EP0517655B1 - Process and device for warping threads on the drum of a sectional warping machine - Google Patents

Process and device for warping threads on the drum of a sectional warping machine Download PDF

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Publication number
EP0517655B1
EP0517655B1 EP19920810387 EP92810387A EP0517655B1 EP 0517655 B1 EP0517655 B1 EP 0517655B1 EP 19920810387 EP19920810387 EP 19920810387 EP 92810387 A EP92810387 A EP 92810387A EP 0517655 B1 EP0517655 B1 EP 0517655B1
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Prior art keywords
warping
drum
roller
deflection roller
warping drum
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EP19920810387
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German (de)
French (fr)
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EP0517655A1 (en
Inventor
Horst Ulbrich
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Benninger AG Maschinenfabrik
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Benninger AG Maschinenfabrik
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    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02H—WARPING, BEAMING OR LEASING
    • D02H7/00—Combined warping and beaming machines

Definitions

  • the invention relates to a method for warping threads onto the warping drum of a cone warping machine according to the preamble of claim 1.
  • the invention also relates to a device according to the preamble of claim 4.
  • the warping tape is wound directly onto the warping drum without being deflected.
  • the warping must be adjusted on the drum, which requires a very complex control.
  • the deflection of the warping belt downward via a deflection roller and the change in the direction of rotation of the warping drum bring about a surprisingly simple improvement in the winding quality.
  • the geometric relationships between the individual components change in such a way that the point of contact of the warping belt on the warping drum or on the winding is practically immediately below the deflection roller. This shortens the entire length of the warp belt between the warp and the run-up point.
  • Working on the warping machine, in particular when attaching crosshairs, is considerably simplified and the construction of the warping machine can also be simplified. However, elaborate warp blade controls for tracking the warping angle with respect to the angle of incidence of the warping belt are also not required.
  • a simplification results in particular if the deflecting roller is designed directly as a measuring roller for measuring the strip tension and / or the strip length. Since the wrap angle on the deflection roller is always approximately the same size in the thread guide according to the invention, a precise measurement of the belt tension can be carried out without additional means.
  • the press roller which is arranged under the deflection roller and can be pressed against the warping belt drum, in order to equalize the application of the warping belt on the warping drum, directly presses the warping belt after the point of impact against the drum without the warping belt first having to make an almost complete drum revolution. This also has a favorable influence on the winding quality.
  • the press roller can still be used in a manner known per se for measuring the warping tape application.
  • the treeing process after the warping i.e. the unwinding of the warp band together as a warp chain on the warping beam
  • the warping of the warping chain was forced over the base point of the warping drum, the warping chain being guided relatively steeply upwards against a deflection roller between the warping drum and the warp beam or directly to the warp beam.
  • the deflection angle on this deflection roller increased continuously.
  • the deflection roller can also be used as a size roller, since the approximately constant wrap angle ensures a uniform size application. However, even without an intermediate deflection, the processing of the warping chain above the apex is advantageous, since the warping chain is more visible and more accessible.
  • the warping machine 1 consists, in a manner known per se, of a warping drum 2, which is held so that it can rotate in a frame (not shown here). It is a cone warping machine in which the individual warping tapes are wound conically. The threads are drawn off from a creel (not shown) and arrive as a thread assembly 5 at a warping reel 7, where they are brought together to form a warping belt 3.
  • the warping arm is fastened on a warping carriage 4 which, according to the cone inclination and the increasing winding thickness, is axially parallel and radially displaceable with respect to its distance from the warping drum.
  • the movement of the warping carriage is carried out by control means, not shown here, which are also known per se to the person skilled in the art.
  • a deflection roller 6 Arranged between the warping arm 7 and the warping drum 2 is a deflection roller 6, the axis 8 of which lies on a horizontal plane between the axis 9 of the warping drum 2 and the apex 10.
  • the deflection roller 6 is assigned to the warping carriage 4 and thus moves together with the warping reed 7 relative to the warping drum 2.
  • the deflection roller 6 is preferably a measuring roller, e.g. according to CH-A-675 589, which can be deflected by the tension of the warping belt 3, the braking means on the creel being loosened with increasing deflection.
  • a measuring roller e.g. according to CH-A-675 589
  • a press roller 11 is arranged below the deflection roller 6 and can be pressed against the warping drum 2.
  • the press roller is also assigned to the warping carriage 4 and moves together with the warping reel 7 and with the deflecting roller 6.
  • the axis 12 of the press roller 11 is preferably arranged on the same horizontal plane as the axis 9 of the warping drum 2.
  • the press roller 11 serves to equalize the tape application on the drum. At the same time, the tape application can be measured and the length dimension of the already wound warping tape can be calculated and kept the same for all warping belts.
  • the warping drum 2 is rotated in the direction of arrow a, so that the direction of rotation extends over the vertex 10 against the deflection roller 6.
  • the run-up point 14 of the warping belt lies on the warping drum 2 or on the winding 18 below the deflection roller 6 and very close to the horizontal center plane of the warping drum.
  • the free stretch of the warping belt between leaving the deflection roller 6 and the run-up point can be kept extremely short during the entire work process.
  • a partial cord 19 has to be inserted into the thread assembly 5 in order to form a crosshair, its handling is much easier than with conventional warping machines.
  • the partial cord is introduced into the warping belt and onto the winding only via a single deflecting roller and in the shortest possible way.
  • the partial cord is also fastened to the warping drum in the lower half and not in the upper half of the warping drum, accessibility being considerably facilitated.
  • the warp beam 15 for treeing the finished warping chain 17 is mounted axially parallel directly next to the warping drum.
  • the warping chain is fed to the warp beam via a deflection roller 16.
  • This deflecting roller is arranged so that its axis lies on a plane slightly above the apex 10 of the warping drum.
  • the warping drum 2 is rotated in the direction of arrow b, the warping chain 17 being unwound over the vertex 10.
  • the deflection angle of the warping chain 17 on the deflection roller 16 immediately at the beginning of the rearing ⁇ 1 changes only slightly until the end of the rearing process ⁇ 2.
  • the deflection roller 16 is therefore particularly advantageous as a measuring roller for measuring or regulating the warp tension.
  • the deflecting roller 16 can also be designed as a corrugated roller, that is to say as a polygonal roller, which loosens connected warp threads by the continuous up and down movement of the warping chain.
  • the deflecting roller 16 can also be used as a size roller for applying size.
  • a major advantage is also that the warping chain 17 of the Warping drum 2 to warp beam 15 can be monitored visually. This would not be practically possible if the direction of rotation is reversed or if the warping chain is unwound from the base of the warping drum.
  • FIGS 3 and 4 show an alternative embodiment.
  • the deflection roller 16 for the warping chain is also omitted in the case of trees.
  • the warping chain 20 runs directly tangentially from the warping drum 2 to the warp beam 15. With this solution, too, the warping chain can be monitored much better than if the unwinding were carried out via the base point of the warping drum.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Warping, Beaming, Or Leasing (AREA)
  • Treatment Of Fiber Materials (AREA)

Description

Die Erfindung betrifft ein Verfahren zum Schären von Fäden auf die Schärtrommel einer Konusschärmaschine gemäss dem Oberbegriff von Anspruch 1. Die Erfindung betrifft ausserdem eine Vorrichtung gemäss dem Oberbegriff von Anspruch 4.The invention relates to a method for warping threads onto the warping drum of a cone warping machine according to the preamble of claim 1. The invention also relates to a device according to the preamble of claim 4.

Schärprozesse dieser Art sind seit vielen Jahren bekannt und gebräuchlich. In der DE-B-2510517 oder in der DE-A-3702293 sind typische Verfahren und Vorrichtungen dieser Gattung beschrieben. Bei allen bisherigen Verfahren war der Drehsinn der Schärtrommel so, dass das vom Schärriet kommende Schärband über den Scheitelpunkt der Schärtrommel aufgewickelt wurde. Dies bedeutet, dass das Schärband nach oben gegen den Scheitelpunkt hin gelenkt bzw. umgelenkt werden muss. Bei dieser Anordnung legt das Schärband zwischen dem Schärriet und dem eigentlichen Auflaufpunkt auf der Schärtrommel bzw. auf dem Wickel eine relativ grosse Strecke zurück. Speziell bei grossen Wickelgeschwindigkeiten hat dies eine unregelmässige Ablage des Schärbandes auf dem Wickel zur Folge. Schliesslich verändert sich die freie Strecke des Schärbandes zwischen der Umlenkung und dem Auflaufpunkt mit wachsendem Wickel ständig, was ebenfalls zu unregelmässigen Wickeln führen kann. Besonders schwierig beim Aufwickeln über den Scheitelpunkt ist das Herstellen von Fadenkreuzen durch Einlegen von Teilschnüren oder anderen Teilelementen.This type of warping process has been known and used for many years. Typical methods and devices of this type are described in DE-B-2510517 or in DE-A-3702293. In all previous processes, the direction of rotation of the warping drum was such that the warping belt coming from the warping machine was wound up over the apex of the warping drum. This means that the warping band has to be directed or deflected upwards towards the apex. With this arrangement, the warping belt travels a relatively large distance between the warping reel and the actual point of impact on the warping drum or on the winding. Especially at high winding speeds, this results in irregular placement of the warp on the winding. Finally, the free stretch of the warping belt between the deflection and the point of run-up changes constantly with the winding, which can also lead to irregular winding. The manufacture of crosshairs by inserting partial cords or other partial elements is particularly difficult when winding over the apex.

Gemäss der DE-B-25 10 517 erfolgt das Aufwickeln des Schärbandes ohne Umlenkung direkt auf die Schärtrommel. Dabei muss das Schärriet jedoch je nach Auflaufwinkel des Bandes auf die Trommel nachgeführt werden, was eine sehr aufwendige Steuerung erfordert.According to DE-B-25 10 517, the warping tape is wound directly onto the warping drum without being deflected. Depending on the run-up angle of the belt, the warping must be adjusted on the drum, which requires a very complex control.

Es ist daher eine Aufgabe der Erfindung, die bekannten Verfahren und Vorrichtungen derart zu verbessern, dass bei einfachem konstruktivem Aufbau die Qualität der Schärkette verbessert wird und dass dem Bedienungspersonal das Arbeiten an der Schärmaschine erleichtert wird. Diese Aufgabe wird in verfahrensmässiger Hinsicht mit einem Verfahren mit den Merkmalen im Anspruch 1 und in vorrichtungsmässiger Hinsicht mit einer Vorrichtung mit den Merkmalen im Anspruch 4 gelöst.It is therefore an object of the invention to improve the known methods and devices in such a way that the quality of the warping chain is improved with a simple structural design and that the operating personnel is made easier to work on the warping machine. In terms of the method, this object is achieved with a method with the features in claim 1 and in terms of the device with a device with the features in claim 4.

Weitere Merkmale der Erfindung sind in der Unteransprücher dargelegt.Further features of the invention are set out in the subclaims.

Die Umlenkung des Schärbandes über eine Umlenkwalze nach unten und die Aenderung des Drehsinns der Schärtrommel bewirken auf überraschend einfache Weise eine erhebliche Verbesserung der Wickelqualität. Die geometrischen Beziehungen zwischen den einzelnen Bauteilen ändern sich derart, dass der Auflaufpunkt des Schärbandes auf der Schärtrommel bzw. auf dem Wickel praktisch unmittelbar unter der Umlenkwalze liegt. Damit verkürzt sich die gesamte Strecke des Schärbandes zwischen dem Schärriet und dem Auflaufpunkt. Das Arbeiten an der Schärmaschine, insbesondere beim Anbringen von Fadenkreuzen, wird wesentlich vereinfacht und ausserdem kann auch die Konstruktion der Schärmaschine vereinfacht werden. Aber auch aufwendige Schärblattsteuerungen zum Nachführen des Schärriets bezüglich des Einfallswinkels des Schärbandes sind nicht erforderlich.The deflection of the warping belt downward via a deflection roller and the change in the direction of rotation of the warping drum bring about a surprisingly simple improvement in the winding quality. The geometric relationships between the individual components change in such a way that the point of contact of the warping belt on the warping drum or on the winding is practically immediately below the deflection roller. This shortens the entire length of the warp belt between the warp and the run-up point. Working on the warping machine, in particular when attaching crosshairs, is considerably simplified and the construction of the warping machine can also be simplified. However, elaborate warp blade controls for tracking the warping angle with respect to the angle of incidence of the warping belt are also not required.

Eine Vereinfachung ergibt sich insbesondere, wenn die Umlenkwalze unmittelbar als Messwalze zum Messen der Bandzugspannung und/oder der Bandlänge ausgebildet ist. Da bei der erfindungsgemässen Fadenführung der Umschlingungswinkel an der Umlenkwalze stets etwa gleich gross ist, kann eine präzise Messung der Bandzugspannung ohne zusätzliche Mittel vorgenommen werden.A simplification results in particular if the deflecting roller is designed directly as a measuring roller for measuring the strip tension and / or the strip length. Since the wrap angle on the deflection roller is always approximately the same size in the thread guide according to the invention, a precise measurement of the belt tension can be carried out without additional means.

Die unter der Umlenkwalze angeordnete und gegen die Schärbandtrommel pressbare Presswalze zum Egalisieren des Schärbandauftrags auf der Schärtrommel presst das Schärband unmittelbar nach dem Auflaufpunkt gegen die Trommel, ohne dass das Schärband zuerst eine fast vollständige Trommelumdrehung zurücklegen muss. Auch dadurch wird die Wickelqualität günstig beeinflusst. Die Presswalze kann dabei trotzdem auf an sich bekannte Weise zum Messen des Schärbandauftrags eingesetzt werden.The press roller, which is arranged under the deflection roller and can be pressed against the warping belt drum, in order to equalize the application of the warping belt on the warping drum, directly presses the warping belt after the point of impact against the drum without the warping belt first having to make an almost complete drum revolution. This also has a favorable influence on the winding quality. The press roller can still be used in a manner known per se for measuring the warping tape application.

Aber auch der Bäumprozess nach dem Schären, also das gemeinsame Abwickeln des Schärbandes als Schärkette auf den Schärbaum, kann durch den geänderten Drehsinn der Schärtrommel wesentlich verbessert werden. Bei den bekannten Vorrichtungen erfolgte das Abwickeln der Schärkette gezwungenermassen über den Fusspunkt der Schärtrommel, wobei die Schärkette relativ steil nach oben gegen eine Umlenkwalze zwischen der Schärtrommel und dem Kettbaum oder direkt an den Kettbaum geführt wurde. Mit zunehmendem Wickelauftrag am Kettbaum bzw. mit abnehmender Wickeldicke an der Schärtrommel vergrösserte sich der Umlenkwinkel an dieser Umlenkwalze ständig. Beim Abwikkeln der Schärkette über den Scheitelpunkt der Schärtrommel werden wesentlich bessere Bedingungen erreicht. Eine leichte Veränderung des Umlenkwinkels findet zwar ebenfalls statt. Da die Umlenkwalze jedoch etwa auf einer Ebene im Bereich des Scheitelpunktes der Schärtrommel angeordnet ist, sind die Winkeldifferenzen wesentlich kleiner. Damit wird es möglich, diese Umlenkwalze für die Schärkette als Messwalze zum Messen der Kettspannung auszubilden.But also the treeing process after the warping, i.e. the unwinding of the warp band together as a warp chain on the warping beam, can be significantly improved by the changed direction of rotation of the warping drum. In the known devices, the warping of the warping chain was forced over the base point of the warping drum, the warping chain being guided relatively steeply upwards against a deflection roller between the warping drum and the warp beam or directly to the warp beam. With an increasing winding order on the warp beam or with a decreasing winding thickness on the warping drum, the deflection angle on this deflection roller increased continuously. When the warping chain is unwound over the apex of the warping drum, much better conditions are achieved. A slight change in the deflection angle also takes place. However, since the deflecting roller is arranged approximately on one level in the region of the apex of the warping drum, the angle differences are considerably smaller. This makes it possible to design this deflection roller for the warping chain as a measuring roller for measuring the warp tension.

Die Umlenkwalze kann aber auch als Schlichtewalze eingesetzt werden, da der etwa gleichbleibende Umschlingungswinkel einen gleichmässigen Schlichteauftrag gewährleistet. Aber auch ohne dazwischengeschaltete Umlenkung ist die Abwicklung der Schärkette über den Scheitelpunkt vorteilhaft, da die Schärkette besser sichtbar und besser zugänglich ist.The deflection roller can also be used as a size roller, since the approximately constant wrap angle ensures a uniform size application. However, even without an intermediate deflection, the processing of the warping chain above the apex is advantageous, since the warping chain is more visible and more accessible.

Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen dargestellt und wird nachstehend genauer beschrieben. Es zeigen:

Figur 1
eine Seitenansicht auf eine erfindungsgemässe Schärmaschine in stark vereinfachter, schematischer Darstellungsweise,
Figur 2
eine etwas vergrösserte Darstellung des Fadenlaufs an der Schärtrommel gemäss Figur 1,
Figur 3
ein alternatives Ausführungsbeispiel , und
Figur 4
eine etwas vergrösserte Darstellung des Fadenlaufs an der Schärtrommel gemäss Figur 3.
An embodiment of the invention is illustrated in the drawings and will be described in more detail below. It demonstrate:
Figure 1
2 shows a side view of a warping machine according to the invention in a highly simplified, schematic representation,
Figure 2
a somewhat enlarged representation of the thread run on the warping drum according to Figure 1,
Figure 3
an alternative embodiment, and
Figure 4
a somewhat enlarged representation of the thread run on the warping drum according to Figure 3.

Die Schärmaschine 1 besteht auf an sich bekannte Weise aus einer Schärtrommel 2, die in einem hier nicht näher dargestellten Gestell drehantreibbar gehalten ist. Dabei handelt es sich um eine Konusschärmaschine, bei welcher die einzelnen Schärbänder konisch aufgewickelt werden. Die Fäden werden von einem nicht dargestellten Spulengatter abgezogen und gelangen als Fadenverband 5 zu einem Schärriet 7, wo sie zu einem Schärband 3 zusammengeführt werden. Das Schärriet ist auf einem Schärschlitten 4 befestigt, der entsprechend der Konusneigung und der zunehmenden Wickeldicke achsparallel und bezüglich seines Abstands zur Schärtrommel radial verschiebbar ist. Die Bewegung des Schärschlittens erfolgt durch hier nicht näher dargestellte Steuerungsmittel, welche dem Fachmann an sich ebenfalls bekannt sind.The warping machine 1 consists, in a manner known per se, of a warping drum 2, which is held so that it can rotate in a frame (not shown here). It is a cone warping machine in which the individual warping tapes are wound conically. The threads are drawn off from a creel (not shown) and arrive as a thread assembly 5 at a warping reel 7, where they are brought together to form a warping belt 3. The warping arm is fastened on a warping carriage 4 which, according to the cone inclination and the increasing winding thickness, is axially parallel and radially displaceable with respect to its distance from the warping drum. The movement of the warping carriage is carried out by control means, not shown here, which are also known per se to the person skilled in the art.

Zwischen dem Schärriet 7 und der Schärtrommel 2 ist eine Umlenkwalze 6 angeordnet, deren Achse 8 auf einer horizontalen Ebene zwischen der Achse 9 der Schärtrommel 2 und deren Scheitelpunkt 10 liegt. Die Umlenkwalze 6 ist dem Schärschlitten 4 zugeordnet und bewegt sich somit zusammen mit dem Schärriet 7 relativ zur Schärtrommel 2.Arranged between the warping arm 7 and the warping drum 2 is a deflection roller 6, the axis 8 of which lies on a horizontal plane between the axis 9 of the warping drum 2 and the apex 10. The deflection roller 6 is assigned to the warping carriage 4 and thus moves together with the warping reed 7 relative to the warping drum 2.

Die Umlenkwalze 6 ist vorzugsweise als Messwalze, z.B. gemäss CH-A-675 589 ausgebildet, welche durch die Zugspannung des Schärbandes 3 auslenkbar ist, wobei mit zunehmender Auslenkung die Bremsmittel am Gatter gelockert werden. Selbstverständlich ist es aber auch denkbar, die Fadenspannung mit anderen Mitteln zu messen und die Umlenkwalze 6 fest zu lagern.The deflection roller 6 is preferably a measuring roller, e.g. according to CH-A-675 589, which can be deflected by the tension of the warping belt 3, the braking means on the creel being loosened with increasing deflection. Of course, it is also conceivable to measure the thread tension with other means and to store the deflection roller 6 firmly.

Unterhalb der Umlenkwalze 6 ist eine Presswalze 11 angeordnet, welche gegen die Schärtrommel 2 anpressbar ist. Die Presswalze ist ebenfalls dem Schärschlitten 4 zugeordnet und bewegt sich zusammen mit dem Schärriet 7 und mit der Umlenkwalze 6. Die Achse 12 der Presswalze 11 ist vorzugsweise auf der gleichen horizontalen Ebene angeordnet wie die Achse 9 der Schärtrommel 2. Die Presswalze 11 dient dazu, den Bandauftrag auf der Trommel zu egalisieren. Gleichzeitig kann der Bandauftrag gemessen werden und daraus das Längenmass des bereits aufgewickelten Schärbandes errechnet und für alle Schärbänder gleich gehalten werden.A press roller 11 is arranged below the deflection roller 6 and can be pressed against the warping drum 2. The press roller is also assigned to the warping carriage 4 and moves together with the warping reel 7 and with the deflecting roller 6. The axis 12 of the press roller 11 is preferably arranged on the same horizontal plane as the axis 9 of the warping drum 2. The press roller 11 serves to equalize the tape application on the drum. At the same time, the tape application can be measured and the length dimension of the already wound warping tape can be calculated and kept the same for all warping belts.

Zum Schären wird die Schärtrommel 2 in Pfeilrichtung a gedreht, so dass die Drehrichtung über den Scheitelpunkt 10 gegen die Umlenkwalze 6 verläuft. Wie insbesondere aus Figur 2 ersichtlich ist, liegt der Auflaufpunkt 14 des Schärbandes auf der Schärtrommel 2 bzw. auf dem Wickel 18 unterhalb der Umlenkwalze 6 und sehr nahe bei der horizontalen Mittelebene der Schärtrommel. Die freie Strecke des Schärbandes zwischen dem Verlassen der Umlenkwalze 6 und dem Auflaufpunkt kann während des gesamten Arbeitsvorgangs äusserst kurz gehalten werden.For warping, the warping drum 2 is rotated in the direction of arrow a, so that the direction of rotation extends over the vertex 10 against the deflection roller 6. As can be seen in particular from FIG. 2, the run-up point 14 of the warping belt lies on the warping drum 2 or on the winding 18 below the deflection roller 6 and very close to the horizontal center plane of the warping drum. The free stretch of the warping belt between leaving the deflection roller 6 and the run-up point can be kept extremely short during the entire work process.

In den meisten Fällen kann auf diese Weise auf eine spezielle Bandbreitenregelung verzichtet werden, da eine Veränderung der Bandbreite durch äussere Einflüsse wie z.B. Umluft usw. kaum mehr möglich ist. Auch das Stoppen und Wiederinbetriebsetzen des Wickelvorgangs hat bei dieser kurzen Schärbandführung praktisch keinen Einfluss auf das Schärband.In most cases, a special bandwidth control can be dispensed with in this way, since it is hardly possible to change the bandwidth due to external influences such as air circulation, etc. Stopping and restarting the winding process also has this short warp guide practically no influence on the warp.

Muss zur Bildung eines Fadenkreuzes eine Teilschnur 19 in den Fadenverband 5 eingeführt werden, so ist deren Handhabung wesentlich leichter als bei konventionellen Schärmaschinen. Die Einführung der Teilschnur in das Schärband und auf den Wickel erfolgt nur über eine einzige Umlenkwalze und auf dem kürzestmöglichen Weg. Auch die Befestigung der Teilschnur an der Schärtrommel erfolgt in der unteren Hälfte und nicht in der oberen Hälfte der Schärtrommel, wobei die Zugänglichkeit wesentlich erleichtert wird.If a partial cord 19 has to be inserted into the thread assembly 5 in order to form a crosshair, its handling is much easier than with conventional warping machines. The partial cord is introduced into the warping belt and onto the winding only via a single deflecting roller and in the shortest possible way. The partial cord is also fastened to the warping drum in the lower half and not in the upper half of the warping drum, accessibility being considerably facilitated.

Der Kettbaum 15 zum Bäumen der fertigen Schärkette 17 ist unmittelbar neben der Schärtrommel achsparallel gelagert. Die Schärkette wird dem Kettbaum über eine Umlenkwalze 16 zugeführt. Diese Umlenkwalze ist so angeordnet, dass ihre Achse auf einer Ebene etwas über dem Scheitelpunkt 10 der Schärtrommel liegt.The warp beam 15 for treeing the finished warping chain 17 is mounted axially parallel directly next to the warping drum. The warping chain is fed to the warp beam via a deflection roller 16. This deflecting roller is arranged so that its axis lies on a plane slightly above the apex 10 of the warping drum.

Zum Schären wird die Schärtrommel 2 in Pfeilrichtung b gedreht, wobei die Schärkette 17 über den Scheitelpunkt 10 abgewickelt wird. Der Umlenkwinkel der Schärkette 17 an der Umlenkwalze 16 unmittelbar beim Beginn des Bäumens ∝1 ändert sich bis zum Schluss des Bäumvorgangs ∝2 nur geringfügig. Wegen des stets etwa gleichen Umschlingungswinkels eignet sich die Umlenkwalze 16 daher besonders vorteihaft als Messwalze zum Messen bzw. zum Regeln des Kettzuges. Alternativ oder gleichzeitig kann die Umlenkwalze 16 auch als Sickenwalze, also als mehreckige Walze ausgebildet sein, die durch fortwährende Auf- und Abbewegung der Schärkette zusammenhängende Kettfäden löst. Auch als Schlichtewalze zum Auftragen von Schlichte kann die Umlenkwalze 16 eingesetzt werden.For warping, the warping drum 2 is rotated in the direction of arrow b, the warping chain 17 being unwound over the vertex 10. The deflection angle of the warping chain 17 on the deflection roller 16 immediately at the beginning of the rearing ∝1 changes only slightly until the end of the rearing process ∝2. Because the wrap angle is always approximately the same, the deflection roller 16 is therefore particularly advantageous as a measuring roller for measuring or regulating the warp tension. Alternatively or at the same time, the deflecting roller 16 can also be designed as a corrugated roller, that is to say as a polygonal roller, which loosens connected warp threads by the continuous up and down movement of the warping chain. The deflecting roller 16 can also be used as a size roller for applying size.

Ein wesentlicher Vorteil liegt übrigens auch noch darin, dass während des ganzen Bäumprozesses die Schärkette 17 von der Schärtrommel 2 bis zum Kettbaum 15 visuell überwacht werden kann. Bei umgekehrtem Drehsinn, bzw. bei einem Abwickeln der Schärkette über den Fusspunkt der Schärtrommel wäre dies praktisch nicht möglich.A major advantage is also that the warping chain 17 of the Warping drum 2 to warp beam 15 can be monitored visually. This would not be practically possible if the direction of rotation is reversed or if the warping chain is unwound from the base of the warping drum.

Die Figuren 3 und 4 zeigen ein alternatives Ausführungsbeispiel.Figures 3 and 4 show an alternative embodiment.

Aus Figur 4 ist auch noch deutlich sichtbar, dass das umgelenkte Schärband 3 vertikal auf die Schärtrommel bzw. auf den Wickel aufläuft und dass demzufolge der Auflaufpunkt 14 genau auf der horizontalen Ebene der Achse 9 der Schärtrommel liegt.From FIG. 4 it is also clearly visible that the deflected warping belt 3 runs vertically onto the warping drum or onto the winding and that consequently the run-up point 14 lies exactly on the horizontal plane of the axis 9 of the warping drum.

Anders als beim vorhergehenden Ausführungsbeispiel fällt beim Bäumen auch die Umlenkwalze 16 für die Schärkette weg. Die Schärkette 20 verläuft unmittelbar tangential von der Schärtrommel 2 zum Kettbaum 15. Auch bei dieser Lösung kann die Schärkette wesentlich besser überwacht werden, als wenn das Abwickeln über den Fusspunkt der Schärtrommel erfolgen würde.In contrast to the previous exemplary embodiment, the deflection roller 16 for the warping chain is also omitted in the case of trees. The warping chain 20 runs directly tangentially from the warping drum 2 to the warp beam 15. With this solution, too, the warping chain can be monitored much better than if the unwinding were carried out via the base point of the warping drum.

Selbstverständlich kann sich die geometrische Anordnung der einzelnen Walzen sowie deren Durchmesser je nach Anwendungsfall verändern, ohne dass dabei der Gegenstand der Erfindung verlassen wird.Of course, the geometrical arrangement of the individual rollers and their diameter can change depending on the application, without thereby leaving the subject matter of the invention.

Claims (9)

  1. Method of warping yarns on the warping drum (2) of a cone-type sectional warping machine (1), a yarn strip (5) being withdrawn from a bobbin creel and wound onto the warping drum as a warp strip (3) and a warping carriage (4), on which are arranged a warping reed and a deflection roller, being displaced both parallel to and also in relation to its distance from the axis of the drum in dependence on the cone angle and the increasing thickness of the winding, characterized in that the warp strip is deflected downwards around the vertex of the deflection roller (6) and is pressed against the warping drum by a press roller (11) allocated to the warping carriage immediately beneath the deflection roller and that the run-on point (14) of the warp strip onto the warping drum or onto the winding lies directly below or at the deflection roller on a horizontal plane between the axis (9) of the warping drum and the vertex (10) of said warping drum, as well as on a horizontal plane between the axis (12) of the press roller and the vertex of the deflection roller, the warping drum being rotated in a direction that runs from the vertex of said warping drum towards the deflection roller.
  2. Method according to claim 1, characterized in that the tension of the warping strip (3) and/or its length is measured on the deflection roller (6).
  3. Method according to claim 1 wherein the warp (17) on the drum is subsequently wound onto a warping beam (15), characterized in that the warp (17) is wound over the vertex (10) of the warping drum (2), the rotational direction of the drum being reversed.
  4. Device for the warping of yarns onto the warping drum (2) on a cone-type sectional warping machine according to the method described in claim 1 on which a yarn strip (5), withdrawn from a bobbin creel as a warping strip (3), is able to be wound onto the warping drum, with a warping reed (7), said warping reed being able to be displaced on a warping carriage (4) as well as both parallel to and, with regard to its distance, radially in relation to the axis (9) of the warping drum (2), and with a deflection roller (6) arranged on the warping carriage between the warping reed (7) and the warping drum (2), the axis (8) of the deflection roller lying on a horizontal plane between the axis (9) of the warping drum and the vertex (10) of the warping drum, characterized in that the warping drum can be driven to rotate in such a way that the warp strip (3) is able to be wound over the deflection roller (6) downwards onto the warping drum, and that a press roller is arranged below the deflection roller (6), said press roller being allocated to the warping carriage and being able to be pressed against the warping drum (2) in order to equalize the application of the warp strip onto the warping drum directly after the delection roller (6), the warping strip being able to be wound onto the warping drum or onto the winding at a run-on point lying on a horizontal plane between the axis of the warping drum and the vertex of said warping drum as well as between the axis of the press roller and the vertex of the deflection roller.
  5. Device according to claim 4, characterized in that the axis (13) of the press roller (11) is arranged on the same horizontal plane as the axis of the warping drum (2).
  6. Device according to one of the claims 4 or 5, characterized in that the deflection roller (6) is formed as a measuring roller to measure the strip tension and/or the strip length.
  7. Device according to one of the claims 4 to 6, with a warping beam (15) for beaming the warp (17), said warping beam being mounted in bearings to rotate parallel to the warping drum on the side of the warping drum oriented away from the warping reed.
  8. Device according to claim 7, characterized in that a deflection roller (16) is arranged between the warping drum (2) and the warping beam (15), the axis of said deflection roller lying on a horizontal plane above the axis of the warping drum.
  9. Device according to claim 8, characterized in that the deflection roller (16) is formed as a tension measuring roller for measuring the tension of the warp (17).
EP19920810387 1991-06-07 1992-05-22 Process and device for warping threads on the drum of a sectional warping machine Expired - Lifetime EP0517655B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1709/91 1991-06-07
CH1709/91A CH683433A5 (en) 1991-06-07 1991-06-07 Method and apparatus for warping of yarns onto the warping drum of a warping machine.

Publications (2)

Publication Number Publication Date
EP0517655A1 EP0517655A1 (en) 1992-12-09
EP0517655B1 true EP0517655B1 (en) 1996-07-31

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EP19920810387 Expired - Lifetime EP0517655B1 (en) 1991-06-07 1992-05-22 Process and device for warping threads on the drum of a sectional warping machine

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EP (1) EP0517655B1 (en)
CH (1) CH683433A5 (en)
DE (1) DE59206838D1 (en)
ES (1) ES2090570T3 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE59808068D1 (en) 1998-06-17 2003-05-28 Benninger Ag Maschf Device for transferring a thread field from a thread winding onto a winding tree
ES2255791B1 (en) * 2003-10-20 2007-07-16 Comsa Comercial, S.A. SECTIONAL URDIDOR FOR THREADING.
DE102005033524A1 (en) * 2005-06-22 2006-12-28 H.K.O. Isolier- Und Textiltechnik Gmbh Bandscheranlage and method for Kettbaumherstellung
CN105177790A (en) * 2015-08-17 2015-12-23 吴江市华运纺织品有限公司 Large jacquard batch warping machine
CN109440248B (en) * 2018-09-28 2021-07-23 安徽省兰飞化纤织造有限公司 Warping polyester monofilament winding displacement guiding device with automatic tension control function
CN111926437B (en) * 2020-08-06 2022-03-11 福州市长乐区山城针纺有限公司 Yarn fixing device and method of warping machine

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Publication number Priority date Publication date Assignee Title
US1478082A (en) * 1922-01-13 1923-12-18 Whitlock Cleveland Warping process
ES349128A1 (en) * 1967-12-20 1969-04-01 Maquinaria Textil Del Norte De Improvements in the machines for the rolling of the flat urdimers directly to the folder. (Machine-translation by Google Translate, not legally binding)
DE2510517C3 (en) * 1975-03-11 1979-06-13 Hacoba Textilmaschinen Gmbh & Co Kg, 5600 Wuppertal Method and device for warping threads
DE3103555A1 (en) * 1981-02-03 1982-10-14 W. Schlafhorst & Co, 4050 Mönchengladbach Warp-preparation machine
DE3149984A1 (en) * 1981-12-17 1983-06-30 Gebrüder Sucker, 4050 Mönchengladbach Beaming machine
CH669409A5 (en) * 1986-02-27 1989-03-15 Benninger Ag Maschf
US4890368A (en) * 1988-09-29 1990-01-02 Reed-Chatwood, Inc. Warper with tension isolator and tension controller
DE3900487A1 (en) * 1989-01-10 1990-07-19 Hacoba Textilmaschinen Beaming machine for the selective assembling and warping of textile thread groups
CH678171A5 (en) * 1989-05-11 1991-08-15 Benninger Ag Maschf

Also Published As

Publication number Publication date
ES2090570T3 (en) 1996-10-16
DE59206838D1 (en) 1996-09-05
CH683433A5 (en) 1994-03-15
EP0517655A1 (en) 1992-12-09

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