EP0179178A1 - Method for preparing the weft supply in looms, and storage device for applying the same - Google Patents

Method for preparing the weft supply in looms, and storage device for applying the same Download PDF

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Publication number
EP0179178A1
EP0179178A1 EP84810515A EP84810515A EP0179178A1 EP 0179178 A1 EP0179178 A1 EP 0179178A1 EP 84810515 A EP84810515 A EP 84810515A EP 84810515 A EP84810515 A EP 84810515A EP 0179178 A1 EP0179178 A1 EP 0179178A1
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EP
European Patent Office
Prior art keywords
turns
weft
teeth
weft insertion
winding body
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.)
Withdrawn
Application number
EP84810515A
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German (de)
French (fr)
Inventor
Cornelis Van Donk
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.)
Sulzer AG
Original Assignee
Sulzer AG
Gebrueder Sulzer AG
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 Sulzer AG, Gebrueder Sulzer AG filed Critical Sulzer AG
Priority to EP84810515A priority Critical patent/EP0179178A1/en
Priority to JP23550485A priority patent/JPS61102455A/en
Publication of EP0179178A1 publication Critical patent/EP0179178A1/en
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/34—Handling the weft between bulk storage and weft-inserting means
    • D03D47/36—Measuring and cutting the weft
    • D03D47/361—Drum-type weft feeding devices
    • D03D47/362—Drum-type weft feeding devices with yarn retaining devices, e.g. stopping pins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H51/00—Forwarding filamentary material
    • B65H51/20—Devices for temporarily storing filamentary material during forwarding, e.g. for buffer storage
    • B65H51/22—Reels or cages, e.g. cylindrical, with storing and forwarding surfaces provided by rollers or bars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • the invention relates to a method for operating a weft store of a weaving machine, with a winding body for winding up a number of thread turns to be stored and with a rotating separating disc engaging between the turns with its teeth for moving the stored turns in the direction of the axis of the winding body. Furthermore, the invention relates to a weft thread store for performing the method.
  • a weft thread store with a relatively large diameter of the winding body and a comparatively large number of turns must be used for one and the same weft insertion, so that a sufficient weft length between two successive teeth of the separating disk can be made available.
  • This is particularly the case with weaving machines with a large weaving width of e.g. 5 m and more the case. Since the turns are relatively close to each other, the previous method also easily leads to the case that the separating teeth do not pierce in the right place and thus too many or too few turns are made available in the following tooth gap. There is then a too large or too small shot length in the following tooth gap, which causes disorders in the tissue.
  • the invention has for its object to provide a particularly improved method in this regard and an associated weft store.
  • the inventive method is that a the weft length (weaving width) corresponding number of weft thread windings stored on the winding former is divided by the teeth of the separating disk and divided into at least two tooth gaps between two teeth, such that thread is removed from at least two tooth gaps during one and the same weft insertion.
  • the associated weft thread store is characterized in that the drive for winding the windings on the winding body and the drive of the separating disk are in such a relationship to one another that the drive for winding the turns on the winding body and the drive of the separating disk are in such a ratio to each other that the separating disc is rotated forward by at least one tooth during one and the same weft insertion, such that the thread length for one and the same weft insertion is taken from at least two tooth gaps in the separating disc.
  • the teeth of the separating disc can work more precisely, so that the correct weft thread length is always entered. Since the turns no longer need to be so close together, it can also be avoided that the teeth of the separating disc split open and wound the wound yarn.
  • a weaving machine designated as a whole by 61, has two side cheeks 92, 93, a goods tree 94 arranged between them, a weft feed eyelet 95 and a main entry nozzle 81 for the weft insertion, which is to be fed with compressed air.
  • a pot-shaped housing part 2 is attached to a support arm 1 arranged on the weaving machine 61.
  • a drive body 4 is rotatably mounted, which e.g. can be set in rotation on its shoulder 51 by means of a toothed belt 10.
  • the drive is derived from the main shaft of the weaving machine 61, not shown.
  • the drive body 4 contains, with the interposition of needle bearings 5, a straight tube 6 for guiding the winding body designated by 8 from a supply spool onto a whole.
  • the drive body 4 continues in FIG. 1 to the right into a stub shaft 11 on which the winding body 8 is rotatably supported with the interposition of a ball bearing 13 is, but is secured against rotation by a guide part 22 described in more detail below.
  • the winding body contains a pot-shaped part 53 fastened on a disk 54.
  • rods 14 arranged distributed around the circumference, inserted at part 53 at 55 and adjustably attached for receiving the lower part of the winding on the winding body 8 .
  • a separating disc 17 which is driven via a worm 15 and a worm wheel 16 and can be rotated about the axis 62.
  • the teeth 18 of the separating disc reach out through an opening 19 of the winding body 8 and protrude into the stationary at 21 Housing pot 2 fastened guide part 22. As a result, the winding body 8 is secured against rotation.
  • drive body 4 and stub shaft 11 rotate according to arrow 23, so that thread feed tube 6 rotates around body 4 and stub shaft 11 about the axis 25 indicated by dashed lines.
  • 8 turns of thread 31 are placed on the winding body 8, which can be pushed through the teeth 18 of the separating disk 17 in FIG. 1 to the right and can be drawn off overhead at the end 32 of the winding body 8 during the weft insertion.
  • a compensation rod 44 is arranged in the drive body 4 for mass compensation with respect to the inlet pipe 6.
  • the position of the separating disk 17 according to FIG. 2 corresponds to the angular position of 90 ° of the main shaft of the weaving machine 61.
  • the winding group 72 consisting of the five turns 76 in FIG. 2 has moved to the right against the withdrawal end 32 of the winding body 8.
  • the following turn group 73 formed from the five turns 77 is located to the left of group 72.
  • Group 72 comes from tooth gap 80 between teeth 18f, 18a, group 73 from tooth gap 78 formed between two teeth 18a, 18b.
  • To the left of tooth 18b is a third one the five turns 79 of the turn group 74. It lies in the tooth gap 81 formed by the teeth 18b, 18c.
  • a weft insertion (Pfei] e98) begins.
  • the main entry nozzle 81 receives compressed air, so that the weft thread 7 is inserted into the shed 83 formed by the warp threads 82.
  • Disk 17 runs in the position shown in FIG. 3 (125 ° angular position of the main shaft).
  • the turns 76 of group 72 have already been withdrawn, the turns group 73 is in the position where group 72 was previously due to the forward movement of tooth 16b.
  • Group 74 is still in the same place as before.
  • the first turn of group 73 is being drawn off.
  • the separating disk 17 reaches the position shown in FIG. 5 (235 ° main shaft angle).
  • the winding group 74 from gap 81 is completely used up, a weft brake 85 (FIG. 5) is released so that the upward movement (arrow 90) under the action of a spring can reach the braking position 85a indicated in FIG. 6.
  • the weft thread 7 is pressed against the guide part 22 and brought to a standstill. The shot entry is over.
  • the separating disk 17 has meanwhile been rotated into the position according to FIG. 6 (280 ° main shaft angle).
  • the tooth 18d has emerged from the winding body 8 and lies: behind the winding group 82. It is located in the tooth gap 99.
  • the group 82 is separated from a subsequent group 96 belonging to gap 101 by the tooth 18d.
  • Group 96 is still incomplete at the position according to FIG. 6 and only contains the four turns 97. Another turn is still missing and is then placed on.
  • a turn group of five turns is inserted into each tooth gap, which is then separated from the next turn group, which also comprises five turns, by the following tooth.
  • FIG. 2 it can be seen that after the tooth 18a has dipped into the interior of the winding body 8, the two groups 72, 73 move towards one another and are ready for the entry.
  • the third group 74 intended for the same entry is only shifted to the right by the tooth 18c in FIG. 2 until it is finally available for unwinding in the position according to FIG. 4.
  • the teeth 18c, 18f each have a hook 86 directed backwards in the direction of rotation, by means of which, in the positions according to FIGS the next Weft insertion begins and, for example, the tooth 18c provided with the hook 86 dips into the winding body 8.
  • the number of revolutions of the winding tube 6 can be, for example, 6000 min, corresponding to a weaving machine speed of, for example, 400 min with a weaving width of 3.60 m and a diameter D of the winding body 8 of approximately 8 cm.
  • the associated speed of the separating disk 17 would then be, for example, 2 00 min -1 .
  • the separating disc has 17 teeth which are driven by a planetary gear and are constantly held in a vertical position in FIGS. 2-6 (DE-OS 27 51 380).
  • the separating disc has 17 teeth which are driven by a planetary gear and are constantly held in a vertical position in FIGS. 2-6 (DE-OS 27 51 380).
  • only two successive turn groups from the two associated successive tooth gaps are used for one and the same weft insertion. This is followed by two further groups of turns which are used for a further weft insertion, etc.
  • the method can also be used ) if multi-color operation is to be carried out with the weaving machine and two or more weft thread stores are presented in parallel to the weaving machine, from which weft threads are alternately drawn and drawn in accordance with the weaving program will be carried.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Forwarding And Storing Of Filamentary Material (AREA)

Abstract

The method involves placing a group (72,73,74) of coils (76,77,79) into every gap (80,78,81) between the teeth of the separating disc (17). All three groups are used for one and the same weft insertion which has a thread length corresponding to the weaving width (W). During the take-off of the coils for the same weft insertion the coil groups (72,73,74) are transported forward by the teeth (18a,18b,18c) in the direction of the axis (25) of the wound structure (8) and successively taken off overhead during the same weft insertion. This makes it possible to achieve a larger number of coils with one and the same weft insertion, so that the diameter of a coil and hence also the required diameter (D) of the wound structure (8) can be made smaller. The separating disc (17) is operated at a correspondingly higher speed in order that the coil groups (72 to 74) may be transported sufficiently rapidly towards the take-off end (32) of the wound structure (8). <IMAGE>

Description

Die Erfindung betrifft ein Verfahren für den Betrieb eines Schussfadenspeichers einer Webmaschine, mit einem Wickelkörper zum Aufwickeln einer Anzahl von zu speichernden Fadenwindungen und mit einer rotierenden, zwischen die Windungen mit ihren Zähnen eingreifenden Separierscheibe zum Verschieben der gespeicherten Windungen in Richtung der Achse des Wickelkörpers. Ferner bezieht sich die Erfindung auf einen Schussfadenspeicher zur Durchführung des Verfahrens.The invention relates to a method for operating a weft store of a weaving machine, with a winding body for winding up a number of thread turns to be stored and with a rotating separating disc engaging between the turns with its teeth for moving the stored turns in the direction of the axis of the winding body. Furthermore, the invention relates to a weft thread store for performing the method.

Bei einem bisherigen Verfahren dieser Art (pE-OS 27 51 380 / TS 252) werden zwischen je zwei Zähne der Separierscheibe so viele Windungen gewickelt, dass diese der gewünschten Schussfadenlänge bzw. Webbreite gleich sind. Ist die Separierscheibe soweit weitergedreht, dass der -- in Drehrichtung -- vor der Windungsgruppe liegende Zahn in den Wickelkörper eintaucht, so werden sämtliche Windungen dieser Windungsgruppe von dem Wickelkörper abgezogen und in das Webfach der Webmaschine eingetragen. Dann tritt eine Schusseintragspause ein, die etwa so lange dauert (z.B. 180° der Hauptwellenrotation) wie der Schusseintrag selbst (der z.B. ebenfalls ca. 1800 dauert). Während der Eintragspause wird eine neue Windungsgruppe auf den Wickelkörper gewickelt, die wiederum durch die beiden benachbarten Zähne begrenzt wird. Anschliessend folgt der nächste Schusseintrag, usw.In a previous method of this type (pE-OS 27 51 380 / TS 252), so many turns are wound between two teeth of the separating disc that they are equal to the desired weft thread length or weaving width. If the separating disc is rotated further so that the tooth lying in front of the winding group in the direction of rotation dips into the winding body, then all turns of this winding group are pulled off the winding body and entered into the weaving shed of the weaving machine. Then a weft break occurs, which is about as long takes (eg 180 ° of the main shaft rotation) as the weft insertion itself (eg also about 180 0 lasts). During the A new group of turns is wound onto the winding former, which in turn is delimited by the two adjacent teeth. The next weft entry follows, etc.

Bei diesem bekannten Verfahren muss ein Schussfadenspeicher mit relativ grossem Durchmesses des Wickelkörpers und einer verhältnismässig grossen Anzahl von Windungen für ein und denselben Schusseintrag benutzt werden, damit eine genügende Schusslänge zwischen zwei aufeinanderfolgenden Zähnen der Separierscheibe zur Verfügung gestellt werden kann. Dies ist insbesondere bei Webmaschinen mit grosser Webbreite von z.B. 5 m und mehr der Fall. Da die Windungen relativ dicht beieinander liegen, tritt bei dem bisherigen Verfahren auch leicht der Fall ein, dass die Separierzähne nicht an der richtigen Stelle einstechen und dadurch zu viel oder zu wenig Windungen in der folgenden Zahnlücke zur Verfügung gestellt werden. Es liegt dann eine zu grosse bzw. zu kleine Schusslänge in der folgenden Zahnlücke, wodurch Störungen im Gewebe auftreten.In this known method, a weft thread store with a relatively large diameter of the winding body and a comparatively large number of turns must be used for one and the same weft insertion, so that a sufficient weft length between two successive teeth of the separating disk can be made available. This is particularly the case with weaving machines with a large weaving width of e.g. 5 m and more the case. Since the turns are relatively close to each other, the previous method also easily leads to the case that the separating teeth do not pierce in the right place and thus too many or too few turns are made available in the following tooth gap. There is then a too large or too small shot length in the following tooth gap, which causes disorders in the tissue.

Ferner kann infolge der dichten lage der Windungen der Fall eintreten, dass das gespeicherte Garn beim Einstechen eines Separierzahnes in die Windungen durch diesen verletzt wird. Dies tritt besonders dann ein, wenn es sich um Filamentgarn, insbesondere um ungedrehtes Filamentgarn handelt, das eine grosse Anzahl, z.B. 100 Fibrillen enthält.Furthermore, due to the dense position of the turns, the case may occur that the stored yarn is injured by the separating tooth when it is inserted into the turns. This occurs particularly when it is filament yarn, in particular untwisted filament yarn, which a large number, e.g. Contains 100 fibrils.

Der erfindung liegt die Aufgabe zugrunde, ein besonders in dieser Hinsicht verbessertes Verfahren und einen zugehörigen Schussfadenspeicher zu schaffen.The invention has for its object to provide a particularly improved method in this regard and an associated weft store.

Das erfindungsgemässe Verfahren besteht darin, dass eine der Schusslänge (Webbreite) entsprechende Anzahl von auf dem Wickelkörper gespeicherten Schussfadenwindungen von den Zähnen der Separierscheibe unterteilt und in mindestens zwei zwischen je zwei Zähnen befindliche Zahnlücken aufgeteilt wird, derart, dass während ein und desselben Schusseintrages faden aus mindestens zwei Zahnlücken entnommen wird. Der zugehörige Schussfadenspeicher ist dadurch gekennzeichnet, dass der Antrieb für das Wickeln der Windungen auf den Wickelkörper und der Antrieb der Separierscheibe in einem solchen Verhältnis zueinander stehen, dass der Antrieb für das Wickeln der Windungen auf den Wickelkörper und der Antrieb der Separierscheibe in einem solchen Verhältnis zueinander stehen, dass die Separierscheibe während ein und desselben Schusseintrages um mindestens einen Zahn vorwärts gedreht wird, derart, dass die Fadenlänge für ein und denselben Schusseintrag aus mindestens zwei Zahnlücken der Separierscheibe entnommen wird.The inventive method is that a the weft length (weaving width) corresponding number of weft thread windings stored on the winding former is divided by the teeth of the separating disk and divided into at least two tooth gaps between two teeth, such that thread is removed from at least two tooth gaps during one and the same weft insertion. The associated weft thread store is characterized in that the drive for winding the windings on the winding body and the drive of the separating disk are in such a relationship to one another that the drive for winding the turns on the winding body and the drive of the separating disk are in such a ratio to each other that the separating disc is rotated forward by at least one tooth during one and the same weft insertion, such that the thread length for one and the same weft insertion is taken from at least two tooth gaps in the separating disc.

Hierdurch lässt sich erzielen, dass eine grössere Anzahl von Windungen, z.B. fünfzehn Windungen für einen einzigen Schusseintrag verwendet werden können, die sich z.B. auf drei Zahnlücken verteilen, wobei in jeder Zahnlücke eine Gruppe von fünf Windungen zu liegen kommt. Aufgrund der grösseren Windungszahl braucht der Durchmesser einer einzigen Windung nicht mehr so gross zu sein wie bisher. Demzufolge kann die Wickeltrommel des Schussfadenspeichers entsprechend geringen Durchmesser besitzen und der ganze Schussfadenspeicher eine geringere Grösse aufweisen.This allows a large number of turns, e.g. fifteen turns can be used for a single weft insertion, e.g. spread over three tooth gaps, with a group of five turns in each tooth gap. Due to the larger number of turns, the diameter of a single turn no longer needs to be as large as before. As a result, the winding drum of the weft store can have a correspondingly small diameter and the entire weft store can have a smaller size.

Die Zähne der Separierscheibe vermögen exakter zu arbeitein, so dass immer die richtige Schussfadenlänge eingetragen wird. Da die Windungen nicht mehr so dicht nebeneinander zu liegen brauchen, kann auch vermieden werden, dass die Zähne der Separierscheibe das gewickelte Garn aufspleissen und verletzen.The teeth of the separating disc can work more precisely, so that the correct weft thread length is always entered. Since the turns no longer need to be so close together, it can also be avoided that the teeth of the separating disc split open and wound the wound yarn.

Weitere Merkmale ergeben sich aus der folgenden Beschreibung von Ausführungsbeispielen in Verbindung mit der Zeichnung und den Ansprüchen.

  • Fig. 1 zeigt -- teilweise in schematischer Darstellung -einen erfindungsgemässen Schussfadenspeicher mit einer Webmaschine, wobei das erfindungsgemässe Verfahren angewendet ist,
  • Fig. 2 bis 6 veranschaulichen ein zugehöriges Detail in grösserem Massstab und in mehreren Betriebspositionen.
Further features emerge from the following description of exemplary embodiments in conjunction with the drawing and the claims.
  • 1 shows - partly in a schematic representation - a weft thread store according to the invention with a weaving machine, the method according to the invention being used,
  • 2 to 6 illustrate an associated detail on a larger scale and in several operating positions.

Eine als Ganzes mit 61 bezeichnete Webmaschine besitzt zwei Seitenwangen 92,93, einen dazwischen angeordneten Warenbaum 94, eine Schussfadenzuführungsöse 95 und eine mit Druckluft zu speisende Haupteintragsdüse 81 für den Schussfadeneintrag. Auf einem an der Webmaschine 61 angeordneten Tragarm 1 ist ein topfförmiger Gehäuseteil 2 angebracht. In diesem ist unter Zwischenlage von Kugellagern 3 ein Antriebskörper 4 drehbar gelagert, der z.B. an seinem Ansatz 51 mittels eines Zahnriemens 10 in Drehung versetzt werden kann. Der Antrieb ist aus der nicht dargestellten Hauptwelle der Webmaschine 61 abgeleitet. Der Antriebskörper 4 enthält unter Zwischenlage von Nadellagern 5 ein gerades Rohr 6 zur Führung des von einer Vorratsspule auf einen als Ganzes mit 8 bezeichneten Wickelkörper.A weaving machine, designated as a whole by 61, has two side cheeks 92, 93, a goods tree 94 arranged between them, a weft feed eyelet 95 and a main entry nozzle 81 for the weft insertion, which is to be fed with compressed air. A pot-shaped housing part 2 is attached to a support arm 1 arranged on the weaving machine 61. In this, with the interposition of ball bearings 3, a drive body 4 is rotatably mounted, which e.g. can be set in rotation on its shoulder 51 by means of a toothed belt 10. The drive is derived from the main shaft of the weaving machine 61, not shown. The drive body 4 contains, with the interposition of needle bearings 5, a straight tube 6 for guiding the winding body designated by 8 from a supply spool onto a whole.

Der Antriebskörper 4 setzt sich in Fig. 1 nach rechts in einen Wellenstumpf 11 fort, auf dem unter Zwischenlage eines Kugellagers 13 der Wickelkörper 8 drehbar gelagert ist, jedoch durch einen weiter unten näher beschriebenen Führungsteil 22 gegen Drehung gesichert ist. Der Wickelkörper enthält einen auf einer Scheibe 54 befestigten, topfförmigen Teil 53. Im unteren Bereich des Wickelkörpers befinden sich einige auf den Umfang verteilt angeordnete, am Teil 53 bei 55 eingesteckte und verstellbar angebrachte Stäbe 14 zur Aufnahme des unteren Teiles der Wicklung auf dem Wickelkörper 8.The drive body 4 continues in FIG. 1 to the right into a stub shaft 11 on which the winding body 8 is rotatably supported with the interposition of a ball bearing 13 is, but is secured against rotation by a guide part 22 described in more detail below. The winding body contains a pot-shaped part 53 fastened on a disk 54. In the lower region of the winding body there are some rods 14 arranged distributed around the circumference, inserted at part 53 at 55 and adjustably attached for receiving the lower part of the winding on the winding body 8 .

Im Inneren des Wickelkörpers 8 befindet sich eine über eine Schnecke 15 und ein Schneckenrad 16 angetriebene, um die Achse 62 drehbare Separierscheibe 17. Die Zähne 18 der Separierscheibe greifen durch eine Oeffnung 19 des Wickelkörpers 8 nach aussen und ragen in den bei 21 ortsfest an den Gehäusetopf 2 befestigten Führungsteil 22. Hierdurch wird der Wickelkörper 8 gegen Drehung gesichert.In the interior of the winding body 8 there is a separating disc 17 which is driven via a worm 15 and a worm wheel 16 and can be rotated about the axis 62. The teeth 18 of the separating disc reach out through an opening 19 of the winding body 8 and protrude into the stationary at 21 Housing pot 2 fastened guide part 22. As a result, the winding body 8 is secured against rotation.

Während des Betriebes rotieren Antriebskörper 4 und Wellenstumpf 11 gemäss Pfeil 23, so dass das Fadenzuführungsrohr 6 um die gestrichelt angedeutete Achse 25 von Körper 4 und Wellenstumpf 11 umläuft. Dabei werden auf den Wickelkörper 8 Fadenwindungen 31 aufgelegt, die durch die Zähne 18 der Separierscheibe 17 in Fig. 1 nach rechts geschoben und während des Schusseintrages über Kopf bei dem Ende 32 des Wickelkörpers 8 abgezogen werden können. Zum Massenausgleich bezüglich des Zulaufrohres 6 ist in dem Antriebskörper 4 ein Ausgleichsstab 44 angeordnet.During operation, drive body 4 and stub shaft 11 rotate according to arrow 23, so that thread feed tube 6 rotates around body 4 and stub shaft 11 about the axis 25 indicated by dashed lines. In this case, 8 turns of thread 31 are placed on the winding body 8, which can be pushed through the teeth 18 of the separating disk 17 in FIG. 1 to the right and can be drawn off overhead at the end 32 of the winding body 8 during the weft insertion. A compensation rod 44 is arranged in the drive body 4 for mass compensation with respect to the inlet pipe 6.

Die Position der Separierscheibe 17 nach Fig. 2 entspricht der Winkelstellung von 900 der Hauptwelle der Webmaschine 61. Dabei ist die aus den fünf Windungen 76 bestehende Windungsgruppe 72 in Fig. 2 nach rechts gegen das Abzugsende 32 des Wickelkörpers 8 hin gerückt. Die folgende, aus den fünf Windungen 77 gebildete Windungsgruppe 73 befindet sich links neben der Gruppe 72. Die Gruppe 72 stammt aus der Zahnlücke 80 zwischen den Zähnen 18f,18a, die Gruppe 73 aus der zwischen den beiden Zähnen 18a,18b gebildeten Zahnlücke 78. Links neben dem Zahn 18b befindet sich eine dritte, aus den fünf Windungen 79 gebildete Windungsgruppe 74. Sie liegt in der von den Zähnen 18b,18c gebildeten Zahnlücke 81.The position of the separating disk 17 according to FIG. 2 corresponds to the angular position of 90 ° of the main shaft of the weaving machine 61. The winding group 72 consisting of the five turns 76 in FIG. 2 has moved to the right against the withdrawal end 32 of the winding body 8. The following turn group 73 formed from the five turns 77 is located to the left of group 72. Group 72 comes from tooth gap 80 between teeth 18f, 18a, group 73 from tooth gap 78 formed between two teeth 18a, 18b. To the left of tooth 18b is a third one the five turns 79 of the turn group 74. It lies in the tooth gap 81 formed by the teeth 18b, 18c.

Bei der Position nach Fig. 2 beginnt ein Schusseintrag (Pfei]e98). Die Haupteintragsdüse 81 erhält Druckluft, so dass der Schussfaden 7 in das von den Kettfäden 82 gebildete Webfach 83 eingetragen wird. Scheibe 17 läuft dabei in die Position nach Fig. 3 (125° Winkelstellung der Hauptwelle). Die Windungen 76 von Gruppe 72 sind bereits abgezogen, die Windungsgruppe 73 befindet sich durch die Vorwärtsbewegung des Zahnes 16b in der Stellung, wo zuvor Gruppe 72 war. Gruppe 74 ist noch am gleichen Ort wie zuvor. Es wird gerade die erste Windung der Gruppe 73 abgezogen.In the position according to FIG. 2, a weft insertion (Pfei] e98) begins. The main entry nozzle 81 receives compressed air, so that the weft thread 7 is inserted into the shed 83 formed by the warp threads 82. Disk 17 runs in the position shown in FIG. 3 (125 ° angular position of the main shaft). The turns 76 of group 72 have already been withdrawn, the turns group 73 is in the position where group 72 was previously due to the forward movement of tooth 16b. Group 74 is still in the same place as before. The first turn of group 73 is being drawn off.

Im weiteren Verlauf desselben Schusseintrages gelangt die Separierscheibe 17 in die Stellung nach Fig. 4 (1700 Drehwinkel der Hauptwelle). Gruppe 73 ist vollständig abgezogen, Gruppe 74 ist auf dem Wickelkörper 8 durch den Zahn 18c ganz nach rechts geschoben und steht zum Abziehen während des restlichen Schusseintrages zur Verfügung. Zugleich wird durch Zuführungsrohr 6 eine neue Fadengruppe 82 aufgelegt, von der jedoch erst zwei Windungen 83 aufgewickelt sind.In the further course of the same weft insertion the separating wheel 17 reaches the position of FIG. 4 (170 0 rotation angle of the main shaft). Group 73 is completely withdrawn, group 74 is pushed on the winding former 8 through the tooth 18c to the far right and is available for withdrawal during the remaining weft insertion. At the same time, a new thread group 82 is placed through the feed tube 6, of which, however, only two turns 83 are wound up.

Gegen Schluss desselben Schusseintrages gelangt die Separierscheibe 17 in die Position nach Fig. 5 (235° Hauptwellenwinkel). Die Windungsgruppe 74 aus Lücke 81 ist vollständig aufgebraucht, eine Schussfadenbremse 85 (Fig. 5) wird gelöst, so dass die unter Wirkung einer Feder nach oben (Pfeil 90) in die in Fig. 6 angedeutete Bremsstellung 85a gelangen kann. In ihr wird der Schussfaden 7 gegen den Führungsteil 22 gedrückt und zum Stillstand gebracht. Der Schusseintrag ist zu Ende.Towards the end of the same weft insertion, the separating disk 17 reaches the position shown in FIG. 5 (235 ° main shaft angle). The winding group 74 from gap 81 is completely used up, a weft brake 85 (FIG. 5) is released so that the upward movement (arrow 90) under the action of a spring can reach the braking position 85a indicated in FIG. 6. In it, the weft thread 7 is pressed against the guide part 22 and brought to a standstill. The shot entry is over.

Die Separierscheibe 17 ist inzwischen in die Stellung nach Fig. 6 (280° Hauptwellenwinkel) gedreht. In ihr ist der Zahn 18d aus dem Wickelkörper 8 ausgetaucht und legt: sich hinter die Windungsgruppe 82. Sie befindet sich in der Zahnlücke 99. Die Gruppe 82 wird von einer folgenden, zu Lücke 101 gehörenden Gruppe 96 durch den Zahn 18d getrennt. Gruppe 96 ist bei der Position nach Fig. 6 noch unvollständig und enthält erst die vier Windungen 97. Eine weitere Windung fehlt noch und wird anschliessend aufgelegt.The separating disk 17 has meanwhile been rotated into the position according to FIG. 6 (280 ° main shaft angle). In it, the tooth 18d has emerged from the winding body 8 and lies: behind the winding group 82. It is located in the tooth gap 99. The group 82 is separated from a subsequent group 96 belonging to gap 101 by the tooth 18d. Group 96 is still incomplete at the position according to FIG. 6 and only contains the four turns 97. Another turn is still missing and is then placed on.

Wie ersichtlich, wird in jede Zahnlücke jeweils eine Windungsgruppe von fünf Windungen eingelegt die dann durch den folgenden Zahn von der nächsten, ebenfalls fünf Windungen umfassenden Windungsgruppe separiert wird. In Fig. 2 ist zu sehen, dass nach Eintauchen des Zahnes 18a in das Innere des Wicklungskörpers 8 die zwei Gruppen 72, 73 aneinander rücken und für den Eintrag bereit stehen. Die dritte, für den selben Eintrag bestimmte Gruppe 74 wird erst im weiteren Verlauf durch den Zahn 18c in Fig. 2 nach rechts gerückt, bis sie schliesslich in der Position nach Fig. 4 zum Abwickeln zur Verfügung steht.As can be seen, a turn group of five turns is inserted into each tooth gap, which is then separated from the next turn group, which also comprises five turns, by the following tooth. In FIG. 2 it can be seen that after the tooth 18a has dipped into the interior of the winding body 8, the two groups 72, 73 move towards one another and are ready for the entry. The third group 74 intended for the same entry is only shifted to the right by the tooth 18c in FIG. 2 until it is finally available for unwinding in the position according to FIG. 4.

Die Zähne 18c,18f besitzen jeweils einen in Drehrichtung nach hinten gerichteten Haken 86, durch den in den Positionen nach Fig. 5,6 erzielt wird,dass die Windunglen der Gruppe 82 nicht vorzeitig nach rechts bewegt und abgezogen werden können, sondern erst, wenn der nächste Schusseintrag beginnt, und z.B. der mit dem Haken 86 versehene Zahn 18c in den Wickelkörper 8 eintaucht.The teeth 18c, 18f each have a hook 86 directed backwards in the direction of rotation, by means of which, in the positions according to FIGS the next Weft insertion begins and, for example, the tooth 18c provided with the hook 86 dips into the winding body 8.

Es können z.B. auch vier oder sechs Windungen zu einer Gruppe in ein und derselben Zahnlücke zusammengefasst werden. Dies richtet sich nach der erforderlichen Eintragslänge bzw. Webbreite W und dem Durchmesser D des Wickelkörpers 8 sowie nach der Drehzahl der Separierscheibe 17. Je kleiner der Durchmesser D umso mehr Windungen werden für ein und dieselbe Webbreite W gebraucht und umso rascher muss die Separierscheibe 17 angetrieben werden. Die Umlaufzahl des Wickelrohres 6 kann z.B. 6000 min sein entsprechend einer Webmaschinendrehzahl von beispielsweise 400 min bei einer Webbreite von 3,60 m und einem Durchmesser D des Wickelkörpers 8 von ca. 8 cm. Die zugehörige Drehzahl der Separierscheibe 17 wäre dann z.B. 200 min -1.For example, four or six turns can be combined to form a group in one and the same tooth gap. This depends on the required entry length or weaving width W and the diameter D of the winding body 8 and on the speed of the separating disc 17. The smaller the diameter D, the more turns are used for one and the same weaving width W and the faster the separating disc 17 has to be driven will. The number of revolutions of the winding tube 6 can be, for example, 6000 min, corresponding to a weaving machine speed of, for example, 400 min with a weaving width of 3.60 m and a diameter D of the winding body 8 of approximately 8 cm. The associated speed of the separating disk 17 would then be, for example, 2 00 min -1 .

Bei einer anderen Bauart besitzt die Separierscheibe 17 Zähne, die durch ein Planetenradgetriebe angetrieben und in Fig. 2 - 6 ständig in vertikaler Position gehalten werden (DE-OS 27 51 380). Bei einer anderen Ausführungsform werden beispielsweise nur jeweils zwei aufeinanderfolgende Windungsgruppen aus den beiden zugehörigen, aufeinanderfolgenden Zahnlücken für ein und denselben Schusseintrag gebraucht. Darauf folgen zwei weitere Windungsgruppen, die für einen weiteren Schusseintrag verwendet werden, usw.In another design, the separating disc has 17 teeth which are driven by a planetary gear and are constantly held in a vertical position in FIGS. 2-6 (DE-OS 27 51 380). In another embodiment, for example, only two successive turn groups from the two associated successive tooth gaps are used for one and the same weft insertion. This is followed by two further groups of turns which are used for a further weft insertion, etc.

Das Verfahren lässt sich auch anwenden)wenn mit der Webmaschine Mehrfarbenbetrieb durchgeführt werden soll und zwei oder mehrere Schussfadenspeicher parallel der Webmaschine vorgelegt sind, von denen wechselweise entsprechend dem Webprogramm Schussfaden abgezogen und eingetragen wird.The method can also be used ) if multi-color operation is to be carried out with the weaving machine and two or more weft thread stores are presented in parallel to the weaving machine, from which weft threads are alternately drawn and drawn in accordance with the weaving program will be carried.

Claims (5)

1. Verfahren für den Betrieb eines Schussfadenspeichers einer Webmaschine, mit einem Wickelkörper (8) zum Aufwickeln einer Anzahl von zu speichernden Fadenwindungen (76,77,79) und mit einer rotierenden, zwischen die Windungen mit ihren Zähnen (18) eingreifenden Separierscheibe (17) zum Verschieben der gespeicherten Windungen in Richtung der Achse (25) des Wickelkörpers (8), dadurch gekennzeichnet , dass eine der Schusslänge (Webbreite) (W) entsprechende Anzahl von auf dem Wickelkörper (8) gespeicherten Schussfadenwindungen (76, 77,79) von den Zähnen (18) der Separierscheibe (17) unterteilt und in mindestens zwei zwischen je zwei Zähnen (18) befindliche Zahnlücken (78,81) aufgeteilt wird, derart, dass während ein und desselben Schusseintrages Faden (7) aus mindestens zwei Zahnlücken (78,81) entnommen wird.1. A method for the operation of a weft thread store of a weaving machine, with a winding body (8) for winding up a number of thread turns to be stored (76, 77, 79) and with a rotating separating disc (17) engaging between the turns with its teeth (18) ) for shifting the stored turns in the direction of the axis (25) of the winding body (8), characterized in that a number of weft thread turns (76, 77, 79) stored on the winding body (8) corresponds to the weft length (weaving width) (W). divided by the teeth (18) of the separating disc (17) and divided into at least two tooth gaps (78, 81) between two teeth (18) in such a way that during one and the same weft insertion thread (7) from at least two tooth gaps ( 78.81) is taken. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Länge (W) für ein und denselben Schusseintrag von den Zähnen (18) in drei Gruppen (72 - 74) mit je fünf Windungen (76,77,79) aufgeteilt wird, und dass sämtliche drei Gruppen (72 - 74) mit insgesamt füngzehn Windungen während eines einzigen Schusseintrages abgezogen werden.2. The method according to claim 1, characterized in that the length (W) for one and the same weft insertion from the teeth (18) is divided into three groups (72-74), each with five turns (76, 77, 79), and that all three groups (72 - 74) with a total of fifteen turns are withdrawn during a single shot entry. 3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass bei Beginn des Schusseintrages erst ein Teil (Gruppen 72,73) der für die Schusslänge (W) benötigten Fadenwindungen auf den Wickelkörper (8) aufgewikkelt sind, während der restliche Teil (Gruppe 74) der benötigten Windungen während des Schusseintrages auf den Wickelkörper (8) aufgewickelt wird.3. The method according to claim 1 or 2, characterized in that at the beginning of the weft insertion, only a part (groups 72, 73) of the thread turns required for the weft length (W) are wound onto the winding body (8), while the remaining part (group 74) of the required turns is wound onto the winding body (8) during the weft insertion. 4. Schussfadenspeicher zur Durchführung des Verfahrens nach einem der Ansprüche 1 - 3, dadurch gekennzeichnet, dass der Antrieb (4) für das Wickeln der Windungen (76, 77,79) auf den Wickelkörper (8) und der Antrieb (15,16) der Separierscheibe (17)in einem solchen Verhältnis zueinander stehen, dass die Separierscheibe (17) während ein und desselben Schusseintrages um mindestens einen Zahn (18) vorwärts gedreht wird, derart, dass die Fadenlänge (W) für ein und denselben Schusseintrag aus mindestens zwei Zahnlücken (78,81) der Separierscheibe (17) entnommen wird.4. weft store for carrying out the method according to any one of claims 1-3, characterized in that the drive (4) for winding the turns (76, 77, 79) on the winding body (8) and the drive (15, 16) of the separating disc (17) are in such a relationship to one another that the separating disc (17) is rotated forwards by at least one tooth (18) during one and the same weft insertion, such that the thread length (W) for one and the same weft insertion consists of at least two Tooth gaps (78,81) of the separating disc (17) is removed. 5. Schussfadenspeicher nach Anspruch 4, dadurch gekennzeichnet, dass einzelne Zähne (18c,f) der Separierscheibe (17) mit einem entgegen der Drehrichtung (70) gerichteten, hakenförmigen Ende (86) versehen sind zum Verhindern des vorzeitigen Ueberspringens von Windungen vor dem Beginn eines folgenden Schusseintrages.5. weft store according to claim 4, characterized in that individual teeth (18c, f) of the separating disc (17) are provided with a hook-shaped end (86) directed against the direction of rotation (70) in order to prevent the premature jumping of turns before the start a following weft entry.
EP84810515A 1984-10-24 1984-10-24 Method for preparing the weft supply in looms, and storage device for applying the same Withdrawn EP0179178A1 (en)

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EP84810515A EP0179178A1 (en) 1984-10-24 1984-10-24 Method for preparing the weft supply in looms, and storage device for applying the same
JP23550485A JPS61102455A (en) 1984-10-24 1985-10-23 Operation of weft yarn stocker of loom and weft yarn stocker

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EP84810515A EP0179178A1 (en) 1984-10-24 1984-10-24 Method for preparing the weft supply in looms, and storage device for applying the same

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EP0250359A1 (en) * 1986-06-16 1987-12-23 GebràœDer Sulzer Aktiengesellschaft Weft yarn storage device for looms
EP0635592A1 (en) * 1993-07-19 1995-01-25 L.G.L. ELECTRONICS S.p.A. Weft feeder with magnet supporting plate provided with an annular groove acting as element for centering and retaining the drum and as thread stopping barrier
EP2889249A1 (en) * 2013-12-20 2015-07-01 Rieter CZ s.r.o. Method for removal of yarn, especially faulty yarn, from inter-storage of yarn at operating unit of textile machine and device for carrying out the method

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JP2722430B2 (en) * 1993-05-31 1998-03-04 リンナイ 株式会社 Cooking equipment

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FR2371370A1 (en) * 1976-11-17 1978-06-16 Rueti Te Strake Bv DEVICE FOR FORMING A POWER WINDING WITH A WIRE COMING FROM A RESERVE
FR2428603A1 (en) * 1978-06-15 1980-01-11 Rueti Te Strake Bv DEVICE FOR FORMING A COIL FOR FEEDING A THREAD PROVIDED BY A THREAD STOCK
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DE2039716A1 (en) * 1969-08-09 1971-04-08 Teijin Ltd Method and device for measuring and inserting the weft thread
FR2371370A1 (en) * 1976-11-17 1978-06-16 Rueti Te Strake Bv DEVICE FOR FORMING A POWER WINDING WITH A WIRE COMING FROM A RESERVE
FR2428603A1 (en) * 1978-06-15 1980-01-11 Rueti Te Strake Bv DEVICE FOR FORMING A COIL FOR FEEDING A THREAD PROVIDED BY A THREAD STOCK
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FR2499045A1 (en) * 1981-02-02 1982-08-06 Rueti Te Strake Bv DEVICE FOR FORMING A STORAGE COIL FROM A THREAD SUPPLIED BY A WIRE FEED
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Publication number Priority date Publication date Assignee Title
EP0250359A1 (en) * 1986-06-16 1987-12-23 GebràœDer Sulzer Aktiengesellschaft Weft yarn storage device for looms
US4781225A (en) * 1986-06-16 1988-11-01 Sulzer Brothers Limited Weft yarn store for a loom
EP0635592A1 (en) * 1993-07-19 1995-01-25 L.G.L. ELECTRONICS S.p.A. Weft feeder with magnet supporting plate provided with an annular groove acting as element for centering and retaining the drum and as thread stopping barrier
EP2889249A1 (en) * 2013-12-20 2015-07-01 Rieter CZ s.r.o. Method for removal of yarn, especially faulty yarn, from inter-storage of yarn at operating unit of textile machine and device for carrying out the method
CN104787623A (en) * 2013-12-20 2015-07-22 里特捷克有限公司 Method for removal of yarn, especially faulty yarn, from inter-storage of yarn at operating unit of textile machine and device for carrying out method
US9884739B2 (en) 2013-12-20 2018-02-06 Rieter Cz S.R.O. Method for removal of yarn, especially faulty yarn, from inter-storage of yarn at operating unit of textile machine and device for carrying out the method
CN104787623B (en) * 2013-12-20 2020-02-21 里特捷克有限公司 Method for removing a yarn from an intermediate storage of yarn and related device

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