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EP0142591B1 - Weft yarn storage unit for looms - Google Patents

Weft yarn storage unit for looms Download PDF

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Publication number
EP0142591B1
EP0142591B1 EP83810545A EP83810545A EP0142591B1 EP 0142591 B1 EP0142591 B1 EP 0142591B1 EP 83810545 A EP83810545 A EP 83810545A EP 83810545 A EP83810545 A EP 83810545A EP 0142591 B1 EP0142591 B1 EP 0142591B1
Authority
EP
European Patent Office
Prior art keywords
storage unit
balloon
weft yarn
winding reel
breaker housing
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
Application number
EP83810545A
Other languages
German (de)
French (fr)
Other versions
EP0142591A1 (en
Inventor
Gianni Riboli
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.)
Maschinenfabrik Sulzer Rueti AG
Original Assignee
Maschinenfabrik Sulzer Rueti 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 Maschinenfabrik Sulzer Rueti AG filed Critical Maschinenfabrik Sulzer Rueti AG
Priority to DE8383810545T priority Critical patent/DE3372297D1/en
Priority to EP83810545A priority patent/EP0142591B1/en
Priority to US06/672,142 priority patent/US4633917A/en
Priority to JP59244714A priority patent/JPH06104943B2/en
Publication of EP0142591A1 publication Critical patent/EP0142591A1/en
Application granted granted Critical
Publication of EP0142591B1 publication Critical patent/EP0142591B1/en
Expired 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

Definitions

  • the invention relates to a weft store for a loom, with a winding body having radially adjustable peripheral elements, which is arranged eccentrically to a fixed axis of the weft store, and a balloon breaker for the weft to be removed from the winding body and to be inserted into the loom of the loom.
  • the object of the invention is to create a weft thread store which is particularly improved in this regard.
  • the invention resides in a circular thread guide element arranged on the thread take-off end face of the winding body, concentrically arranged relative to the balloon breaker and to the fixed axis of the weft thread store, for generating constant circumferential distance between the winding body and the balloon breaker.
  • the centrifugal force arising in the weft thread drawn off and coming into the loom, as the tests have shown, can be kept essentially constant.
  • the weft thread then no longer strikes the balloon crusher but instead runs tangentially along the inner circumference of the balloon crusher with the constant centrifugal force.
  • Even sensitive weft yarns, such as B. glass fiber materials can then be entered into the loom of the loom without damage.
  • the resulting tissue contains no tissue defects, e.g. B. more visible, discontinuous places that would be due to fibril breaks in the weft.
  • an intermediate disk 18 is fastened and, by means of a screw 19 arranged eccentrically to axis 3 and a cover 20, a thread guide disk 21 shown broken off towards the center in FIG. Its rear part 22 is extended around the carrier disk 18.
  • the winding body 25 is enclosed by a balloon breaker 26 arranged concentrically to the axis 3, by means of which the balloon 27 of the weft thread 16 drawn off is delimited.
  • the weft thread passes through an eyelet 52 of the schematically indicated weaving machine 53 into the shed 55 formed by the warp threads 54.
  • the thread guide disk 21 ensures that the distance D between the disk 21 and the balloon breaker 26 - as is particularly evident Fig. 2 shows - is essentially the same size over the entire circumference.
  • the thread balloon 27 therefore slides at 34 on the guide disk 21 and at 35 on the inner circumference 37 of the balloon breaker 26.
  • the centrifugal force that occurs in the balloon 27 changes at most only slightly during thread withdrawal. This means that even sensitive yarns can be processed, e.g. glass fiber material.
  • the constant centrifugal force in the thread balloon 27 prevents the drawn weft thread in the region of the balloon 27 from striking the inner circumference 37 of the balloon breaker 26 with uneven strength, as a result of which breaks in the individual fibrils of the weft thread 16 and thus tissue defects can be prevented.
  • the winding body 25 consisting of the parts 2, 5 can stand still and the weft thread 16 is fed through a tubular winder (flyer) 39, indicated in dashed lines in FIG. 2 and rotating according to arrow 38.
  • a ring can also be used as the thread guide member on the take-off side 17 of the winding body 25, the shape of which can approximately correspond to the part of the disk 21 shown in FIG. 2.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)

Description

Die Erfindung betrifft einen Schussfadenspeicher für eine Webmaschine, mit einem radial verstellbare Umfangselemente aufweisenden Wickelkörper, der exzentirsch zu einer ortsfesten Achse des Schussfadenspeichers angeordnet ist, und einem Ballonbrecher für den von dem Wickelkörper abzuziehenden, in das Webfach der Webmaschine einzutragenden Schussfaden.The invention relates to a weft store for a loom, with a winding body having radially adjustable peripheral elements, which is arranged eccentrically to a fixed axis of the weft store, and a balloon breaker for the weft to be removed from the winding body and to be inserted into the loom of the loom.

Bei einem bisherigen Schussfadenspeicher dieser Art (DE-OS 29 20 629 = US-PS 4 238 080 / TS 263) ist der Wickelkörper während des Betriebes stationär mehr oder weniger exzentrisch zu der ortsfesten Schussfadenspeicher-Achse einstellbar, je nachdem, welche Radialposition die verstellbaren Umfangselemente einnehmen. Wird der Speicher etwa entsprechend DE-PS 20 28 543 = US-PS 3 761 031 / T. 366, Bezugszeichen 101 auf der Fadenabzugsseite in Verbindung mit einem Ballonbrecher benutzt - was die Regel ist -, so können in dem Fadenballon des abgezogenen Schussfadens ungleich starke Zentrifugalkräfte entstehen. Der Schussfaden wird dann ständig verschieden stark gegen den Ballonbrecher geschlagen. Je nach Schussgarn können diese unkonstanten Zentrifugalkräfte sich schädlich auf den Faden auswirken. Insbesondere können z.B. einzelne Fibrillen eines Glasfaser-Schussgarnes brechen, wodurch Gewebefehler entstehen können.In a previous weft thread store of this type (DE-OS 29 20 629 = US-PS 4 238 080 / TS 263), the winding body can be adjusted more or less eccentrically to the stationary weft store axis during operation, depending on which radial position the adjustable Take circumferential elements. If the memory is used approximately according to DE-PS 20 28 543 = US-PS 3 761 031 / T. 366, reference number 101 on the thread take-off side in connection with a balloon breaker - which is the rule - then the thread balloon of the drawn-off weft thread can be unequal strong centrifugal forces arise. The weft thread is then constantly struck at the balloon breaker to varying degrees. Depending on the weft, these inconsistent centrifugal forces can have a detrimental effect on the thread. In particular, e.g. individual fibrils of a glass fiber weft break, which can result in tissue defects.

Der Erfindung liegt die Aufgabe zugrunde, einen besonders in dieser Hinsicht verbesserten Schussfadenspeicher zu schaffen.The object of the invention is to create a weft thread store which is particularly improved in this regard.

Die Erfindung liegt in einem auf der Fadenabzugs-Stirnseite des Wickelkörpers angeordneten, kreisförmigen, relativ zu dem Ballonbrecher und zur ortsfesten Achse des Schussfadenspeichers konzentrisch angeordneten Fadenführungsglied zum Erzeugen konstanter Umfangsdistanz zwischen Wickelkörper und Ballonbrecher.The invention resides in a circular thread guide element arranged on the thread take-off end face of the winding body, concentrically arranged relative to the balloon breaker and to the fixed axis of the weft thread store, for generating constant circumferential distance between the winding body and the balloon breaker.

Auf diese Weise lässt sich die in dem abgezogenen und zum Eintrag in der Webmaschine kommenden Schussfaden entstehende Zentrifugalkraft - wie die Versuche ergeben haben - im wesentlichen konstant halten. Der Schussfaden schlägt dann nicht mehr stossförmig gegen den Ballonbrecher, sondern läuft mit der konstanten Zentrifugalkraft tangierend entlang dem Innenumfang des Ballonbrechers. Auch empfindliche Schussgarne, wie z. B. Glasfasermaterialien, lassen sich dann ohne Schaden in das Webfach der Webmaschine eintragen. Das entstehende Gewebe enthält keine Gewebefehler, z. B. sichtbare, diskontinuierliche Stellen mehr, die auf Fibrillenbrüche des Schussfadens zurückzuführen wären.In this way, the centrifugal force arising in the weft thread drawn off and coming into the loom, as the tests have shown, can be kept essentially constant. The weft thread then no longer strikes the balloon crusher but instead runs tangentially along the inner circumference of the balloon crusher with the constant centrifugal force. Even sensitive weft yarns, such as B. glass fiber materials can then be entered into the loom of the loom without damage. The resulting tissue contains no tissue defects, e.g. B. more visible, discontinuous places that would be due to fibril breaks in the weft.

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

  • Fig. 1 ist eine Seitenansicht eines erfindungsgemäss ausgebildeten Schussfadenspeichers, teilweise im Schnitt und schematisiert,
  • Fig 2 ist eine zugehörige Stirnansicht in Richtung A in Fig. 1 und
  • Fig. 3 zeigt ein Detail aus Fig. 1 in grösserem Maßstab.
Further features emerge from the following description of exemplary embodiments in conjunction with the drawing and the claims.
  • 1 is a side view of a weft thread store designed according to the invention, partly in section and schematized,
  • Fig. 2 is an associated end view in the direction A in Fig. 1 and
  • Fig. 3 shows a detail from Fig. 1 on a larger scale.

In einem ortsfest angeordneten Gestell 1 ist eine eine Achse 60 aufweisende Wickeltrommel 2 um eine ortsfeste Achse 3 rotierend (Pfeil 4) angeordnet. Auf der in Fig. 1,2 unteren Seite der Wickeltrommel 2 sind mehrere, mit der Trommel 2 rotierende Fadenträger-Bügel 5 angebracht. Der Wickelkörper besteht somit aus der Wickeltrommel 2 und den Trägerbügeln 5, die gemeinsam um die Achse 3 rotieren. Die einen Enden 6 der Trägerbüger5 ragen in schlitze 7 einer rotierenden Grundscheibe 8, die anderen Enden 9 der Bügel 5 treten in Bohrungen 11 der Wickeltrommel 2 ein und sind mittels Klemmschrauben 51 radial entsprechend den Pfeilen 12 einstellbar. Dadurch lässt sich auch die Trägerpartie 13 der Bügel 5, die im wesentlichen parallel zur Achse 3 verläuft, radial einstellen, so dass der Wickelumfang des aus den Teilen 2,5 bestehenden Wickelkörpers 25 verstellbar wird. Dadurch lässt sich auch die Länge einer Windung 14 des von Spule 15 kommenden Schussfaden 16 einstellen.In a stationary frame 1, a winding drum 2 having an axis 60 is arranged to rotate about a stationary axis 3 (arrow 4). On the lower side of the winding drum 2 in FIG. 1, a plurality of thread carrier brackets 5 rotating with the drum 2 are attached. The winding body thus consists of the winding drum 2 and the support brackets 5, which rotate together about the axis 3. The one ends 6 of the support brackets 5 protrude into slots 7 of a rotating base plate 8, the other ends 9 of the brackets 5 enter bores 11 of the winding drum 2 and can be adjusted radially according to the arrows 12 by means of clamping screws 51. As a result, the carrier part 13 of the brackets 5, which runs essentially parallel to the axis 3, can also be adjusted radially, so that the winding circumference of the winding body 25 consisting of the parts 2, 5 can be adjusted. This also allows the length of a turn 14 of the weft thread 16 coming from the bobbin 15 to be set.

Auf der Stirnfläche 17 der Wickeltrommel 2 ist eine Zwischenscheibe 18 und darauf mittels einer exzentrisch zu Achse 3 angeordneten Schraube 19 und eines Deckels 20 eine in Fig. 2 zur Mitte hin abgebrochen gezeichnete Fadenführungsscheibe 21 befestigt. Ihr hinterer Teil 22 ist um die Trägerscheibe 18 herum verlängert.On the end face 17 of the winding drum 2, an intermediate disk 18 is fastened and, by means of a screw 19 arranged eccentrically to axis 3 and a cover 20, a thread guide disk 21 shown broken off towards the center in FIG. Its rear part 22 is extended around the carrier disk 18.

Der Wickelkörper 25 ist von einem konzentrisch zur Achse 3 angeordneten Ballonbrecher 26 umschlossen, durch den der Ballon 27 des abgezogenen Schussfadens 16 begrenzt wird. Der Schussfaden gelangt während des Webbetriebes durch eine Oese 52 der schematisch angedeuteten Webmaschine 53 in das von den Kettfäden 54 gebildete Webfach 55.The winding body 25 is enclosed by a balloon breaker 26 arranged concentrically to the axis 3, by means of which the balloon 27 of the weft thread 16 drawn off is delimited. During the weaving operation, the weft thread passes through an eyelet 52 of the schematically indicated weaving machine 53 into the shed 55 formed by the warp threads 54.

Auf dem Umfang 25 des Wickelkörpers 2 ist ein parallel zur Achse 3 verlaufender Schlitz 29 vorgesehen, durch welchen mit der Wickeltrommel 2 umlaufende Stifte 31 austreten können. Während ihres Umlaufes mit der Wickeltrommel 2 werden die Stifte 31 entsprechend Pfeil 32 bewegt, so dass sie bei Position 31 a aus dem Umfang der Wickeltrommel 2 austreten und über Position 31 wieder eintreten und somit vom Umfang verschwinden. Dadurch kann das Fadenwindungspaket 33 in Fig. 1 nach rechts über Kopf abgezogen und in das Webfach 55 eingetragen werden. Während des Fadenabzuges werden links von Position 31a neue Windungen 14b auf den Wickelkörper 25 aufgewickelt.Provided on the circumference 25 of the winding body 2 is a slot 29 running parallel to the axis 3, through which slots 31 rotating with the winding drum 2 can emerge. During their rotation with the winding drum 2, the pins 31 are moved according to arrow 32, so that they emerge from the circumference of the winding drum 2 at position 31 a and enter again via position 31 and thus disappear from the circumference. As a result, the thread winding package 33 in FIG. 1 can be pulled off to the right overhead and entered in the shed 55. During the thread take-off, new turns 14b are wound onto the winding body 25 to the left of position 31a.

Durch die Fadenführungsscheibe 21 wird dafür gesorgt, dass die Distanz D zwischen Scheibe 21 und Ballonbrecher 26 - wie sich besonders aus Fig. 2 ergibt - auf dem ganzen Umfang im wesentlichen gleich gross ist. Der Fadenballon 27 gleitet daher bei 34 auf der Führungsscheibe 21 und bei 35 auf dem Innenumfang 37 des Ballonbrechers 26. Die Zentrifugalkraft, die im Ballon 27 auftritt, ändert sich während des Fadenabzuges höchstens geringfügig. Dadurch können auch empfindliche Garne verarbeitet werden, z.B. Glasfasermaterial. Durch die konstante Zentrifugalkraft im Fadenballon 27 wird vermieden, dass der abgezogene Schussfaden im Bereich des Ballons 27 in ungleicher Stärke an den Innenumfang 37 des Ballonbrechers 26 schlagen kann, wodurch Brüche der einzelnen Fibrillen des Schussfadens 16 und damit Gewebefehler verhindert werden können.The thread guide disk 21 ensures that the distance D between the disk 21 and the balloon breaker 26 - as is particularly evident Fig. 2 shows - is essentially the same size over the entire circumference. The thread balloon 27 therefore slides at 34 on the guide disk 21 and at 35 on the inner circumference 37 of the balloon breaker 26. The centrifugal force that occurs in the balloon 27 changes at most only slightly during thread withdrawal. This means that even sensitive yarns can be processed, e.g. glass fiber material. The constant centrifugal force in the thread balloon 27 prevents the drawn weft thread in the region of the balloon 27 from striking the inner circumference 37 of the balloon breaker 26 with uneven strength, as a result of which breaks in the individual fibrils of the weft thread 16 and thus tissue defects can be prevented.

Bei einer anderen Bauart kann der aus den Teilen 2,5 bestehende Wickelkörper 25 stillstehen und der Schussfaden 16 wird durch einen in Fig. 2 gestrichelt angedeuteten, entsprechend Pfeil 38 rotierenden, rohrförmigen Wickler (Flyer) 39 zugeführt werden. Statt der durchgehenden Scheibe 21 kann als Fadenführungsglied auf der Abzugsseite 17 des Wickelkörpers 25 auch ein Ring verwendet werden, dessen Gestalt etwa dem in Fig. 2 dargestellten Teil der Scheibe 21 entsprechen kann.In another type of construction, the winding body 25 consisting of the parts 2, 5 can stand still and the weft thread 16 is fed through a tubular winder (flyer) 39, indicated in dashed lines in FIG. 2 and rotating according to arrow 38. Instead of the continuous disk 21, a ring can also be used as the thread guide member on the take-off side 17 of the winding body 25, the shape of which can approximately correspond to the part of the disk 21 shown in FIG. 2.

Claims (3)

1. A weft yarn storage unit for looms comprising a winding reel (25) having radially adjustable peripheral elements (5) and being arranged eccentrically with respect to a stationary axis (3) of the weft yarn storage unit, and a balloon-breaker housing (26) for the weft yarn (16) to be withdrawn from the winding reel (25) and inserted into the weaving shed of the loom, characterized by a circular yarn guide member (21) arranged concentrically in relation to the balloon-breaker housing (26) and to the stationary axis (3) of the weft yarn storage unit upon the yarn withdrawal end face (17) of the winding reel (25) for producing a constant peripheral distance (D) between winding reel (25) and balloon-breaker housing (26).
2. A storage unit according to claim 1, characterized in that the winding reel (25) consists of a drum-shaped component (2) and several yarn support rods (5) radially adjustable in relation thereto, wherein a disk (21) arranged concentrically to the balloon-breaker housing (26) is mounted on the end face (1) of the drum-shaped component (2) as a thread guide member.
3. A storage unit according to claim 1, characterized in that the winding reel (25) is arranged to eccentrically rotate about the stationary axis (3) of the weft yarn storage unit and in that the balloon-breaker housing (26) is arranged to be rotationally fixed relative to the axis (3).
EP83810545A 1983-11-22 1983-11-22 Weft yarn storage unit for looms Expired EP0142591B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE8383810545T DE3372297D1 (en) 1983-11-22 1983-11-22 Weft yarn storage unit for looms
EP83810545A EP0142591B1 (en) 1983-11-22 1983-11-22 Weft yarn storage unit for looms
US06/672,142 US4633917A (en) 1983-11-22 1984-11-16 Weft thread storage device for a weaving machine
JP59244714A JPH06104943B2 (en) 1983-11-22 1984-11-21 Weft storage device for loom

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP83810545A EP0142591B1 (en) 1983-11-22 1983-11-22 Weft yarn storage unit for looms

Publications (2)

Publication Number Publication Date
EP0142591A1 EP0142591A1 (en) 1985-05-29
EP0142591B1 true EP0142591B1 (en) 1987-07-01

Family

ID=8191576

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83810545A Expired EP0142591B1 (en) 1983-11-22 1983-11-22 Weft yarn storage unit for looms

Country Status (4)

Country Link
US (1) US4633917A (en)
EP (1) EP0142591B1 (en)
JP (1) JPH06104943B2 (en)
DE (1) DE3372297D1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3562083D1 (en) * 1985-01-18 1988-05-11 Sulzer Ag Storage-device for thread-like material
DE3601586C1 (en) * 1986-01-21 1987-05-27 Memminger Gmbh Thread storage and delivery device, in particular for textile machines
DE3864442D1 (en) * 1987-04-24 1991-10-02 Sulzer Ag Weft thread store with automatic thread dimension for weaving machine.
IT1230562B (en) * 1988-10-14 1991-10-28 Roy Electrotex Spa WINDING GROUP OF THE WEFT RESERVE DEVELOPING A VARIABLE SPIRA ADJUSTABLE WITH A SINGLE INTERVENTION, FOR USE IN WEAVING-WEAVING METERS FOR WEAVING FRAMES
IT1247886B (en) * 1991-05-03 1995-01-05 Candia Ets WEFT SUPPLIER FOR FRAMES WITHOUT SHUTTLE
JP2500524Y2 (en) * 1991-05-10 1996-06-05 株式会社オーゼン Bearings for small motors
NL9400726A (en) * 1994-05-03 1995-12-01 Te Strake Bv Pre-unwinding device for use with a spoolless loom and loom provided with such a device.
US6915831B2 (en) * 2000-07-21 2005-07-12 Hunter Douglas Inc. Drum for wrapping a cord
ITTO20010569A1 (en) * 2001-06-14 2002-12-14 Lgl Electronics Spa DEVICE OF REGULARIZATION OF THE DEVELOPMENT OF THE SPOOLS OF FILODELLA THE WEFT RESERVE, FROM THE DRUM OF THE WEFT FEEDERS FOR YOU

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH523196A (en) * 1970-05-14 1972-05-31 Sulzer Ag Storage device for thread-like material
CH569655A5 (en) * 1973-09-25 1975-11-28 Sulzer Ag
DE2743749C3 (en) * 1977-09-29 1984-10-11 SIPRA Patententwicklungs-und Beteiligungsgesellschaft mbH, 7000 Stuttgart Yarn storage and delivery device for textile machines
NL7806469A (en) * 1978-06-15 1979-12-18 Rueti Te Strake Bv DEVICE FOR FORMING A STOCK WRAP FROM A WIRE LEADED FROM A STOCK OF YARN STOCK.
DE2839437C2 (en) * 1978-09-11 1980-04-24 Ab Iro, Ulricehamn (Schweden) Yarn storage and delivery device
CS272202B2 (en) * 1981-10-13 1991-01-15 Saurer Diederichs Sa Doser and weft meter for shuttless looms

Also Published As

Publication number Publication date
US4633917A (en) 1987-01-06
JPH06104943B2 (en) 1994-12-21
EP0142591A1 (en) 1985-05-29
DE3372297D1 (en) 1987-08-06
JPS60185845A (en) 1985-09-21

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