EP0165327A1 - Guideway for the weft inserter of a loom, especially for a dummy shuttle loom - Google Patents

Guideway for the weft inserter of a loom, especially for a dummy shuttle loom Download PDF

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Publication number
EP0165327A1
EP0165327A1 EP84107018A EP84107018A EP0165327A1 EP 0165327 A1 EP0165327 A1 EP 0165327A1 EP 84107018 A EP84107018 A EP 84107018A EP 84107018 A EP84107018 A EP 84107018A EP 0165327 A1 EP0165327 A1 EP 0165327A1
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EP
European Patent Office
Prior art keywords
guide
projectile
loom
leg
reed
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.)
Granted
Application number
EP84107018A
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German (de)
French (fr)
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EP0165327B1 (en
Inventor
Franz Bürer
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 EP84107018A priority Critical patent/EP0165327B1/en
Priority to DE8484107018T priority patent/DE3473481D1/en
Priority to US06/741,002 priority patent/US4628968A/en
Publication of EP0165327A1 publication Critical patent/EP0165327A1/en
Application granted granted Critical
Publication of EP0165327B1 publication Critical patent/EP0165327B1/en
Expired legal-status Critical Current

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    • 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
    • D03D47/27—Drive or guide mechanisms for weft inserting
    • D03D47/277—Guide mechanisms

Definitions

  • the invention relates to a guide device for weft insertion elements for weaving machines, in particular for rapier projectile weaving machines, with longitudinally alternating guide supports and guide hooks, each of which form a guide tooth complementarily in pairs, and wherein a guide support consists of a longer one, closer to the reed and a shorter one, from the reed further away leg exists.
  • CH-PS 465 5211 It occurs in the known projectile guiding device (CH-PS 465 521) that when the device is immersed in the shed, individual warp threads cross within the guide tooth, which is open at the top. The warp thread is locally overstretched.
  • the invention has for its object to provide a guide device of the type defined in which a crossing of a warp thread of the type mentioned above is not possible and thus its overextension is avoided.
  • This object is achieved according to the invention by the features specified in the characterizing part of claim 1.
  • a drawer 1 carries a projectile guide device 2, which consists of a number of guide supports 3 and guide hooks 4, which are cast in a block 5.
  • the guide supports and guide hooks alternate with one another in the longitudinal direction of the guide device and each form a complementary guide tooth in pairs.
  • the guide support 3 and the guide hooks 4 together form a guide channel 8 for a projectile 9, which is a weft thread 10 drags with him.
  • the drawer 1 with the guide device 2 is located before the weft thread 10 stops by a reed 11 in a shed 12, which is formed by the warp threads 13 and 14.
  • the drawer 1 moves the projectile guide device 2 between the fully drawn and the dashed position 2 '.
  • the contours of a guide support 15a or a guide hook 15b of a guide tooth 15 are first drawn in with dash-dotted lines in FIG. 2.
  • the guide support 15a consists of a longer leg 15c closer to the reed and a shorter leg 15d located farther from the reed, with a valley 15e as a transition between the two.
  • the projectile is supported in three ways: on the inside of the longer leg 15c, on the shorter leg 15d and on the upper inner edge of the guide hook 15b.
  • the guide hook 15b is mainly marked through a long, narrow neck 15f, so that a large clear width-16 remains within the guide tooth.
  • An adjacent guide tooth is designated 17.
  • a warp thread 19 is located in an alley 18 of the guide tooth 15, and a warp thread 21 is located in an alley 20 between the guide tooth 15 and the next guide tooth 17 2 it can happen that the warp thread 21 from the alley 20 hooks behind the shorter leg 15d of the guide support 15a and passes through the tail 15e into the alley 18, where the correctly running warp thread 19 is located.
  • the deviating warp thread is shown in dash-dot lines and designated 21 '. This leads to an undesirable overstretching of the different warp thread.
  • the shorter leg 15d of the guide support 15a is removed from each guide tooth 15, so that only one single-leg guide support 15c remains for the projectile near the reed.
  • the neck 15f of the guide hook 15b is widened towards the guide channel 8 and has a support surface 22 for the projectile. Both measures prevent the warp thread from being overstretched when it jumps into an adjacent alley.

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

Abstract

Die Führungsvorrichtung für Schussfadeneintragsorgane für Greiferprojektil-Webmaschinen besitzt Führungsstützen (3) und Führungshaken (4), die jeweils paarweise komplementär einen Führungszahn (6) bilden. Die Führungsstütze (3) ist einschenkelig angeführt. Der Führungshaken (4) ist zum Führungskanal (8) hin verbreitert um eine Stützfläche (22) für das Projektil (9) zu bilden. Die Ausführung verhindert, dass ein Kettfaden beim eventuellen Ueberspringen aus seiner Gasse in eine benachbarte Gasse überdehnt wird.The guide device for weft insertion elements for rapier projectile weaving machines has guide supports (3) and guide hooks (4), each of which form a guide tooth (6) in complementary pairs. The guide support (3) is one-legged. The guide hook (4) is widened towards the guide channel (8) to form a support surface (22) for the projectile (9). The design prevents a warp thread from being overstretched when it jumps out of its alley into an adjacent alley.

Description

Die Erfindung betrifft eine Führungsvorrichtung für Schussfadeneintragsorgane für Webmaschinen, insbesondere für Greiferprojektil-Webmaschinen, mit sich in Längsrichtung abwechselnden Führungsstützen und Führungshaken, die jeweils paarweise komplementär einen Führungszahn bilden, und wobei eine Führungsstütze aus einem längeren, dem Riet nähergelegenen und einem kürzeren, vom Riet weiter entfernt gelegenen Schenkel besteht.The invention relates to a guide device for weft insertion elements for weaving machines, in particular for rapier projectile weaving machines, with longitudinally alternating guide supports and guide hooks, each of which form a guide tooth complementarily in pairs, and wherein a guide support consists of a longer one, closer to the reed and a shorter one, from the reed further away leg exists.

Es kommt bei der bekannten Projektilführungsvorrichtung (CH-PS 465 521) vor, dass beim Eintauchen der Vorrichtung ins Webfach einzelne Kettfäden innerhalb des nach oben offenen Führungszahnes kreuzen. Der Kettfaden wird dabei örtlich überdehnt.It occurs in the known projectile guiding device (CH-PS 465 521) that when the device is immersed in the shed, individual warp threads cross within the guide tooth, which is open at the top. The warp thread is locally overstretched.

Der Erfindung liegt die Aufgabe zugrunde eine Führungsvorrichtung der eingangs definierten Art zu schaffen bei der ein Kreuzen eines Kettfadens der obenerwähnten Art nicht möglich ist und somit seine Ueberdehnung vermieden wird. Diese Aufgabe wird gemäss der Erfindung durch die im Kennzeichen des Anspruchs 1 angegebenen Merkmale gelöst.The invention has for its object to provide a guide device of the type defined in which a crossing of a warp thread of the type mentioned above is not possible and thus its overextension is avoided. This object is achieved according to the invention by the features specified in the characterizing part of claim 1.

Ein Ausführungsbeispiel des Erfindungsgegenstandes ist nachfolgend anhand der Zeichnung beschrieben. Es ist:

  • Fig. i eine Seitenansicht einer Projektilführungsvorrichtung gemäss der Erfindung;
  • Fig. 2 eine Draufsicht in der Perspektive eines Teiles der Vorrichtung.
An embodiment of the subject matter of the invention is described below with reference to the drawing. It is:
  • I shows a side view of a projectile guiding device according to the invention;
  • Fig. 2 is a plan view in perspective of part of the device.

Nach Fig. l trägt eine Lade 1 eine Projektilführungsvorrichtung 2, die aus einer Anzahl Führungsstützen 3 und Führungshaken 4 besteht, die in einem Block 5 eingegossen sind. Wie deutlich in Fig. 2 zu sehen ist, wechseln die Führungsstützen und Führungshaken einander in Längsrichtung der Führungsvorrichtung ab und bilden jeweils paarweise komplementär einen Führungszahn 6. Die Führungsstütze 3 und die Führungshaken 4 bilden zusammen einen Führungskanal 8 für ein Projektil 9, das einen Schussfaden 10 mit sich schleppt. Die Lade 1 mit der Führungsvorrichtung 2 befindet sich vor dem Anschlag des Schussfadens 10 durch ein Riet 11 in einem Webfach 12, das durch die Kettfäden 13 und 14 gebildet wird. Die Lade 1 bewegt die Projektilführungsvorrichtung 2 zwischen der voll gezeichneten und der gestrichelt gezeichneten Lage 2'.According to FIG. 1, a drawer 1 carries a projectile guide device 2, which consists of a number of guide supports 3 and guide hooks 4, which are cast in a block 5. As can be clearly seen in FIG. 2, the guide supports and guide hooks alternate with one another in the longitudinal direction of the guide device and each form a complementary guide tooth in pairs. The guide support 3 and the guide hooks 4 together form a guide channel 8 for a projectile 9, which is a weft thread 10 drags with him. The drawer 1 with the guide device 2 is located before the weft thread 10 stops by a reed 11 in a shed 12, which is formed by the warp threads 13 and 14. The drawer 1 moves the projectile guide device 2 between the fully drawn and the dashed position 2 '.

Zum besseren Verständnis des Erfindungsgegenstandes sind zunächst in Fig. 2 mit strichpunktierten Linien die Konturen einer Führungsstütze 15a bzw. eines Führungshakens 15b eines Führungszahnes 15 gemäss dem Stand der Technik eingezeichnet. Wie ersichtlich besteht die Führungsstütze 15a aus einem längeren, dem Riet nähergelegenen Schenkel 15c und einem kürzeren, vom Riet entfernter gelegenen Schenkel 15d, mit einem Tal 15e als Uebergang zwischen beiden. Das Projektil wird dreifach gestützt: An der Innenseite des längeren Schenkels 15c, am kürzeren Schenkel 15d und an der oberen Innenkante des Führungshakens 15b. Der Führungshaken 15b ist in der Hauptsache gekennzeichnet durch einen langen, schmalen Hals 15f, so dass eine grosse lichte Weite-16 innerhalb des Führungszahnes verblieben ist. Ein benachbarter Führungszahn ist mit 17 bezeichnet. In einer Gasse 18 des Führungszahnes 15 befindet sich ein Kettfaden 19, in einer Gasse 20 zwischen dem Führungszahn 15 und dem nächsten Führungszahn 17 befindet sich ein Kettfaden 21. Bei der Hin- und Herbewegung der Lade 1 bzw. der Ein- und Austauchbewegung der Führungsvorrichtung 2 kann es vorkommen, dass der Kettfaden 21 aus der Gasse 20 sich hinter dem kürzeren Schenkel 15d der Führungsstütze 15a verhakt und durch das Tail 15e in die Gasse 18 gelangt, wo sich der korrekt verlaufende Kettfaden 19 befindet. Der abweichende Kettfaden ist strichpunktiert eingezeichnet und mit 21' bezeichnet. Dies führt zu einem unerwünschten Ueberdehnen des abweichenden Kettfadens.For a better understanding of the subject matter of the invention, the contours of a guide support 15a or a guide hook 15b of a guide tooth 15 according to the prior art are first drawn in with dash-dotted lines in FIG. 2. As can be seen, the guide support 15a consists of a longer leg 15c closer to the reed and a shorter leg 15d located farther from the reed, with a valley 15e as a transition between the two. The projectile is supported in three ways: on the inside of the longer leg 15c, on the shorter leg 15d and on the upper inner edge of the guide hook 15b. The guide hook 15b is mainly marked through a long, narrow neck 15f, so that a large clear width-16 remains within the guide tooth. An adjacent guide tooth is designated 17. A warp thread 19 is located in an alley 18 of the guide tooth 15, and a warp thread 21 is located in an alley 20 between the guide tooth 15 and the next guide tooth 17 2 it can happen that the warp thread 21 from the alley 20 hooks behind the shorter leg 15d of the guide support 15a and passes through the tail 15e into the alley 18, where the correctly running warp thread 19 is located. The deviating warp thread is shown in dash-dot lines and designated 21 '. This leads to an undesirable overstretching of the different warp thread.

Erfindungsgemäss ist bei jedem Führungszahn 15 einerseits der kürzere Schenkel 15d der Führungsstütze 15a entfernt, so dass nur eine einschenkelige Führungsstütze 15c nahe dem Riet für das Projektil verblieben ist. Anderseits ist der Hals 15f des Führungshakens 15b zum Führungskanal 8 hin verbreitert und weist eine Stützfläche 22 für das Projektil auf. Durch beide Massnahmen wird verhindert, dass beim Ueberspringen eines Kettfadens in eine benachbarte Gasse dieser überdehnt wird.According to the invention, the shorter leg 15d of the guide support 15a is removed from each guide tooth 15, so that only one single-leg guide support 15c remains for the projectile near the reed. On the other hand, the neck 15f of the guide hook 15b is widened towards the guide channel 8 and has a support surface 22 for the projectile. Both measures prevent the warp thread from being overstretched when it jumps into an adjacent alley.

Obschon die Erfindung für Greiferprojektil-Webmaschinen beschrieben ist, ist sie selbstverständlich auch für andere Webmaschinenarten verwendbar, z.B. für Handgreiferwebmaschinen.Although the invention has been described for rapier projectile weaving machines, it can of course also be used for other types of weaving machines, e.g. for hand rapier weaving machines.

Claims (1)

1. Führungsvorrichtung für Schussfadeneintragsorgane für Webmaschinen, insbesondere für Greiferprojektil-Webmaschinen, mit sich in Längsrichtung abwechselnden Führungsstützen und Führungshaken, die jeweils paarweise komplementär einen Führungszahn bilden, und wobei eine Führungsstütze aus einem längeren, dem Riet nähergelegenen Schenkel und einem kürzeren, vom Riet weiter entfernt gelegenen Schenkel besteht, dadurch gekennzeichnet , dass die Führungsstütze (3; 15a) einschenkelig ausgeführt ist indem der kürzere, dem Riet (11) näherliegende Schenkel (15d) entfernt ist, und dass der Hals (15f) des Führungshakens (4; 15b) zum Führungskanal (8) hin verbreitert ist um eine Stützfläche (22) für das Projektil (9) zu bilden.1. Guide device for weft insertion organs for weaving machines, in particular for rapier projectile weaving machines, with longitudinally alternating guide supports and guide hooks, each of which form a guide tooth complementarily in pairs, and wherein a guide support consists of a longer leg closer to the reed and a shorter one from the reed there is leg located at a distance, characterized in that the guide support (3; 15a) is made in one leg by removing the shorter leg (15d) closer to the reed (11) and in that the neck (15f) of the guide hook (4; 15b) is widened towards the guide channel (8) to form a support surface (22) for the projectile (9).
EP84107018A 1984-06-19 1984-06-19 Guideway for the weft inserter of a loom, especially for a dummy shuttle loom Expired EP0165327B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP84107018A EP0165327B1 (en) 1984-06-19 1984-06-19 Guideway for the weft inserter of a loom, especially for a dummy shuttle loom
DE8484107018T DE3473481D1 (en) 1984-06-19 1984-06-19 Guideway for the weft inserter of a loom, especially for a dummy shuttle loom
US06/741,002 US4628968A (en) 1984-06-19 1985-06-04 Guide for a weft-picking element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP84107018A EP0165327B1 (en) 1984-06-19 1984-06-19 Guideway for the weft inserter of a loom, especially for a dummy shuttle loom

Publications (2)

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EP0165327A1 true EP0165327A1 (en) 1985-12-27
EP0165327B1 EP0165327B1 (en) 1988-08-17

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US (1) US4628968A (en)
EP (1) EP0165327B1 (en)
DE (1) DE3473481D1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0402285A1 (en) * 1989-06-09 1990-12-12 S.A. Saurer Diederichs Supporting and guiding device for mechanical weft inserters in shuttleless looms
EP0898000A2 (en) * 1995-02-07 1999-02-24 Picanol N.V. Gripper loom with guiding means to guide a gripper strap and/or a gripper

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1004305A3 (en) * 1989-07-06 1992-10-27 Picanol Nv Rapier WITH LANCE GUIDANCE.
DE4308243A1 (en) * 1993-03-11 1994-09-15 Juergens Masch Gmbh & Co Projectile wide weaving machine
DE10346225A1 (en) * 2003-09-23 2005-05-19 Picanol N.V. Guide element for a rapier band

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1801044A1 (en) * 1967-12-08 1969-07-03 Sulzer Ag Guide device for the weft insertion member of a loom
DE1801043A1 (en) * 1967-12-08 1969-11-06 Sulzer Ag Guide element for the weft insertion element of a loom
EP0101777A1 (en) * 1982-08-26 1984-03-07 GebràœDer Sulzer Aktiengesellschaft Loom with oiling device for weft-inserting means

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3556163A (en) * 1968-12-06 1971-01-19 Sulzer Ag Guide for weft-picking means in a loom
US3705605A (en) * 1970-12-15 1972-12-12 Visesojuzny Nii Textilnogo Leg Fabric forming device for weaving looms
CH648616A5 (en) * 1980-12-02 1985-03-29 Sulzer Ag GUIDE TOE FOR FORMING A WEFT INSERT CHANNEL OF A LOOPPING MACHINE.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1801044A1 (en) * 1967-12-08 1969-07-03 Sulzer Ag Guide device for the weft insertion member of a loom
DE1801043A1 (en) * 1967-12-08 1969-11-06 Sulzer Ag Guide element for the weft insertion element of a loom
EP0101777A1 (en) * 1982-08-26 1984-03-07 GebràœDer Sulzer Aktiengesellschaft Loom with oiling device for weft-inserting means

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0402285A1 (en) * 1989-06-09 1990-12-12 S.A. Saurer Diederichs Supporting and guiding device for mechanical weft inserters in shuttleless looms
FR2648161A1 (en) * 1989-06-09 1990-12-14 Saurer Diederichs Sa SUPPORT AND GUIDANCE DEVICE FOR WEFT MECHANICAL INSERTION DEVICES IN A NON-SHUTTLE WEAVING MACHINE
EP0898000A2 (en) * 1995-02-07 1999-02-24 Picanol N.V. Gripper loom with guiding means to guide a gripper strap and/or a gripper
EP0898000A3 (en) * 1995-02-07 2000-02-23 Picanol N.V. Gripper loom with guiding means to guide a gripper strap and/or a gripper

Also Published As

Publication number Publication date
US4628968A (en) 1986-12-16
DE3473481D1 (en) 1988-09-22
EP0165327B1 (en) 1988-08-17

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