EP1020550B1 - Device for separating a weft thread to be inseted in a shed and loom with such a device - Google Patents

Device for separating a weft thread to be inseted in a shed and loom with such a device Download PDF

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Publication number
EP1020550B1
EP1020550B1 EP19990811111 EP99811111A EP1020550B1 EP 1020550 B1 EP1020550 B1 EP 1020550B1 EP 19990811111 EP19990811111 EP 19990811111 EP 99811111 A EP99811111 A EP 99811111A EP 1020550 B1 EP1020550 B1 EP 1020550B1
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EP
European Patent Office
Prior art keywords
accordance
clamping
weft thread
clamping part
thread
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP19990811111
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German (de)
French (fr)
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EP1020550A1 (en
Inventor
Klaus Berktold
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.)
Itema Switzerland Ltd
Original Assignee
Sultex AG
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Filing date
Publication date
Application filed by Sultex AG filed Critical Sultex AG
Priority to EP19990811111 priority Critical patent/EP1020550B1/en
Publication of EP1020550A1 publication Critical patent/EP1020550A1/en
Application granted granted Critical
Publication of EP1020550B1 publication Critical patent/EP1020550B1/en
Anticipated expiration legal-status Critical
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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
    • D03D47/12—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein single picks of weft thread are inserted, i.e. with shedding between each pick
    • D03D47/125—Weft holding devices
    • 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
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D49/00—Details or constructional features not specially adapted for looms of a particular type
    • D03D49/70—Devices for cutting weft threads

Definitions

  • the invention relates to a device for separating a into a shed weft to be entered and a weaving machine with such Contraption.
  • the weft thread runs from a supply spool over several functional units in the tissue and is through the Warp threads held. For a subsequent weft entry the submitted the weft in question to a rapier and by this in entered the shed, the weft thread becoming one of the Machine control is disconnected at a certain time.
  • the well-known Bring grippers have a thread clamp, the clamping force or Clamping gap is set beforehand. Have the weft threads to be entered different thicknesses and / or their surface quality different, so the weft threads when taking over penetrate to different depths into the clamping gap of the thread clamp. This can result in the weft not being securely clamped or held or even damaged.
  • the document EP-A-0 129 812 describes a device which on Entrance of the shed of a rapier loom is arranged for Guiding, braking and cutting a weft. To slow down the weft thread in the device mentioned with a resilient Sheet metal plates pressed onto a cutting edge of the cutting device.
  • the invention has for its object a device for separation to improve a weft thread to be entered in a shed.
  • the advantage that can be achieved with the invention is that a flawless clamping of the weft thread in the thread clamp in front of the Disconnection is guaranteed.
  • the clamping device 1 contains a fixed clamping part 4, one Leaf spring 5 and an adjusting screw 6.
  • the fixed clamping part 4 is on the cutting device mounted and the leaf spring 5 is on the one hand fixed clamp part and is on the other hand with one end of the Set screw 6 connected.
  • the set screw can be rotated in a holder 7 arranged so that by turning the adjusting screw the pressing force can be changed.
  • the cutting device 2 has a motor 11 and a knife 12 with a circular cutting edge, which on the Motor axis is attached.
  • the fixed clamp part also forms one Guide to guide the weft against the cutting edge.
  • a knife 13 can be used instead of the cutting device provided that e.g. is fixed to the fixed clamping part 4.
  • this device differs from that according to FIG 1 in that a linear motor 14 instead of the set screw is provided to change the pressing force.
  • This device contains the clamping device 21 and the cutting device 2.
  • Die Clamping device comprises a fixed clamping part 22, a movable jaw 23 and a linear motor 24.
  • the fixed Clamping part 22 is arranged in a stationary manner.
  • the jaw 23 is relative to that fixed clamping part 22 pivotally arranged and mechanical Transmission means 25 connected to the linear motor 24.
  • the device comprises the clamping device 21 and a cutting device 31.
  • Die Cutting device 31 contains a fixed knife 32, a movable knife Knife 33 and a linear motor 34.
  • the movable knife 33 contains a U-shaped section 35 to receive the weft and against the cutting edge of the fixed knife.
  • the Linear motor 34 includes a stator 36, an armature 37 and two leaf springs 38, which serve as bearing parts for the anchor, so that the anchor is a performs linear movement.
  • the movable knife 33 is over mechanical transmission elements 39 with the armature of the linear motor 34 connected. As shown in Fig. 8, one can adjust the clamping force Set screw 40 can be applied.
  • FIG. 9 shows a schematic representation of an arrangement for Inserting a weft thread by means of a bringer gripper 52, the one Has thread clamp.
  • the arrangement essentially comprises one Weft thread supply 53, a weft thread store 54, a thread brake 55, a sensor 56 for measuring the thread tension, thread feeder 57 as Part of a color selector, not shown, the device 1 for separating the Weft, a control device 58 and a signal transmitter 59, which emits a signal specific to the weft thread being presented.
  • the thread feeder 57 a weft thread is laid in the carrier gripper 52 career.
  • the Weft thread is removed from the thread clamp of the rapier 52 recorded and transported in the direction of the shed.
  • the Pulling weft thread into the clamping device 1 and holding it back.
  • the motor 11 is switched on, so that the knife 12 rotates.
  • With the measure the weft thread by means of a clamp hold back the weft thread in the nip of the thread clamp of the grabber. This ensures that the weft thread in the thread clamp of the hand gripper depending on the thread specific adjustable clamp 5 is held securely and consequently more advantageously Way thread losers and fabric defects can be avoided.
  • the device comprises a clamping device 1 with a fixed one Clamping part 4 and adjustable clamping part 5 to the weft hold back and a cutter 2 to post the weft Disconnect release by the clamping device 1.

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

Description

Die Erfindung betrifft eine Vorrichtung zum Abtrennen eines in ein Webfach einzutragenden Schussfadens und eine Webmaschine mit einer derartigen Vorrichtung.The invention relates to a device for separating a into a shed weft to be entered and a weaving machine with such Contraption.

In Greiferwebmaschinen verläuft der Schussfaden von einer Vorratsspule über mehrere Funktionseinheiten in das Gewebe und wird durch die Kettfäden gehalten. Für einen jeweils nachfolgenden Schusseintrag wird der betreffende Schussfaden einem Bringergreifer vorgelegt und durch diesen in das Webfach eingetragen, wobei der Schussfaden zu einem von der Maschinensteuerung bestimmten Zeitpunkt abgetrennt wird. Die bekannten Bringergreifer weisen eine Fadenklemme auf, deren Klemmkraft bzw. Klemmspalt vorher eingestellt wird. Haben die einzutragenden Schussfäden verschiedene Dicken und/oder ist ihre Oberflächenbeschaffenheit unterschiedlich, so werden die Schussfäden bei der Übernahme unterschiedlich tief in den Klemmspalt der Fadenklemme eindringen. Dies kann zur Folge haben, dass die Schussfäden nicht sicher geklemmt bzw. gehalten oder sogar beschädigt werden. Weil in den bekannten Greiferwebmaschine die Schussfäden innerhalb eines Webzyklus jeweils zum gleichen Zeitpunkt geschnitten werden, kommt es vor, dass ein Schussfaden einerseits ohne sicheren Halt im Klemmspalt der Fadenklemme einerseits geschnitten wird und andererseits ein dünner Faden noch vor seiner Trennung durch die Schneidvorrichtung abgerissen werden kann. Im ersten Fall ergeben sich Fehler beim Eintragen des Schussfadens, sogenannte Fadenverlierer im anderen Fall kann der eingetragene Schussfaden zu kurz sein und in das Gewebe zurückspringen, was zu Gewebefehlern führt.In rapier weaving machines, the weft thread runs from a supply spool over several functional units in the tissue and is through the Warp threads held. For a subsequent weft entry the submitted the weft in question to a rapier and by this in entered the shed, the weft thread becoming one of the Machine control is disconnected at a certain time. The well-known Bring grippers have a thread clamp, the clamping force or Clamping gap is set beforehand. Have the weft threads to be entered different thicknesses and / or their surface quality different, so the weft threads when taking over penetrate to different depths into the clamping gap of the thread clamp. This can result in the weft not being securely clamped or held or even damaged. Because in the known Rapier weaving machine the weft threads within a weaving cycle each are cut at the same time, it happens that a Weft thread on the one hand without a secure hold in the clamping gap of the thread clamp cut on the one hand and a thin thread on the other its separation can be torn off by the cutting device. in the in the first case there are errors in the insertion of the weft thread, so-called thread loser in the other case, the registered Weft should be too short and spring back into the fabric, causing too Leads to tissue defects.

Das Dokument EP-A-0 129 812 beschreibt eine Vorrichtung, welche am Eingang des Webfaches einer Greiferwebmaschine angeordnet ist, zum Führen, Abbremsen und Abschneiden eines Schussfadens. Zum Abbremsen wird der Schussfaden in der genannten Vorrichtung mit einem federnden Blechplättchen auf eine Schneide der Schneidvorrichtung gepresst.The document EP-A-0 129 812 describes a device which on Entrance of the shed of a rapier loom is arranged for Guiding, braking and cutting a weft. To slow down the weft thread in the device mentioned with a resilient Sheet metal plates pressed onto a cutting edge of the cutting device.

Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung zum Abtrennen eines in ein Webfach einzutragenden Schussfadens zu verbessern.The invention has for its object a device for separation to improve a weft thread to be entered in a shed.

Der mit der Erfindung erzielbare Vorteil ist darin zu sehen, dass eine einwandfreie Klemmung des Schussfadens in der Fadenklemme vor dem Abtrennen gewährleistet ist.The advantage that can be achieved with the invention is that a flawless clamping of the weft thread in the thread clamp in front of the Disconnection is guaranteed.

Diese Aufgabe wird erfindungsgemäss mit den Merkmalen des Anspruches 1 gelöst.This object is achieved according to the invention with the features of claim 1 solved.

Nachfolgend wird die Erfindung anhand der beiliegenden Figuren erläutert.The invention is explained below with reference to the attached figures.

Es zeigen:

Fig.1
Eine erste Ausführung einer erfindungsgemässen Vorrichtung in räumlicher Darstellung;
Fig.2
eine Modifikation der Ausführung gemäss Fig.1;
Fig.3
eine zweite Ausführung einer erfindungsgemässen Vorrichtung in räumlicher Darstellung;
Fig.4
eine dritte Ausführung einer erfindungsgemässen Vorrichtung in räumlicher Darstellung;
Fig.5
eine räumliche Darstellung der Klemmeinrichtung gemäss Fig.4 im grösseren Massstab;
Fig.6
eine vierte Ausführung einer erfindungsgemässen Vorrichtung in räumlicher Darstellung;
Fig.7
eine räumliche Darstellung der Klemmeinrichtung und Schneideinrichtung gemäss Fig.6 im grösseren Massstab;
Fig.8
eine modifizierte Ausführung der Klemmeinrichtung gemäss Fig.6 und
Fig.9
eine schematische Darstellung einer Anordnung zum Eitragen eines Schussfadens mittels eines Bringergreifers.
Show it:
Fig.1
A first embodiment of a device according to the invention in spatial representation;
Fig.2
a modification of the design according to Fig.1;
Figure 3
a second embodiment of an inventive device in a spatial representation;
Figure 4
a third embodiment of a device according to the invention in a spatial representation;
Figure 5
a spatial representation of the clamping device according to Figure 4 on a larger scale;
Figure 6
a fourth embodiment of an inventive device in a spatial representation;
Figure 7
a spatial representation of the clamping device and cutting device according to Figure 6 on a larger scale;
Figure 8
a modified version of the clamping device according to Fig.6 and
Figure 9
is a schematic representation of an arrangement for carrying a weft thread by means of a bringer gripper.

Es wird auf die Figuren 1 Bezug genommen. Danach besteht die Vorrichtung im Wesentlichen aus einer Klemmeinrichtung 1 und einer Schneideinrichtung 2. Die Klemmeinrichtung 1 enthält einen feststehenden Klemmteil 4, eine Blattfeder 5 und eine Stellschraube 6. Der feststehende Klemmteil 4 ist an der Schneideinrichtung montiert und die Blattfeder 5 liegt einerseits am feststehenden Klemmteil an und ist andererseits mit einem Ende der Stellschraube 6 verbunden. Die Stellschraube ist in einem Halter 7 drehbar angeordnet, so dass durch Drehen der Stellschraube die Andrückkraft verändert werden kann. Die Schneideinrichtung 2 weist einen Motor 11 und ein Messer 12 mit einer kreisförmigen Schneidkante auf, welches an der Motorachse befestigt ist. Der feststehende Klemmteil bildet auch ein Führungsorgan, um den Schussfaden gegen die Schneidkante zu führen.Reference is made to FIGS. 1. Then the device exists essentially from a clamping device 1 and a cutting device 2. The clamping device 1 contains a fixed clamping part 4, one Leaf spring 5 and an adjusting screw 6. The fixed clamping part 4 is on the cutting device mounted and the leaf spring 5 is on the one hand fixed clamp part and is on the other hand with one end of the Set screw 6 connected. The set screw can be rotated in a holder 7 arranged so that by turning the adjusting screw the pressing force can be changed. The cutting device 2 has a motor 11 and a knife 12 with a circular cutting edge, which on the Motor axis is attached. The fixed clamp part also forms one Guide to guide the weft against the cutting edge.

Wie die Fig.2 zeigt, kann anstelle der Schneideinrichtung ein Messer 13 vorgesehen werden, das z.B. am feststehenden Klemmteil 4 befestigt ist.As FIG. 2 shows, a knife 13 can be used instead of the cutting device provided that e.g. is fixed to the fixed clamping part 4.

Wie die Fig.3 zeigt, unterscheidet sich diese Vorrichtung von der gemäss Fig.1 dadurch, dass anstelle der Stellschraube ein Linearmotor 14 vorgesehen ist, um die Andrückkraft zu verändern.As FIG. 3 shows, this device differs from that according to FIG 1 in that a linear motor 14 instead of the set screw is provided to change the pressing force.

Es wird auf die Figuren 4 und 5 Bezug genommen. Diese Vorrichtung enthält die Klemmeinrichtung 21 und die Schneideinrichtung 2. Die Klemmeinrichtung umfasst einen feststehenden Klemmteil 22, eine bewegliche Klemmbacke 23 und einen Linearmotor 24. Der feststehende Klemmteil 22 ist ortsfest angeordnet. Die Klemmbacke 23 ist bezüglich dem feststehenden Klemmteil 22 schwenkbar angeordnet und über mechanische Übertragungsmittel 25 mit dem Linearmotor 24 verbunden.Reference is made to FIGS. 4 and 5. This device contains the clamping device 21 and the cutting device 2. Die Clamping device comprises a fixed clamping part 22, a movable jaw 23 and a linear motor 24. The fixed Clamping part 22 is arranged in a stationary manner. The jaw 23 is relative to that fixed clamping part 22 pivotally arranged and mechanical Transmission means 25 connected to the linear motor 24.

Es wird auf die Figuren 6 bis 8 Bezug genommen. Die Vorrichtung umfasst die Klemmeinrichtung 21 und eine Schneideinrichtung 31. Die Schneideinrichtung 31 enthält ein feststehendes Messer 32, ein bewegliches Messer 33 und einen Linearmotor 34. Das bewegliche Messer 33 enthält einen U-förmigen Abschnitt 35, um den Schussfaden aufzunehmen und gegen die Schneidkante des feststehenden Messers zu verlagern. Der Linearmotor 34 enthält einen Stator 36, einen Anker 37 und zwei Blattfedern 38, welche als Lagerteile für den Anker dienen, so dass der Anker eine geradlinige Bewegung ausführt. Das bewegliche Messer 33 ist über mechanische Übertragungselemente 39 mit dem Anker des Linearmotors 34 verbunden. Wie die Fig.8 zeigt kann zur Einstellung der Klemmkraft eine Stellschraube 40 angewendet werden.Reference is made to FIGS. 6 to 8. The device comprises the clamping device 21 and a cutting device 31. Die Cutting device 31 contains a fixed knife 32, a movable knife Knife 33 and a linear motor 34. The movable knife 33 contains a U-shaped section 35 to receive the weft and against the cutting edge of the fixed knife. The Linear motor 34 includes a stator 36, an armature 37 and two leaf springs 38, which serve as bearing parts for the anchor, so that the anchor is a performs linear movement. The movable knife 33 is over mechanical transmission elements 39 with the armature of the linear motor 34 connected. As shown in Fig. 8, one can adjust the clamping force Set screw 40 can be applied.

Die Fig.9 zeigt eine schematische Darstellung einer Anordnung zum Eintragen eines Schussfadens mittels eines Bringergreifers 52, der eine Fadenklemme aufweist. Die Anordnung umfasst im Wesentlichen einen Schussfadenvorrat 53, einen Schussfadenspeicher 54, eine Fadenbremse 55, einen Sensor 56 zur Messung der Fadenzugkraft, Fadenvorleger 57 als Teil eines nicht gezeigten Farbwählers, die Vorrichtung 1 zum Abtrennen des Schussfadens, eine Steuereinrichtung 58 und einen Signalgeber 59, welcher ein für den jeweils vorgelegten Schussfaden spezifisches Signal abgibt.9 shows a schematic representation of an arrangement for Inserting a weft thread by means of a bringer gripper 52, the one Has thread clamp. The arrangement essentially comprises one Weft thread supply 53, a weft thread store 54, a thread brake 55, a sensor 56 for measuring the thread tension, thread feeder 57 as Part of a color selector, not shown, the device 1 for separating the Weft, a control device 58 and a signal transmitter 59, which emits a signal specific to the weft thread being presented.

Nachfolgend wird die Funktion der Vorrichtung anhand der Figuren 1 und 9 beschrieben. Während eines Webzyklus wird mittels des Fadenvorlegers 57 ein Schussfaden in die Laufbahn des Bringergreifers 52 verlegt. Der Schussfaden wird von der Fadenklemme des Bringergreifers 52 aufgenommen und in Richtung des Webfaches befördert. Hierbei wird der Schussfaden in die Klemmeinrichtung 1 gezogen und dabei zurückgehalten. Zu diesem Zeitpunkt ist der Motor 11 eingeschaltet, so dass das Messer 12 rotiert. Mit der Massnahme den Schussfaden mittels einer Klemme zurückzuhalten, wird der Schussfaden in den Klemmspalt der Fadenklemme des Bringergreifers gezogen. Damit wird erreicht, dass der Schussfaden in der Fadenklemme des Bringergreifers in Abhängigkeit der fadenspezifisch einstellbaren Klemme 5 sicher gehalten wird und folglich in vorteilhafter Weise Fadenverlierer und Gewebefehler vermieden werden.The function of the device is described below with reference to FIGS. 1 and 9 described. During a weaving cycle, the thread feeder 57 a weft thread is laid in the carrier gripper 52 career. The Weft thread is removed from the thread clamp of the rapier 52 recorded and transported in the direction of the shed. Here, the Pulling weft thread into the clamping device 1 and holding it back. At this time, the motor 11 is switched on, so that the knife 12 rotates. With the measure the weft thread by means of a clamp hold back the weft thread in the nip of the thread clamp of the grabber. This ensures that the weft thread in the thread clamp of the hand gripper depending on the thread specific adjustable clamp 5 is held securely and consequently more advantageously Way thread losers and fabric defects can be avoided.

Die Vorrichtung umfasst eine Klemmeinrichtung 1 mit einem feststehenden Klemmteil 4 und einstellbaren Klemmteil 5, um den Schussfaden zurückzuhalten und eine Schneideinrichtung 2, um den Schussfaden nach Freigabe durch die Klemmeinrichtung 1 abzutrennen.The device comprises a clamping device 1 with a fixed one Clamping part 4 and adjustable clamping part 5 to the weft hold back and a cutter 2 to post the weft Disconnect release by the clamping device 1.

Mittels der einwandfreien Klemmung des Schussfadens in der Fadenklemme wird das Abtrennen unterschiedlicher Garnarten gewährleistet.By means of the perfect clamping of the weft thread in the thread clamp the separation of different types of yarn is guaranteed.

Claims (10)

  1. Apparatus for the severing of a weft thread to be inserted into a shed, said apparatus being disposed laterally alongside the path of movement of a bringer rapier (52), characterised by a clamping device (1; 21) including a stationary clamping part (4; 22) and a settable clamping part (5; 23) in order to hold back the weft thread taken up from the bringer rapier und conveyed in the direction of the shed and by a severing device (2; 13; 31) in order to sever the weft thread after release by the clamping device.
  2. Apparatus in accordance with claim 1 characterised in that the settable clamping part is a leaf spring (5).
  3. Apparatus in accordance with claim 1 or claim 2 characterised in that the settable clamping part is designed as a clamping shoe (23) which is pivotal with respect to the stationary clamping part (22).
  4. Apparatus in accordance with claim 1 characterised by a setting means (6; 40) which is connected to the settable clamping part (5; 23) in order to set the clamping force of the clamping device.
  5. Apparatus in accordance with claim 4 characterised in that the setting means is a setting screw (6; 40)
  6. Apparatus in accordance with claim 4 characterised in that the setting means is a linear motor (14; 24).
  7. Apparatus in accordance with claim 1 characterised in that the severing device comprises a stationary knife (13; 32).
  8. Apparatus in accordance with claim 1 characterised in that the severing device has a rotating knife (13; 32).
  9. Apparatus in accordance with claim 1 characterised in that in the severing device has a stationary knife (32) and a movable knife (33); and in that the movable knife has a section (35) in order to hold the weft thread and to displace it towards the stationary knife (32).
  10. Weaving machine in accordance with one of the claims 1 to 9.
EP19990811111 1999-01-12 1999-12-02 Device for separating a weft thread to be inseted in a shed and loom with such a device Expired - Lifetime EP1020550B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19990811111 EP1020550B1 (en) 1999-01-12 1999-12-02 Device for separating a weft thread to be inseted in a shed and loom with such a device

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP99810015 1999-01-12
EP99810015 1999-01-12
EP19990811111 EP1020550B1 (en) 1999-01-12 1999-12-02 Device for separating a weft thread to be inseted in a shed and loom with such a device

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EP1020550A1 EP1020550A1 (en) 2000-07-19
EP1020550B1 true EP1020550B1 (en) 2004-07-21

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1871386B (en) * 2003-10-21 2010-12-08 必佳乐有限公司 Method for selecting and feeding weft yarns, and a rapier weaving machine equipped with a device for selecting and feeding weft yarns

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5013248A (en) * 1989-09-19 1991-05-07 Amp Incorporated Multicircuit connector assembly
EP1918437A1 (en) 2006-11-02 2008-05-07 Sultex AG Method and device for weft insertion
TWI732251B (en) * 2018-09-27 2021-07-01 義大利商桑德森力瑪集團有限公司 Weft thread cutting device for shuttleless looms

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1303453A (en) * 1970-07-06 1973-01-17
US4054159A (en) * 1973-10-04 1977-10-18 Societe Alsacienne De Constructions Mecaniques De Mulhouse Picking method for a shuttleless weaving machine
IT1017877B (en) * 1974-08-02 1977-08-10 Nuovo Pignone Spa DEVICE FOR HOLDING THE CLOSED WEFT HEAD THAT MUST BE RE-FOLDED IN THE WARP FOR SEA A SELVEDGE IN A FAB BRICATO FABRIC WITH A FRAME WITHOUT SHUTTLE WITH CONTINUOUS FEEDING OF THE WEFT WIRES
IT1163596B (en) * 1983-06-24 1987-04-08 Vamatex Spa GUIDE AND BRAKING DEVICE OF THE WEFT WIRE AT THE INPUT OF THE PITCH IN WEAVING FRAMES WITHOUT SHUTTLES
DE59306205D1 (en) * 1993-09-20 1997-05-22 Rueti Ag Maschf Arrangement for placing weft threads
EP0816545B1 (en) * 1996-07-03 2000-02-02 Sulzer Textil Ag Defective weft insertion detection device on a gripper loom

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1871386B (en) * 2003-10-21 2010-12-08 必佳乐有限公司 Method for selecting and feeding weft yarns, and a rapier weaving machine equipped with a device for selecting and feeding weft yarns

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