EP0389410A1 - Dispositif d'enfilage de fil de trame pour métier à tisser - Google Patents

Dispositif d'enfilage de fil de trame pour métier à tisser Download PDF

Info

Publication number
EP0389410A1
EP0389410A1 EP90810102A EP90810102A EP0389410A1 EP 0389410 A1 EP0389410 A1 EP 0389410A1 EP 90810102 A EP90810102 A EP 90810102A EP 90810102 A EP90810102 A EP 90810102A EP 0389410 A1 EP0389410 A1 EP 0389410A1
Authority
EP
European Patent Office
Prior art keywords
thread
weft
tensioner
deflection
brake
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.)
Ceased
Application number
EP90810102A
Other languages
German (de)
English (en)
Inventor
Franz Bürer
Hans-Jörg Gehrig
Josef Kaufmann
Heinz Maurer
Hanspeter Müller
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
Sulzer AG
Sultex 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, Sultex AG, Gebrueder Sulzer AG filed Critical Sulzer AG
Publication of EP0389410A1 publication Critical patent/EP0389410A1/fr
Ceased legal-status Critical Current

Links

Images

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

Definitions

  • the invention relates to a device for pulling a weft thread into a weaving machine, in which the thread is fed from a thread spool to the insertion element, with a guide channel for the weft thread.
  • the weft thread is guided at least in sections in a channel in the device for pulling in the weft thread, for example in the interior of a weft thread store with a stationary storage drum on which the weft thread is deposited in turns, in the area between the inlet eyelet and the winding zone the storage drum.
  • the weft thread is drawn into the machine at least in places by means of compressed air, while in rapier weaving machines the weft thread is drawn in by hand from the weft thread bobbin to the insertion element, in part by mechanical means.
  • the process of threading is to be simplified in the course of rationalization.
  • the inventor has set himself the task of designing a device for automatically drawing in the weft thread.
  • the guide channel is composed of tubular pieces and that different functional elements for influencing the thread are arranged between individual tubular pieces which are at least partially pressurized with compressed air and between two thread deflection points, for example a thread brake or a thread tensioner which crosses the thread deflect to its running direction, and that the tube pieces each have slots in the area of the thread deflection and in the direction of the deflection, which extend from one deflection point to the other.
  • the weft thread from the weft bobbin to the entry element is quickly and without hand-operated tool to the entry element of the weaving machine.
  • Weft thread 2 is drawn off from a yarn package 3 by means of one or more weft thread stores 4 and fed to an injector nozzle 73 through a thread eyelet 72. Between the injector nozzle 73 and the circumference of the weft thread store 4, a curved guide tube 51 with a slot 51 'is arranged on the side facing the weft thread store. Subsequent to a pipe section 52 arranged behind it, the weft thread 2 is guided into the area of a thread brake 60, the pipe section 52 'being slotted behind a thread deflection point 63 on the underside, so that the weft thread can emerge downwards from the slot 52' if it comes from a brake finger 62 is pressed down against a brake plate 61.
  • the weft thread 2 is replaced by a weft thread monitor 74, which also serves as a thread deflection point, into an injector nozzle 73 'and a pipe section 54 arranged behind it blown in. Both the injector nozzle 73 'and the pipe section 54 are slotted at the top, so that the weft thread can be formed by pivoting a thread tensioner 71a into position 71e to form a thread triangle 2' - 2 '.
  • the weft thread passes through a further slotted tube piece 55 into an injector nozzle 73 ⁇ and from there through a tube piece 56, which connects the injector nozzle 73 ⁇ with a changer segment 82, into a tube piece 57. From this tube piece 57, the end part of which according to FIG 2 can be curved, the weft is blown freely over the warp threads according to FIG. 2 or blown into an opening 58 of a thread guide 57 'which is connected to a suction line. The respective weft thread can then be gripped by a clip 84 of a thread feeder 83.
  • the changer segment 82 belongs to a thread changer 80 which is mounted in a housing 20.
  • the shaft 65 'for the thread brake 60 and the shaft 75' for the thread tensioner 71a, b, c, d as well as the changer shaft 82 are mounted in the housing 20.
  • Fig. 2 the thread run is shown schematically with the whole device.
  • an injector 43 at the entrance to the weft thread store 4, which has a compressed air connection 42, the weft thread 2 is brought into the winding area of the storage drum 44 through a winding tube 41. From there, the weft thread 2 can be guided down through the curved guide tube 51 to the injector nozzle 73, from which it is drawn in when compressed air is supplied through a line 93.
  • the weft thread 2 then passes from a slot 51 'into the extended position 2 ⁇ , being deflected back towards the weft thread storage device 4 when it emerges from the tube 51 from the circumference 73a of the injector nozzle 73 due to the suction flow to the thread eyelet 72.
  • All four weft threads are fed to a plurality of injector nozzles 73 ⁇ before entering the thread changer 80, which, depending on the position of a changer shaft 82 ′ and a compressed air distributor 95 ′ connected thereto, are supplied via the compressed air line 95.
  • the thread changer 80 is set into a pivoting movement by means of a changer drive 81 via gear wheels 82 ⁇ . Between the changer segment 82 with four thread transmitters 83 and the injector nozzles 73 ⁇ there are four tube pieces 56 corresponding to the number of weft threads, which partially follow the movement of the changer segment 82. In the changer segment 82, the four thread transmitters 84 are arranged according to arrow 83 '.
  • the thread transmitters 83 hold the front end of the respective weft thread by means of clips 84. From there, the weft thread can in each case be passed to an entry member 22, here a projectile, which is guided through guide teeth 21 of a guide channel within the shed 1 'to the other side of the weaving machine.
  • the thread guide member 57 ' serves to position the weft thread 2a after the weft insertion in such a way that it can be grasped and returned by the associated thread clip 84.
  • the thread guide member 57 ' can be hollow according to FIGS. 5 to 8, so that the weft thread 2 can be sucked through the openings 58 and 575 by connection to a suction line.
  • the opening 58 While the opening 58 is on a broad side of the thread guide 57 ', the opening 575 sits in a throat 574 of the 7 and 8.
  • the weft thread is cut off at a suitable point when it is discharged through the cavity 573 downwards in the direction of arrow 576.
  • the thread tensioner 71a is shown in perspective together with the thread path of the weft thread 2 in the vicinity of the thread tensioner.
  • the weft thread 2 is blown into the entire device in the dot-dash position F of the thread tensioner 71a.
  • the thread tensioner 71a is pressed down, for example by hand, in the direction of the arrow H in FIG. 9.
  • a valve 92 arranged below a roller lever with axis 75 ⁇ is actuated, which enables the passage of compressed air from line 97 into line 97 '.
  • the winding tube 41 must stand with its outlet opening opposite the inlet opening of the curved guide tube 51, which can be achieved by a corresponding switching of the electrical drive for the winding tube 41.
  • the brake 60 must also be open.
  • the weft thread 2 can now be drawn in by the injector 43 on the weft thread store 4 into the area of the warp threads 1. After capturing the weft 2 through the thread clip 84 and transfer to the entry member 22 can be carried out the weft entry. After the weft insertion, the thread 2 is cut off by the scissors 59.
  • the device is particularly suitable for rapier weaving machines, especially with weft insertion by means of a projectile. Individual elements of the device can also be used for jet looms.
  • the thread brake 60 is shown in perspective in detail.
  • the thread brake is alternately released and closed by a drive 65 with a shaft 65 'with cam and an axis 65 mit with roller lever.
  • a lifting cylinder 66 is pressurized with compressed air via a line 67, which line 67 can also be connected to the servo valve 91.
  • FIG. 11 schematically shows, as a detail from FIG. 2, another embodiment of the thread tensioner and the surrounding thread guide, the axis of the thread tensioner 71a being rotated by 90 ° with respect to FIG. 2.
  • the thread tensioner 71a is pulled out in the threading position F and drawn in dash-dot lines in the tensioning position S.
  • FIGS. 12a-12c show an embodiment for the thread guide in the area of the thread tensioner 71a.
  • the tubes 54 and 55 are machined from a block (B), with several guide channels lying next to one another according to the number of shot colors. They are open at the bottom and are interrupted by a recess A in which the annular thread eyelet 71'a of the thread tensioner 71a moves up and down.
  • the injector nozzles 73 'and 73 ⁇ are integrated in the guide channels in the embodiment. From the lines 95 and 96 for compressed air, this is diagonally through a system of holes in the respective pipe on both sides initiated, the bores at the confluence with the tubes being inclined at an acute angle to the conveying direction and a little from bottom to top, as shown in FIG. 12c as a section of FIG. 12a.
  • the running direction of the weft thread in FIGS. 12a-12c is from right to left in contrast to FIG. 11.
  • FIGS. 13a and 13b show an embodiment similar to the arrangement in FIG. 5 for catching the tip of the weft thread 2.
  • the weft thread 2 As soon as the weft thread 2 has emerged from the pipe section 57 and has flown freely past the thread guide member 57 ', it is caught by a second thread guide member 57 ⁇ with a suction opening 58 ⁇ .
  • the thread guide member 57 ⁇ is funnel-shaped, and it is expanded at the suction opening 58 ⁇ transversely to the flight direction of the weft thread 2.
  • a suction pipe 58 'air is sucked through the suction opening 58 ⁇ .
  • the weft thread After impacting the weft thread 2 on the inside of the suction opening 58ö réelle, the weft thread is deflected at a right angle over a certain length by the thread guide member 57 ⁇ and drawn off through the suction tube 58 '.
  • the weft thread can be deflected several times, as shown in FIG. 13a, since the suction pipe has two elbows.
  • the pulling-in process can be regarded as ended and it is held in a suitable place, for example at the brake 60.
  • the weft thread 2 By pivoting the thread guide 57 ⁇ by means of a lifting cylinder 87 to the Compressed air lines 99 are connected, via a piston rod 88 and a lever 89, and pivoting the other thread guide 57 ', the weft thread 2, as shown in Fig. 13b, enters the area of the thread guide 57' below the wing 570 '.
  • the weft thread is thus centered, ie precisely positioned, and can be gripped by the thread clip 84, which then transfers the weft thread to an insertion element 22. After the thread clip 84 has been closed, the weft thread 2 is cut by means of the scissors 59.
  • the piece of weft thread 2 located in front of the scissors 59 on its side facing the reed 11 is then completely discharged through the suction pipe 58 '.
  • the weft thread 2 can then be inserted between the warp threads 1 by means of the insertion element 22 and can be attached to the fabric 10 by means of the reed 11.
  • the cut piece of the weft thread 2 passes through the suction pipe 58 'into a thread collector 85.
  • a translatory movement to the rear is also conceivable.
  • the suction pipe 58 ' can be made of a material with high adhesion, for example silicone rubber, whereby the weft thread 2, as soon as it is inserted into the suction pipe 58', even after switching off the suction air, which through the compressed air line 99 into the injector 99 ' is blown in, can adhere to the inside of the suction tube 58 ', since the roughness of the thread paired with the adhesiveness on the inside of the suction tube 58' prevents the thread pressed against the tube wall under the inherent elasticity.
  • a material with high adhesion for example silicone rubber
EP90810102A 1989-03-17 1990-02-14 Dispositif d'enfilage de fil de trame pour métier à tisser Ceased EP0389410A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1007/89 1989-03-17
CH100789 1989-03-17

Publications (1)

Publication Number Publication Date
EP0389410A1 true EP0389410A1 (fr) 1990-09-26

Family

ID=4200274

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90810102A Ceased EP0389410A1 (fr) 1989-03-17 1990-02-14 Dispositif d'enfilage de fil de trame pour métier à tisser

Country Status (4)

Country Link
US (1) US5144987A (fr)
EP (1) EP0389410A1 (fr)
JP (1) JPH03504624A (fr)
WO (1) WO1990011397A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0617153A1 (fr) * 1993-03-26 1994-09-28 Sulzer RàœTi Ag Procédé pour influencer le mouvement d'un fil de trame tiré d'une bobine de réserve vers le dispositif d'insertion de trame d'un métier à tisser et métier à tisser pour l'exécution de ce procédé
US5372729A (en) * 1991-12-19 1994-12-13 Pelt & Hooykaas B.V. Method for fixing waste material
EP0890665A1 (fr) * 1997-07-09 1999-01-13 Sulzer Rüti Ag Dispositif pour tendre un fil de trame et métier à tisser équipé d'un tel dispositif

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5368244A (en) * 1989-10-16 1994-11-29 Iro Ab Thread brake
BE1009297A3 (fr) * 1993-04-16 1997-02-04 Nissan Texsys Co Ltd Systeme d'insertion de trame pour metier a jet de fluide.
EP0621359A1 (fr) * 1993-04-16 1994-10-26 Gebrüder Sulzer Aktiengesellschaft Dispositif pour l'enfilage automatique d'un fil de trame dans un oeillet
NL1023943C2 (nl) * 2003-07-17 2005-01-18 Te Strake Textile B V Weefinrichting.

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL296975A (fr) *
US4197882A (en) * 1977-08-18 1980-04-15 Nissan Motor Company, Limited Fluid jet shuttleless loom with resistance providing means for weft yarn
EP0155432A1 (fr) * 1984-03-23 1985-09-25 GebràœDer Sulzer Aktiengesellschaft Machine à tisser
EP0161376A1 (fr) * 1984-05-18 1985-11-21 GebràœDer Sulzer Aktiengesellschaft Métier à tisser à jet d'air
EP0171057A2 (fr) * 1984-08-06 1986-02-12 Tsudakoma Corporation Dispositif et procédé pour réparer un fil de trame dans un inséreur de trames
EP0189731A1 (fr) * 1985-01-29 1986-08-06 GebràœDer Sulzer Aktiengesellschaft Dispositif d'emmagasinage de matériel filiforme pour l'insertion de trame dans un métier à tisser
DE8712946U1 (fr) * 1987-09-25 1987-12-10 Aktiebolaget Iro, Ulricehamn, Se
EP0297040A1 (fr) * 1987-06-25 1988-12-28 GebràœDer Sulzer Aktiengesellschaft Procédé pour l'insertion de trame dans un métier pneumatique multicouleurs et métier pour l'exécution de ce procédé

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2925833A (en) * 1957-06-15 1960-02-23 Strake Lambertus Te Weft inserting nozzle for looms
DE2965438D1 (en) * 1979-08-08 1983-07-07 Sulzer Ag Nozzle arrangement for a jet loom
US4637229A (en) * 1985-02-11 1987-01-20 Taylor James W Jr Pneumatic thread tensioning device
US4756341A (en) * 1985-09-04 1988-07-12 Tsudakoma Corp. Method of and apparatus for automatically resetting weft storage device
EP0258887A3 (fr) * 1986-09-04 1990-06-13 Nissan Motor Co., Ltd. Métier à jet de fluide à phase multiple
US4730645A (en) * 1987-02-04 1988-03-15 Burlington Industries, Inc. Quick change kit for fluid jet loom
BE1001538A3 (nl) * 1988-03-16 1989-11-21 Picanol Nv Luchtweefmachine, met een verbeterde voeding voor de inslagdraden.

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL296975A (fr) *
US4197882A (en) * 1977-08-18 1980-04-15 Nissan Motor Company, Limited Fluid jet shuttleless loom with resistance providing means for weft yarn
EP0155432A1 (fr) * 1984-03-23 1985-09-25 GebràœDer Sulzer Aktiengesellschaft Machine à tisser
EP0161376A1 (fr) * 1984-05-18 1985-11-21 GebràœDer Sulzer Aktiengesellschaft Métier à tisser à jet d'air
EP0171057A2 (fr) * 1984-08-06 1986-02-12 Tsudakoma Corporation Dispositif et procédé pour réparer un fil de trame dans un inséreur de trames
EP0189731A1 (fr) * 1985-01-29 1986-08-06 GebràœDer Sulzer Aktiengesellschaft Dispositif d'emmagasinage de matériel filiforme pour l'insertion de trame dans un métier à tisser
EP0297040A1 (fr) * 1987-06-25 1988-12-28 GebràœDer Sulzer Aktiengesellschaft Procédé pour l'insertion de trame dans un métier pneumatique multicouleurs et métier pour l'exécution de ce procédé
DE8712946U1 (fr) * 1987-09-25 1987-12-10 Aktiebolaget Iro, Ulricehamn, Se

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5372729A (en) * 1991-12-19 1994-12-13 Pelt & Hooykaas B.V. Method for fixing waste material
EP0617153A1 (fr) * 1993-03-26 1994-09-28 Sulzer RàœTi Ag Procédé pour influencer le mouvement d'un fil de trame tiré d'une bobine de réserve vers le dispositif d'insertion de trame d'un métier à tisser et métier à tisser pour l'exécution de ce procédé
US5423355A (en) * 1993-03-26 1995-06-13 Sulzer Rueti Ag Method and apparatus for limiting stresses in weft yarn advancing towards a weft insertion mechanism
EP0890665A1 (fr) * 1997-07-09 1999-01-13 Sulzer Rüti Ag Dispositif pour tendre un fil de trame et métier à tisser équipé d'un tel dispositif

Also Published As

Publication number Publication date
WO1990011397A1 (fr) 1990-10-04
US5144987A (en) 1992-09-08
JPH03504624A (ja) 1991-10-09

Similar Documents

Publication Publication Date Title
DE2003594C3 (de) Vorrichtung für Spinnmaschinen zum gleichmäßigen Ausrichten und Aufsetzen von kegelstumpfförmigen Spulenhülsen auf die Zapfen eines horizontal laufenden Förderers
CH661538A5 (de) Vorrichtung zum entfernen von schussfaeden aus einer webmaschine.
DE2615909A1 (de) Verfahren zum fangen, abtrennen und ansetzen eines fadens und eine vorrichtung zur durchfuehrung des verfahrens
CH634013A5 (de) Verfahren und vorrichtung zum verbinden von textilfaeden.
CH633327A5 (de) Verfahren und vorrichtung zum anspinnen eines umwindegarnes.
DE3730480A1 (de) Verfahren zum entfernen eines fehlerhaft eingebrachten schussfadens an einer luftwebmaschine
DE2337786C2 (de) Abschuß- und Aufnahmevorrichtung für das Projektil einer pneumatischen Webmaschine
EP0389410A1 (fr) Dispositif d'enfilage de fil de trame pour métier à tisser
CH660723A5 (de) Pneumatische garnspleisseinrichtung zum spleissen von gesponnenen garnen.
EP0143860A1 (fr) Dispositif de préparation du fil de trame pour un métier à tisser multiphasé à foule linéaire
EP1972705A1 (fr) Dispositif d'accélération pour un métier à tisser
DE10201533B4 (de) Offenend-Rotorspinnmaschine
DE2203608A1 (de) Verfahren und Einrichtung zum Reinigen der Spinnturbinen von Offen-End-Spinneinrichtungen
CH657603A5 (de) Vorrichtung zum spleissen von gesponnenem garn.
DE3607206A1 (de) Verfahren und vorrichtung zum herstellen einer spleissverbindung
DE3734284A1 (de) Fadenspeicher- und -liefervorrichtung
DE4240728C2 (de) Verfahren zum knotenlosen Verbinden von Textilfäden bzw. Garnen mittels Druckluft und Vorrichtung zur Durchführung des Verfahrens
DE2847520A1 (de) Fadenvorlegevorrichtung, insbesondere zum vorlegen von kettfaeden fuer das automatische einziehen derselben in litzen und lamellen einer webmaschine
DE1286973B (de) Vorrichtung zum Stapeln eines abgelaengten Schussfadens fuer Webmaschinen
DE2206239C3 (de) SchuBfadenwechselvorrichtung für Webmaschinen mit Schußfadenführern und ortsfest angeordneten Vorratsspulen
DE3220064C2 (fr)
CH644645A5 (de) Schuetzenlose webmaschine.
EP0458736A1 (fr) Extraction de fil de trame cassé sur métiers à tisser à projectiles
DE102006025265A1 (de) Verfahren und Vorrichtung zum Bilden einer Gewebekante an einer Greiferwebmaschine
CH668416A5 (de) Fluid-garnspleissvorrichtung.

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): BE DE FR IT SE

17P Request for examination filed

Effective date: 19901109

17Q First examination report despatched

Effective date: 19930908

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: SULZER RUETI AG

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED

18R Application refused

Effective date: 19941128