EP0195469A2 - Métier à tisser avec fournisseur de trame - Google Patents

Métier à tisser avec fournisseur de trame Download PDF

Info

Publication number
EP0195469A2
EP0195469A2 EP86200276A EP86200276A EP0195469A2 EP 0195469 A2 EP0195469 A2 EP 0195469A2 EP 86200276 A EP86200276 A EP 86200276A EP 86200276 A EP86200276 A EP 86200276A EP 0195469 A2 EP0195469 A2 EP 0195469A2
Authority
EP
European Patent Office
Prior art keywords
woof
thread
components
weaving machine
feed
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
EP86200276A
Other languages
German (de)
English (en)
Other versions
EP0195469A3 (en
EP0195469B2 (fr
EP0195469B1 (fr
Inventor
Joos Waelkens
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.)
Picanol NV
Original Assignee
Picanol NV
Weefautomaten Picanol NV
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=3865737&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0195469(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from BE2/60647A external-priority patent/BE901969A/nl
Application filed by Picanol NV, Weefautomaten Picanol NV filed Critical Picanol NV
Publication of EP0195469A2 publication Critical patent/EP0195469A2/fr
Publication of EP0195469A3 publication Critical patent/EP0195469A3/en
Application granted granted Critical
Publication of EP0195469B1 publication Critical patent/EP0195469B1/fr
Publication of EP0195469B2 publication Critical patent/EP0195469B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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

Definitions

  • This claim concerns a weaving machine with improved feed for the woof. More particularly, it concerns a feed for the woof thread whereby a stoppage can be avoided through the operation of the feed if a break occurs in the woof thread before the gap is reached.
  • the woof thread feed of a weaving machine consists primarily of a number of components, such as thread bobbins, thread extraction machinery and/or unwinding devices and other storage devices, whereby the woof thread follows a deternined path from the yarn bobbin until it is offered up to a woof mechanism, by which the yarn is finally fed to the gap.
  • the bobbins used for this purpose are mostly each provided with a reserve bobbin, whereby the end of the thread wound around them is connected to the end of the thread on the active bobbin, such that when the active bobbin is empty, the mechanism auto- matically switches to the reserve bobbin.
  • Feed systems are also known whereby a number of unwinding bobbins are used which work in turns to achieve a desired effect. This system is most frequently used in a woof system in which use is n,ade of several yarns of different types or colours. It is also generally known that the interchanging of the woof yarns to be fed to the gap can be achieved by offering up the or supplying the different yarns alterbately to a woof feed device, which can consist of, for example, claw, blower or samilar.
  • a disadvantage of all these known woof yarn feed methods lies in the fact that a break in the thread always requires a stoppage whenever such a break occurs outside the gap, irrespective of whether the break occurs between a bobbin and the woof mechanism or the woof feed device, between a bobbin and an unwinding device, on the upper surface of on unwinding device, between the unwinding device and the woof mechanism or between the two coupled bobbins.
  • the claim presents a feed for the woof thread of a weaving machine whereby a break in the thread before the gap does not result in a stoppage.
  • this is achieved by separating each type of thread and the related feed, and, in addition, by providing a drive unit such that, as soon as a break is noted in a given part of the feed, the system autonatically switches to another part, with the advantage that the weaving machine can continue to operate without interruption.
  • the separated feed consists of an active section, from which the woof thread is supplied to the gap, and a passive section, which is only cut in when the active section has to be disengaged because of a break in the thread or similar incident.
  • the claim provides a separated feed whereby both sections are alternately operational and, in the event of a break in the thread, one of the sections is cut out, while the second section is engaged with doubled operating speed so that the entire weaving machine feed can be ensured by the second section.
  • the improved feed for the woof thread consists primarily of a combination of at least two components: at least one detector to check woof thread iravel in the feed system; a drive unit which, when the aforemetnioned detector detects a fault, cuts out one of the aforementioned components, and engages at least one other component of the feed system in its place, and a woof mechanism.
  • the woof thread feed system consists primarily of the cobation of two components 1 and 2, each of which is formed of a yarn bobbin; a woof mechanism 3; at least one detector 4, located along the yarn path of one of the woof threads 5 or 6, which are formed by the unwinding of bobbins I and 2; and a drive unit 7, to which detector 4 is connected, and from which a drive line 8 runs to woof mechanism 3.
  • the gap 9 of the weaving machine is schematically represented by means of a dotted line.
  • Woof mechanism 3 is, in this case, a double-action mechanism which can feed either woof thread 5 or woof thread 6 to gap 9, depending on the signal on drive line 8.
  • such woof mechanism 3 may consist of two blowers, each to feed one of woof threads 5 and 6 to gap 9.
  • either the first or the second of these is powered with compressed air.
  • a single blower in which a mechanism or device ensures that the desired woof thread, either 5 or 6, is automatically fed to the entry of the blower.
  • woof mechanism 3 consists principally of a thread presenter of a type already known, which, according to this embodiment, offers up one of the two woof threads, 5 or 6, to the claw, depending on the signal transmitted by drive unit 7.
  • the break in the thread can be repaired, so that the mechanism can transfer back to the first bobbin 1.
  • the claim also provides a solution for the automatic transfer to the second bobbin 2 as soon as the first bobbin 1 is empty.
  • a second detector 10 can be provided, located along the yarn path of woof thread 6 coning from the aforerentioned second component or bobbin 2.
  • the feed obtained thus according to the claim can be applied in a number of ways.
  • a first operating method is based on a drive system analogous to the previous one.
  • the system automatically switches to bobbin 2 and woof thread 6.
  • the defect in woof thread 5 is rcpaired, or empty bobbin 1 replaced by a full babbin.
  • the system switches back to bobbin 1 in a similar manner.
  • a second possibility of applying a similar installation consists of usang both bobbins 1 and 2 during the normal weaving process, ty alternately offering up woof threads 5 and 6 to pap 9 through alternating action of woof mechanism 3. If one of the detectors 4 and 10 detects, on the one hand, a broken thread, or, on the other hand, the running out of one of the yarn bobbins, drive unit 7 nakes sure that the full weaving cycle is performed from one only of components 1 and 2, such that the section where the fault or the end of a bobbin is detected is cut out.
  • the feed mechanism for the woof thread consists primarily of two components, 11 and 12, which replace one another, a woof mechanism 3, a drive unit 7, at least one of the aforementioned detectors 4 or 10, located along the path of the woof threads 5 or 6.
  • each of components 11 and 12 consists of two bobbins, respectively 13-14 and 15-16.
  • the ends 17-18 of each of the first bobbins, respectively 14 and 15, of components 11 and 12 are connected to the ends 19-20 of the thread on the related second bobbins, respectively 13 and 16.
  • Detectors 21 and 22 offer the advantage of faster detection of the end of a bobbin than with detectors 4 and 10, with the result that in this event, action is even faster, in other words, it is possible to switch woof mechanism 3 even more quickly.
  • an embodiment of the claim is represented which consists primarily of a combination of the embodiments shown in Figures 1 to 3.
  • detectors 21 and 22 which, in this case, are provided on the first bobbins 14-15 of each of components 11 and 12, there are also detectors on bobbins 13 and 16, respectively 23 and 24.
  • the operation is as follows.
  • woof thread is taken from component 11 only, and that component 12 merely serves as a reserve feed component. If woof thread 5 breaks, then detector 4 transmits a signal to drive unit 7, which then switches woof mechanism 3, via drive line 8, so that from that moment component 11 is cut out and component 12 ensures delivery of the woof thread to gap 9.
  • an embodiment of the claim. is represented schematically, in which, in addition to the aforementioned components 11 and 12, which, as stated, consist of two-bobbin sets, components 25 and 26 are also present.
  • These components 25 and 26 here consist of unwinding devices which are installed in the yarn paths of, on the one hand, woof thread 5 and, on the other hand, woof thread 6.
  • These components can also take another form, and are not necessarily limited to unwinding devices. These other forms are most frequently a runout device or a thread extraction device, which may or may not be combined with a thread storage appliance.
  • the aforementioned detectors 4 and 10 are located along woof threads 5 and 6 in the section located between bobbins 14-15 and components or unwinding devices 25-26.
  • detectors, 27 and 28 are provided here as well.
  • supplementary detectors 29 and 30 are provided on unwinding devices 25 and 26, which emit a signal as soon as the number of turns falls below a fixed minimum.
  • drive unit 7 also provides for cutting in and out of components or unwinding devices 25 and 26, by means of drive lines 31 and 32, along which their operation is controlled.
  • components 11 and 25 can provide gap 9 with woof thread 5 during the normal weaving process, while components 12 and 26 do not normally take an active role, buthremain constantly operational as spare parts, such that, if necessary, the system can switch automatically so that woof thread 6 is supplied to gap 9.
  • drive unit 7 initiates an automatic switchover to a thread supply from bobbin set 12.
  • the system can operate with more than two feed systems per type of thread. In the case of three systems, for example, the systems can operate at a third of the capacity they could have if operating alone. If a thread break occurs, one of the feed systems drops out, and the others switch to half capacity. If a further thread breaks, one system operates at full capacity.
  • the system can operate with all detectons shown, just as it can operate with only one of them.
  • the feed system according to the claim can be embodied in multiplc form if the system is to operate with more than one type or colour of woof yarn.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
EP19860200276 1985-03-19 1986-02-21 Métier à tisser avec fournisseur de trame Expired - Lifetime EP0195469B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE2060647 1985-03-19
BE2/60647A BE901969A (nl) 1985-03-19 1985-03-19 Weefmachine met verbeterde voeding voor de inslagdraad.

Publications (4)

Publication Number Publication Date
EP0195469A2 true EP0195469A2 (fr) 1986-09-24
EP0195469A3 EP0195469A3 (en) 1987-03-11
EP0195469B1 EP0195469B1 (fr) 1989-03-29
EP0195469B2 EP0195469B2 (fr) 1993-12-29

Family

ID=3865737

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19860200276 Expired - Lifetime EP0195469B2 (fr) 1985-03-19 1986-02-21 Métier à tisser avec fournisseur de trame

Country Status (2)

Country Link
EP (1) EP0195469B2 (fr)
DE (1) DE3662600D1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994012709A1 (fr) * 1992-12-03 1994-06-09 Iro Ab Procede pour la commande d'un systeme de livraison du fil et systeme de livraison du fil
EP0656437A1 (fr) * 1993-12-01 1995-06-07 Picanol N.V. Procédé pour fournir et insérer du fil de trame dans le tissu d'un métier à tisser et fournisseur
EP1087045A1 (fr) * 1999-09-27 2001-03-28 Sulzer Textil Ag Procédé pour faire fonctionner le fournisseur d'un métier à tisser
WO2003038172A1 (fr) * 2001-11-02 2003-05-08 Iropa Ag Dispositif et procede d'alimentation en fil
EP1676943A3 (fr) * 2004-11-26 2007-04-25 Tiziano Barea Procédé et dispositif permettant d'alimenter un fil dans une machine à textile
EP1878819A2 (fr) * 2006-07-11 2008-01-16 Tsudakoma Kogyo Kabushiki Kaisha Appareil d'insertion de trame dans un métier à tisser à jet de liquide
EP1878820A3 (fr) * 2006-07-11 2009-07-08 Tsudakoma Kogyo Kabushiki Kaisha Appareil d'insertion de trame multicolore dans un métier à tisser à jet de liquide
WO2015169611A1 (fr) 2014-05-09 2015-11-12 Picanol Dispositif délivreur de trame
WO2018007105A1 (fr) 2016-07-04 2018-01-11 Picanol Agencement et procédé d'optimisation d'un processus de tissage

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1001513A3 (nl) * 1988-03-16 1989-11-14 Picanol Nv Weefmachine, met een verbeterde voeding voor de inslagdraden.
BE1001819A3 (nl) * 1988-06-17 1990-03-13 Picanol Nv Inrichting en werkwijze voor de toevoer van inslagdraden bij weefmachines.
BE1001919A3 (nl) * 1988-12-05 1990-04-10 Picanol Nv Luchtweefmachine, met een verbeterde voeding voor de inslagdraden.
FR2642769B1 (fr) * 1989-02-07 1991-10-25 Saurer Diederichs Sa Dispositif pour la detection de defauts du fil de trame dans une machine a tisser
FR2644800B1 (fr) * 1989-03-22 1991-05-31 Saurer Diederichs Sa Dispositif d'alimentation en fil de trame pour machine a tisser avec insertion pneumatique de la trame
FR2648831A1 (fr) * 1989-06-26 1990-12-28 Saurer Diederichs Sa Dispositif d'alimentation en fil de trame pour machine a tisser avec insertion pneumatique
BE1004150A3 (nl) * 1990-04-27 1992-09-29 Picanol Nv Werkwijze en inrichting voor het toevoeren van inslaggaren aan de gaap bij een weefmachine.
DE19915349A1 (de) * 1999-04-06 2000-10-19 Dornier Gmbh Lindauer Verfahren zum Vermeiden einer Bremsverzögerung bei einem Webstop in einer Webmaschine
US6371169B1 (en) 1999-09-27 2002-04-16 Sulzer Textil Ag Method for the operation of a thread supplying apparatus of a weaving machine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4051871A (en) * 1974-04-30 1977-10-04 Roj Electrotex S.P.A. Electronic device for controlling weft yarn insertion in looms
DE2908743A1 (de) * 1978-03-09 1979-09-13 Loepfe Ag Geb Elektronischer fadenwaechter an webmaschine mit ortsfester schussgarn- vorratsspule
DE3220064A1 (de) * 1981-06-01 1982-12-16 Alsacienne Constr Meca Verfahren und vorrichtung zum einbringen von schuessen in eine webmaschine in einer gegebenen folge
CH646739A5 (de) * 1979-09-24 1984-12-14 Rueti Te Strake Bv Webverfahren fuer schuetzenlose webmaschinen und schussvorbereitungseinrichtung fuer die durchfuehrung des webverfahrens.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4051871A (en) * 1974-04-30 1977-10-04 Roj Electrotex S.P.A. Electronic device for controlling weft yarn insertion in looms
DE2908743A1 (de) * 1978-03-09 1979-09-13 Loepfe Ag Geb Elektronischer fadenwaechter an webmaschine mit ortsfester schussgarn- vorratsspule
CH646739A5 (de) * 1979-09-24 1984-12-14 Rueti Te Strake Bv Webverfahren fuer schuetzenlose webmaschinen und schussvorbereitungseinrichtung fuer die durchfuehrung des webverfahrens.
DE3220064A1 (de) * 1981-06-01 1982-12-16 Alsacienne Constr Meca Verfahren und vorrichtung zum einbringen von schuessen in eine webmaschine in einer gegebenen folge

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994012709A1 (fr) * 1992-12-03 1994-06-09 Iro Ab Procede pour la commande d'un systeme de livraison du fil et systeme de livraison du fil
EP0656437A1 (fr) * 1993-12-01 1995-06-07 Picanol N.V. Procédé pour fournir et insérer du fil de trame dans le tissu d'un métier à tisser et fournisseur
BE1007850A3 (nl) * 1993-12-01 1995-11-07 Picanol Nv Werkwijze en weefmachine met een voeding voor inslagdraden.
EP1087045A1 (fr) * 1999-09-27 2001-03-28 Sulzer Textil Ag Procédé pour faire fonctionner le fournisseur d'un métier à tisser
WO2003038172A1 (fr) * 2001-11-02 2003-05-08 Iropa Ag Dispositif et procede d'alimentation en fil
EP1676943A3 (fr) * 2004-11-26 2007-04-25 Tiziano Barea Procédé et dispositif permettant d'alimenter un fil dans une machine à textile
EP1878819A2 (fr) * 2006-07-11 2008-01-16 Tsudakoma Kogyo Kabushiki Kaisha Appareil d'insertion de trame dans un métier à tisser à jet de liquide
EP1878819A3 (fr) * 2006-07-11 2009-07-08 Tsudakoma Kogyo Kabushiki Kaisha Appareil d'insertion de trame dans un métier à tisser à jet de liquide
EP1878820A3 (fr) * 2006-07-11 2009-07-08 Tsudakoma Kogyo Kabushiki Kaisha Appareil d'insertion de trame multicolore dans un métier à tisser à jet de liquide
CN101104974B (zh) * 2006-07-11 2011-01-26 津田驹工业株式会社 流体喷射式织机的引纬装置
CN101104975B (zh) * 2006-07-11 2012-05-02 津田驹工业株式会社 流体喷射式织机的多色引纬装置
WO2015169611A1 (fr) 2014-05-09 2015-11-12 Picanol Dispositif délivreur de trame
WO2018007105A1 (fr) 2016-07-04 2018-01-11 Picanol Agencement et procédé d'optimisation d'un processus de tissage

Also Published As

Publication number Publication date
EP0195469A3 (en) 1987-03-11
EP0195469B2 (fr) 1993-12-29
EP0195469B1 (fr) 1989-03-29
DE3662600D1 (en) 1989-05-03

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