EP0286590A1 - Dispositif d'emmagasinage de fil de trame pour un métier à tisser - Google Patents

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

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Publication number
EP0286590A1
EP0286590A1 EP88810186A EP88810186A EP0286590A1 EP 0286590 A1 EP0286590 A1 EP 0286590A1 EP 88810186 A EP88810186 A EP 88810186A EP 88810186 A EP88810186 A EP 88810186A EP 0286590 A1 EP0286590 A1 EP 0286590A1
Authority
EP
European Patent Office
Prior art keywords
ring
transmitter
receiver
thread
control device
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
EP88810186A
Other languages
German (de)
English (en)
Other versions
EP0286590B1 (fr
Inventor
Antonius Josephus Maria Hamer
Gerardus Antonius Spang
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
Publication of EP0286590A1 publication Critical patent/EP0286590A1/fr
Application granted granted Critical
Publication of EP0286590B1 publication Critical patent/EP0286590B1/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
    • D03D47/36—Measuring and cutting the weft
    • D03D47/361—Drum-type weft feeding devices
    • D03D47/367—Monitoring yarn quantity on the drum
    • 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
    • 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
    • D03D47/363—Construction or control of the yarn retaining devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2513/00—Dynamic entities; Timing aspects
    • B65H2513/10—Speed
    • B65H2513/11—Speed angular

Definitions

  • the invention relates to a weft thread store for a weaving machine, with a stationary drum and a control device for the weft thread wound around the drum, the control device being arranged on the take-off side of the store.
  • Such a weft store is known from EP application No. 011 308. It describes two types of winding counters for the weft thread running off the drum.
  • a light transmitter for example, can be arranged in the vicinity of the storage drum, the rays of which are reflected on the drum circumference and reflected to a receiver arranged near the transmitter. If the weft thread crosses the light rays during the pull-off from the drum, a signal is sent to the control of the weft thread store, which can correspond, for example, to a drawn-off turn.
  • the arrangement of an optical sensor for the weft thread in a cylindrical eyelet between the drum of the weft thread store and the insertion device, in this case a blowing nozzle is described.
  • Both arrangements of the monitoring devices for the weft thread have the disadvantage that the weft thread can assume any position in the space between the sensor and in the first case the storage drum or in the second case the rotationally symmetrical body.
  • the distance between the weft thread and the exit surface of the light rays from the control device can vary according to the clear width of the space at this point.
  • deposits can settle on the exit surface without being regularly stripped by the passing weft thread.
  • Such deposits for example in the form of thread particles, can disrupt the beam path from the transmitter to the receiver and trigger false signals, which can lead to interruption of the weaving operation. Such interruptions are undesirable because they affect the efficiency of the weaving machine.
  • control device is arranged behind the trailing edge of the storage drum and in front of a thread eyelet in the area in which a thread balloon forms between the storage device and the thread eyelet during the thread take-off from the storage drum, and in that the control device is provided by a inside by the Weft-coatable ring is formed, through the inner boundary surface of which light rays can emerge or enter from a transmitter to a receiver in the ring, the cone angle of the ring being open against the storage drum.
  • the transmitter and receiver within the ring are seated in pockets which are sealed off from the inner boundary surface of the ring.
  • the ring of the control device must be made of transparent material, for example plexiglass, so that the light rays from the transmitter or receiver in a pocket can pass through the material of the ring unhindered to the inner boundary surface of the ring.
  • At least one pair of sensors consisting of a light transmitter and light receiver is advantageously arranged in the ring of the control device in such a way that the light beams from the transmitter to the receiver form a chord within a circle lying in the inner boundary surface.
  • the radiation axes of the transmitter and receiver together with the chord form the angle of refraction of the light as it passes through the inner boundary surface.
  • the transmitter and receiver can be arranged side by side so that the light rays from the transmitter are reflected from the projection to the receiver inside the ring after passing through the inner boundary surface of the ring.
  • several sensors each consisting of a transmitter and a receiver, can also be present in the ring.
  • the sensors are located in bores within the ring, which are open against the inside of the ring. Since the weft thread is pulled from the The storage drum brushes against the inside of the ring, which limits the thread balloon and causes it to deflect through the ring. If the ring is made of soft material, the edge of the ring causing the thread deflection is protected against wear by an annular insert made of hard material.
  • the weft thread 10 to be processed in the weaving machine 30 is drawn off from a yarn bobbin 100 by the weft thread store 1, in that a winder 12 winds the weft thread in several turns on a stationary drum 11, whereupon the weft thread 10 through the control device 19 and the blowing nozzle 33 into the through the Warp threads 31 and 32 of the weaving machine 30 formed shed is entered.
  • the weft thread enters the weft thread store 1 through the funnel 172 of the winder shaft 17 and then passes through the winder 12 which is fastened in the winder shaft and which is formed from the eyelets 121 and 122 and the tube 120 located therebetween.
  • a rod 173 is located diametrically opposite the winder as a mass balance.
  • the winder shaft 17 is mounted in the bearings 171 in the housing 15 and is driven by a controlled electric motor 13 via the belt drive 140, 141 and 142.
  • the drum 11 of the weft thread store is mounted on the winder shaft by means of the radial bearing 18. It is prevented from rotating by magnet pairs 16, one of which is located in the housing 15 and another in the drum 11.
  • the drum shell 113 of the drum extends only partially over the circumference of the drum.
  • the drum is formed by brackets 110, the bent ends of which converge radially at flange 111.
  • the flange 111 serves to hold the stirrups 110 in place and enables radial adjustment of the stirrups so that the drum circumference can be changed in accordance with the weft thread length required in the weaving machine 30.
  • the weft thread After the weft thread has been deposited on the conical section 115 of the drum 11, the weft thread turns slide further to the right in FIG. 2 onto the cylindrical section of the drum 11, in order then to be withdrawn discontinuously.
  • the start and end of the removal process are controlled by the locking pin 21, which can be moved radially against the stop 22 in the drum 11 by the electromagnet 20.
  • the magnet 20 has a connecting piece 23 for compressed air, which is used for cooling and damping the magnet armature.
  • the control device 19 is fastened to the cap 112 by means of the bolts 114 and is essentially formed from the control ring 190, the transmitter 191 and the receiver 192.
  • the control ring 190 is preferably made of transparent material, for example plexiglass.
  • the balloon of the running weft thread is limited on its inside.
  • the trailing edge of the control ring 190 is protected by the wear ring 193, which is made of hardened steel or ceramic, for example.
  • the control ring is axially adjustable by means of a displacement of the bolts 114, as a result of which the weft thread running off can be more or less braked.
  • the transmitter 191 or 191 ⁇ forms a light barrier with the receiver 192.
  • Transmitter 191 and receiver 192 are each surrounded by a jacket 194. Since the beam path 195 or 195 ⁇ according to FIG. 4 is broken when the beams pass into the interior of the control ring 190 or out of the control ring, the transmitter 191 and the receiver 192 must be arranged in accordance with the angles of refraction of the beams.
  • the beam paths 195 and 195 ⁇ according to FIG. 4 are briefly interrupted by the weft thread 10 running from the drum 11, whereupon signals are sent to the amplifiers A and B to the evaluation unit W.
  • the evaluation unit W forwards a signal to the controller SS for the magnet 20 when a certain number of regular pulses have been registered in the evaluation unit W. is.
  • the locking pin 21 is pressed against the stop 22 by means of the magnet 20, as a result of which the thread 10 is pulled off the drum 11 to a standstill.
  • FIG. 5 and 6 another embodiment of a weft thread store according to the invention is shown.
  • the light beam from the transmitter 191 or 191 ⁇ is reflected by a reflector cone 24 according to Fig. 5.6 to a receiver 192 or 192 ⁇ located directly next to the transmitter.
  • a receiver 192 or 192 ⁇ located directly next to the transmitter.
  • only one signal is received alternately in the counters A and B when the weft thread is withdrawn from the drum 11 of the weft thread store 1.
  • Fig. 1 the control of the electric motor 13 for the winder 12 of the weft thread is shown.
  • the electric motor 13 has the task of driving the winder 12 via the belt drive 14 in such a way that the number of thread windings drawn off the drum 13 is immediately replaced by new winding of weft thread from the bobbin 100, so that there are always sufficient thread windings on the drum 11 .
  • the evaluation unit W continuously reports the number of effectively drawn thread turns to the comparator V, which on the other hand registers the number of new thread turns for the electric motor via the sensor 125 or in response from the control SE for the electric motor.
  • the difference value between newly placed thread turns and drawn thread turns is transmitted from the comparator to the controller R, which compares the difference value from the comparator V with the target value from the input device SW and, depending on the result, issues control commands to the control SE of the electric motor.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
EP88810186A 1987-04-08 1988-03-22 Dispositif d'emmagasinage de fil de trame pour un métier à tisser Expired - Lifetime EP0286590B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH134787 1987-04-08
CH1347/87 1987-04-08

Publications (2)

Publication Number Publication Date
EP0286590A1 true EP0286590A1 (fr) 1988-10-12
EP0286590B1 EP0286590B1 (fr) 1991-05-08

Family

ID=4208354

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88810186A Expired - Lifetime EP0286590B1 (fr) 1987-04-08 1988-03-22 Dispositif d'emmagasinage de fil de trame pour un métier à tisser

Country Status (4)

Country Link
US (1) US4852617A (fr)
EP (1) EP0286590B1 (fr)
JP (1) JPS63270838A (fr)
DE (1) DE3862671D1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0401699A3 (fr) * 1989-06-06 1991-01-16 L.G.L. ELECTRONICS S.p.A. Dispositif pour compter les enroulements se déroulant d'un fournisseur de fil de trame dans un métier à tisser
WO1992003604A1 (fr) * 1990-08-21 1992-03-05 Iro Ab Dispositif d'amenee et de mesure du fil de trame et son procede de commande
NL1014729C2 (nl) * 2000-03-23 2001-09-25 Te Strake Bv Werkwijze voor het opnemen en tellen van van een trommel aflopende wikkelingen, alsmede een inrichting voor het uitvoeren van deze werkwijze.
WO2005028351A1 (fr) * 2003-08-29 2005-03-31 Iro Ab Appareil d'alimentation mesureur

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3911411A1 (de) * 1989-04-07 1990-10-11 Iro Ab Elektronisch gesteuertes schussfaden-verarbeitungs-aggregat
JP2796384B2 (ja) * 1989-12-22 1998-09-10 津田駒工業株式会社 ドラム式緯糸測長貯留装置の解舒センサ
EP0505317A1 (fr) * 1991-03-19 1992-09-23 Gebrüder Sulzer Aktiengesellschaft Dispositif de guidage dans un métier à tisser avec des bobines de trames fixes
JPH04135988U (ja) * 1991-05-30 1992-12-17 株式会社豊田中央研究所 エアジエツト織機における緯糸供給速度測定装置
SE469448B (sv) * 1991-09-27 1993-07-05 Rydborn S A O Optisk oevervakningsanordning foer att detektera om en traad aer i roerelse
DE19609095A1 (de) * 1996-03-08 1997-09-11 Iro Ab Fadenliefergerät
IT1292277B1 (it) * 1997-04-24 1999-01-29 Lgl Electronics Spa Tastatore ottico perfezionato per la sorveglianza della riserva di filato negli apparecchi alimentatori di trama ed apparecchio
ITTO20010013A1 (it) * 2001-01-12 2002-07-12 Lgl Electronics Spa Metodo e dispositivo per il controllo della riserva di trama negli alimentatori di trama a telai di tessitura ad inserzione meccanica includ
ITTO20010569A1 (it) * 2001-06-14 2002-12-14 Lgl Electronics Spa Dispositivo di regolarizzazione dello svolgimento delle spire di filodella riserva di trama, dal tamburo degli alimentatori di trama per te
ITMI20111983A1 (it) 2011-11-02 2013-05-03 Btsr Int Spa Dispositivo alimentatore positivo per alimentare a tensione costante fili metallici
ITMI20112046A1 (it) * 2011-11-11 2013-05-12 Btsr Int Spa Dispositivo alimentatore di filo ad accumulo perfezionato
ITMI20112091A1 (it) 2011-11-17 2013-05-18 Btsr Int Spa Alimentatore di filo, del tipo ad accumulo e con freno magnetico
ITMI20112267A1 (it) 2011-12-15 2013-06-16 Btsr Int Spa Dispositivo di alimentazione di filo ad una macchina tessile
ITMI20112369A1 (it) 2011-12-23 2013-06-24 Btsr Int Spa Metodo e dispositivo ad accumulo di filato per alimentare un filo senza creare torsioni dello stesso
ITMI20112414A1 (it) 2011-12-28 2013-06-29 Btsr Int Spa Sistema e metodo perfezionati per alimentare a tensione costante fili metallici

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2005739A (en) * 1977-09-29 1979-04-25 Savio & C Spa Device of controlling the tension of yarn unwinding from ayarn supporting body
WO1982004446A1 (fr) * 1981-06-17 1982-12-23 Peeters Johan T Dispositif de preparation de la trame pour metiers a tisser pneumatiques
EP0111308A2 (fr) * 1982-12-13 1984-06-20 Nissan Motor Co., Ltd. Détecteur pour contrôler l'alimentation du fil de trame

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH472518A (de) * 1966-12-13 1969-05-15 Sulzer Ag Webmaschine mit Schussfaden-Zwischenspeicher
CH523196A (de) * 1970-05-14 1972-05-31 Sulzer Ag Speichereinrichtung für fadenartiges Material
JPS5669410A (en) * 1979-11-09 1981-06-10 Ntn Toyo Bearing Co Ltd Automatic lash adjuster for sealed-up valve and method of assembling said adjuster
JPS6034688U (ja) * 1983-08-12 1985-03-09 内藤　逸司 てんぷら油過熱による火災予知警報器
BE903115A (nl) * 1985-08-26 1986-02-26 Picanol Nv Optische inslagwachter voor weefmachines met een u-vormig riet

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2005739A (en) * 1977-09-29 1979-04-25 Savio & C Spa Device of controlling the tension of yarn unwinding from ayarn supporting body
WO1982004446A1 (fr) * 1981-06-17 1982-12-23 Peeters Johan T Dispositif de preparation de la trame pour metiers a tisser pneumatiques
EP0111308A2 (fr) * 1982-12-13 1984-06-20 Nissan Motor Co., Ltd. Détecteur pour contrôler l'alimentation du fil de trame

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0401699A3 (fr) * 1989-06-06 1991-01-16 L.G.L. ELECTRONICS S.p.A. Dispositif pour compter les enroulements se déroulant d'un fournisseur de fil de trame dans un métier à tisser
WO1992003604A1 (fr) * 1990-08-21 1992-03-05 Iro Ab Dispositif d'amenee et de mesure du fil de trame et son procede de commande
NL1014729C2 (nl) * 2000-03-23 2001-09-25 Te Strake Bv Werkwijze voor het opnemen en tellen van van een trommel aflopende wikkelingen, alsmede een inrichting voor het uitvoeren van deze werkwijze.
WO2001071077A1 (fr) * 2000-03-23 2001-09-27 Te Strake B.V. Procede de detection et comptage des spires extraites d'une bobine, et dispositif associe
WO2005028351A1 (fr) * 2003-08-29 2005-03-31 Iro Ab Appareil d'alimentation mesureur

Also Published As

Publication number Publication date
DE3862671D1 (de) 1991-06-13
US4852617A (en) 1989-08-01
EP0286590B1 (fr) 1991-05-08
JPS63270838A (ja) 1988-11-08

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