EP0247967A1 - Dispositif de stockage de fil de trame pour un métier à tisser - Google Patents

Dispositif de stockage de fil de trame pour un métier à tisser Download PDF

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Publication number
EP0247967A1
EP0247967A1 EP87810162A EP87810162A EP0247967A1 EP 0247967 A1 EP0247967 A1 EP 0247967A1 EP 87810162 A EP87810162 A EP 87810162A EP 87810162 A EP87810162 A EP 87810162A EP 0247967 A1 EP0247967 A1 EP 0247967A1
Authority
EP
European Patent Office
Prior art keywords
drum
thread
circumference
weft
memory according
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
EP87810162A
Other languages
German (de)
English (en)
Other versions
EP0247967B1 (fr
Inventor
Paul Lincke
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 EP0247967A1 publication Critical patent/EP0247967A1/fr
Application granted granted Critical
Publication of EP0247967B1 publication Critical patent/EP0247967B1/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

Definitions

  • the invention relates to a weft thread store for weaving machines, to which thread is fed from a supply spool and from which thread is drawn discontinuously for entry into the shed of a weaving machine, with a stationary drum supported on its outer circumference for receiving a thread supply to be stored, and with a the drum circumference rotating winding member with a driving link for the weft.
  • such a weft storage device is dealt with as a thread transport and storage device. Its function is limited to providing a sufficient thread supply for the weft thread insertion between the warp threads of a weaving machine, without measuring the weft thread according to the fabric width. Such a memory would not be suitable for use on air jet looms, for example, since the weft thread must have a defined length during the entry in the shed so that an unnecessarily large excess of thread on the catch side of the loom after the entry can be avoided.
  • the invention which solves this problem, is characterized in that the driving link can be switched on and off according to a program.
  • the driving element can also be arranged several times on the rotating winding element.
  • the drum is supported on the outer circumference, for example with magnets or brushes, for example on conical ends of the drum, and at the same time it is secured against rotation.
  • the winding element for the weft thread is a constantly rotating ring surrounding the drum circumference, from which at least one driving pin can temporarily engage in a recess in the drum.
  • thread guides are arranged in the axis of the drum, which ensure that the thread runs up and down the conical parts of the drum.
  • At least one controllable thread holding element is attached to the drum circumference, which contributes to the building up or dismantling of the thread winding on the drum.
  • a controllable thread holding element can also be arranged in front of the storage ring.
  • the thread holding members in front of and behind the storage ring are simultaneously designed as means for mounting the drum.
  • the memory described can be used for example for rapier or air weaving machines. It is suitable for single or multi-shot operation.
  • the invention is characterized by a low cost of mechanical means and by the low mass of the driving elements or holding elements for the weft thread to be controlled intermittently.
  • the weft store 1 is usually arranged between the weft bobbin 5 and the loom 4 in looms. It carries the drum bearings l2, l3 and the ring bearing l5 for the winding ring l4 as well as the thread eyelets 6, 7 and the weft thread brakes 2, 3 on a frame l0.
  • the drum ll for storing the weft thread has a conical front and rear drum part ll4, ll5 on.
  • the drum parts have magnetic inlays ll6, ll7 in the case of a magnetic drum bearing, which can be distributed around the circumference as shown in FIG. 2 or can be made rotationally symmetrical in FIG. 2a.
  • the winding ring l4 carries one or more winding magnets l4l, from which winding pins l42 according to arrow l42 Pfeil can be moved into a groove III in the drum ll.
  • a cylindrical part 112 adjoins the groove III for the defined placement of the weft thread with the aid of the winding pin 142. In the thread running direction to the right in FIG. 1, this is followed by a recess ll3 on the drum circumference, into which a pin l52 according to arrow l52 Magnet can be moved by a magnet l5l.
  • the winding magnets l4l and winding pins l42 and the magnets l5l and pins l52 can be arranged in any number distributed around the drum circumference.
  • the magnets can be excited by the control device 43 via connecting lines, the contact tracks l53 and l54 and the sliding contacts l55 and l56.
  • magnetic means for actuating the winding pin l42 or the pin l52 for example as pneumatically operated actuators can be provided.
  • a brush can be arranged on the winding ring l4, which lies lightly on the circumference of the drum and ensures a defined weft thread tension during the thread run. The direction of the thread is indicated by arrow 52.
  • the winding ring l4 is a pulley l45 which is driven by a drive belt l44.
  • the winding ring l4 is held in the ring bearing l5 via the bearings l57 and l58.
  • the drum bearings l2 and l3 act on the magnetic inserts ll6 and ll7 of the drum ll via magnets l2l and l3l. As shown in FIG. 2, the magnets can be arranged partially or distributed over the entire circumference of the drum. The bearing forces come about through opposing magnetic fields of magnets l3l and l2l and magnetic deposits ll7 and ll6. At the same time, the magnets in the arrangement in FIG. 2 can secure the drum against rotation.
  • Fig. L the working position of the memory is shown towards the end of the storage process shortly before the weft insertion.
  • the weft brake 2 is open while the weft brake 3 is closed.
  • the winding pin for the weft thread l42 and the pin l52 for holding the thread roll on the drum circumference are in the lower position in engagement with the drum ll.
  • the brake 3 is opened while the brake 2 is closed.
  • the winding magnet l4l and the magnet l5l or the magnets with a multiple arrangement keep the pins l42 and l52 withdrawn when the weft is inserted, whereupon the weft thread supply on the storage device remains open until the weft thread is stretched a meridian line of the drum 11 can be drawn off through the main nozzle 4l.
  • the weft insertion can also be carried out by a gripper member.
  • the stored thread winding 5l can also be held on the drum circumference for any length of time, the pins l52 remaining in engagement and the winding pins l42 having to be retracted into the winding ring l4.
  • a space-saving disc rotor motor can be arranged around the drum circumference.
  • the control of the winding magnets l4l and the magnets l5l for holding the winding can be accomplished by means of a weft sensor in connection with the control device 43, which ensures that the weft thread length stored by the drum ll is correctly measured.
  • the memory function In multi-shot mode, the memory function must be controlled by the control device 43 with the pattern control of the machine, e.g. can be coordinated via the control of the dobby 42.
  • FIG. 3 shows how the weft thread is deposited on the circumference of the drum from the stretched, extended position after engagement of the winding pins 142 or the pins 152.
  • the dashed layers of the weft thread 52 represent its position at short time intervals, during which the winding pins 142 or pin 192 move in the direction of the arrow.
  • FIG. 5 shows a simplified embodiment of the weft thread storage device with the drum 11 being supported by brushes l22 and l32 in the drum bearings l2 and l3.
  • the weft thread 52 describes a cone during winding or unwinding.
  • the recess ll3 is designed as a groove in which a brush ll8 or Bridges ll9 are embedded. Slipping of individual weft layers into the groove ll3 can thus be avoided.
  • this design allows a partial positional deviation of the drum, for example twisting around the axis, which can be permitted with robust weft yarns.
  • the driving pin l42 is advantageously designed to be elastically resilient, as shown in FIG. 6, so that weft thread tension peaks are avoided when the winding pin l42 takes it suddenly.
  • the drum 11 When the drum 11 is arranged vertically, it is carried by the brush I22 according to FIG. 7.
  • the contact pressure of the drum ll on the brush l22 can be adjusted as desired.
  • the vertical mounting of the drum II has the advantage that no significant resistance between the brush I32 and the drum II has to be overcome when storing on the top of the drum.
  • the brush l32 is used here only to brake the weft thread when it is drawn off and to center the drum ll. In vertical drum storage, the weft thread is deflected by a deflecting element 8 in the direction of the main nozzle 4l.
  • a magnet l5la for holding the weft thread winding is arranged on the inlet side in front of the winding ring l4 in the weft direction and is switched on after the winding process by pulling the winding pin l42 out of the groove III in FIG. 4 has ended.
  • Drum bearings l2 and l3 in this case have the same function as the pins l52 and l52a, which are intended to prevent the thread winding 5l from slipping off after the storage process has ended and before being unloaded.
  • FIGS. 9a and 9b instead of ring-shaped magnets l2l and l3l, clamping claws l6 and l7 are arranged in the drum bearings l2, l3, which according to the program can be inserted into grooves l6l and l7l of the drum ll, while holding the drum and at the same time Secure the weft thread 52 around the circumference of the drum.
  • FIG. 9c shows the arrangement of the clamping claws l6 with respect to the drum ll in a view in the axial direction.
  • the clamping claws can have segments attached as shown in FIG. 9c, with which the drum 11 can be held over the entire circumference.
  • the drum II is preferably made of plastic which is coated with a wear-resistant layer, e.g. Chrome, can be coated.
  • a wear-resistant layer e.g. Chrome

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Forwarding And Storing Of Filamentary Material (AREA)
EP87810162A 1986-05-23 1987-03-20 Dispositif de stockage de fil de trame pour un métier à tisser Expired - Lifetime EP0247967B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2103/86A CH670263A5 (fr) 1986-05-23 1986-05-23
CH2103/86 1986-05-23

Publications (2)

Publication Number Publication Date
EP0247967A1 true EP0247967A1 (fr) 1987-12-02
EP0247967B1 EP0247967B1 (fr) 1990-07-18

Family

ID=4225942

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87810162A Expired - Lifetime EP0247967B1 (fr) 1986-05-23 1987-03-20 Dispositif de stockage de fil de trame pour un métier à tisser

Country Status (5)

Country Link
US (1) US4744394A (fr)
EP (1) EP0247967B1 (fr)
JP (1) JPS62282042A (fr)
CH (1) CH670263A5 (fr)
DE (1) DE3763751D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5271435A (en) * 1990-02-05 1993-12-21 Roj Electrotex S.P.A. Weft feeder with bristle containing stopping pin cavity

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3628485A1 (de) * 1986-08-22 1988-02-25 Iro Ab Geraet zum speichern von garn
BE905471A (nl) * 1986-09-23 1987-03-23 Picanol Nv Werkwijze om bij weefmaschines de lengte van de in de gaap te brengen inslagdraad te regelen en inrichtingen hierbij aangewend.
RU2091521C1 (ru) 1990-03-12 1997-09-27 Иро Аб Устройство торможения нити на выходной стороне средства подачи нити
US5110061A (en) * 1990-12-03 1992-05-05 Berry Roger P Pneumatic reel fiber pay out system
JP2650816B2 (ja) * 1992-07-15 1997-09-10 日立金属株式会社 織機用横糸巻取機およびそれに使用されるマグネット部材
DE9307967U1 (de) * 1993-05-26 1994-10-06 Palitex Project-Company GmbH, 47804 Krefeld Doppeldraht-Zwirnspindel
DE4324412C2 (de) * 1993-07-21 1998-03-19 Mayer Textilmaschf Vorrichtung zur Einstellung der Fadenspannung
US5546994A (en) * 1994-10-14 1996-08-20 Sobrevin Societe De Brevets Industriels-Etablissement Thread storage drum with frustoconical brake strip
JP3884381B2 (ja) * 2000-10-18 2007-02-21 イーロパ アクチェンゲゼルシャフト 供給装置
US7249725B2 (en) * 2002-11-22 2007-07-31 Sultex Ag Thread carrying apparatus and a textile machine, in particular a weaving machine, including a thread carrying apparatus for this kind
EP2169099A1 (fr) * 2008-09-25 2010-03-31 L.G.L. Electronics S.p.A. Dispositif d'alimentation négative de fils avec un dispositif de freinage de trame
JP5915219B2 (ja) * 2012-02-07 2016-05-11 村田機械株式会社 糸巻取装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH439161A (de) * 1965-06-25 1967-06-30 Sulzer Ag Webmaschine mit Schussfadenzwischenspeicher
US3759455A (en) * 1972-09-28 1973-09-18 Wesco Industries Corp Filament feeding and storage device
DE3123760A1 (de) * 1980-06-17 1982-02-25 Maschinenfabrik Rüti AG, 8630 Rüti, Zürich Fadenliefervorrichtung fuer textilmaschinen und verfahren zum betrieb der fadenliefervorrichtung
EP0148356A2 (fr) * 1982-09-30 1985-07-17 Aktiebolaget Iro Dispositif d'emmagasinage et d'alimentation de fil
DE3516458A1 (de) * 1985-05-08 1986-11-13 W. Schlafhorst & Co, 4050 Mönchengladbach Angetriebener fadenspeicher

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4033384A (en) * 1974-08-26 1977-07-05 Crompton & Knowles Corporation Means for and method of supplying weft yarn to an outside filling supply loom
CS247380B1 (en) * 1983-06-15 1986-12-18 Vladimir Svaty Method and device for weft thread control on non-orthodox weaving machine
JPS60231848A (ja) * 1984-04-24 1985-11-18 津田駒工業株式会社 よこ糸測長貯留装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH439161A (de) * 1965-06-25 1967-06-30 Sulzer Ag Webmaschine mit Schussfadenzwischenspeicher
US3759455A (en) * 1972-09-28 1973-09-18 Wesco Industries Corp Filament feeding and storage device
DE3123760A1 (de) * 1980-06-17 1982-02-25 Maschinenfabrik Rüti AG, 8630 Rüti, Zürich Fadenliefervorrichtung fuer textilmaschinen und verfahren zum betrieb der fadenliefervorrichtung
EP0148356A2 (fr) * 1982-09-30 1985-07-17 Aktiebolaget Iro Dispositif d'emmagasinage et d'alimentation de fil
DE3516458A1 (de) * 1985-05-08 1986-11-13 W. Schlafhorst & Co, 4050 Mönchengladbach Angetriebener fadenspeicher

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5271435A (en) * 1990-02-05 1993-12-21 Roj Electrotex S.P.A. Weft feeder with bristle containing stopping pin cavity

Also Published As

Publication number Publication date
EP0247967B1 (fr) 1990-07-18
US4744394A (en) 1988-05-17
JPS62282042A (ja) 1987-12-07
DE3763751D1 (de) 1990-08-23
CH670263A5 (fr) 1989-05-31

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