EP0467475A1 - Procédé et dispositif pour séparer la mèche enroulée sur un tube de bobine des ailettes, et pour fixer l'extrémité de mèche sur le tube de bobine pendant le changement dans un râtelier à ailettes ou machine similaire - Google Patents

Procédé et dispositif pour séparer la mèche enroulée sur un tube de bobine des ailettes, et pour fixer l'extrémité de mèche sur le tube de bobine pendant le changement dans un râtelier à ailettes ou machine similaire Download PDF

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Publication number
EP0467475A1
EP0467475A1 EP91201878A EP91201878A EP0467475A1 EP 0467475 A1 EP0467475 A1 EP 0467475A1 EP 91201878 A EP91201878 A EP 91201878A EP 91201878 A EP91201878 A EP 91201878A EP 0467475 A1 EP0467475 A1 EP 0467475A1
Authority
EP
European Patent Office
Prior art keywords
roving
cops
flyers
carriage
coils
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.)
Withdrawn
Application number
EP91201878A
Other languages
German (de)
English (en)
Inventor
Luigi Pezzoli
Luigi Calabria
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.)
Fratelli Marzoli and C SpA
Original Assignee
Fratelli Marzoli and C SpA
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 Fratelli Marzoli and C SpA filed Critical Fratelli Marzoli and C SpA
Publication of EP0467475A1 publication Critical patent/EP0467475A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H9/00—Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine
    • D01H9/02—Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine for removing completed take-up packages and replacing by bobbins, cores, or receptacles at take-up stations; Transferring material between adjacent full and empty take-up elements
    • D01H9/16—Yarn-severing arrangements, e.g. for cutting transfer tails; Separating of roving in flyer
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
    • D01H1/14—Details
    • D01H1/38—Arrangements for winding reserve lengths of yarn on take-up packages or spindles, e.g. transfer tails

Definitions

  • the present invention relates to a method and apparatus for separating from flyers the roving wound onto cops and securing the end of the roving on the cops at the time of removal in a fly frame or similar machine.
  • the technical task of the present invention intends to fulfil is to provide a procedure and create an apparatus to separate the roving from the flyers and position the end of the roving on the cops so that it will not come undone or unroll accidentally from the cops, all in an automatic way and with a considerable reduction in time, since this can be done contemporaneously for all the cops on the fly frame.
  • a method of the type in question characterised in that on completion of winding the roving onto the cops, the stationary cops are lowered until the top end portion of the relative bobbins are at the height of the compressor of the respective flyers and then made to rotate to wind under tension and bind a few coils of roving on the said end portion, the cops being finally moved away from the flyers, causing the roving to snap in the section between the said end and the relative flyer.
  • an apparatus in a fly frame or similar machine comprising a cop carriage which can be lowered and raised and rotating flyers as well as drive means to rotate the cops and flyers and move the cop carriage, characterised in that the said means are connected to a control unit capable of lowering the carriage with the secured cops to a level at which the top end portion of the cop bobbins are at the height of the compressor of the relative flyers, of rotating the cops for a few turns to wind under tension and bind a few coils of roving onto the said end portion, as well as again moving the carriage to a position between the respective cops and flyers where the roving is snapped.
  • the top end portion of the bobbins i.e.
  • the opposite end to the end engaged by the cop-turner may have a suitable annular groove capable of receiving and holding by friction the roving wound round or a roughened or similar portion for the roving, so as to ensure that the end of roving is secured on the bobbin.
  • the apparatus may be set to rotate the flyers and cops with no supply, so as to impart an additional twist to the roving, before lowering the cops to the said level, so as to create a reserve of roving capable of ensuring that breakage of the same occurs only after the end has been wound on, in the section between the end of the bobbin and the respective flyer.
  • Lodging the end of the roving in a groove or suchlike on the cop bobbin ensures a firm anchorage until removal and for the entire duration of transportation, without the need for special means associated with the conveyor to secure the roving on each cop.
  • Fig. 1 shows a fly frame of a known type, indicated generically by 1 and comprising a carriage 2 carrying a plurality of cop-turners 3 according to a known arrangement, capable of rotating the respective bobbins 4 onto which is wound roving 5 supplied by means of rotating flyers 6.
  • Carriage 2 can be lowered and raised since it is associated with racks such as the one shown by 7, guided vertically and engaged with respective pinions 8 driven in rotation by a motor schematically indicated by M1.
  • the arrangement may be such that in the lowest position carriage 2 inclines as indicated by dashed lines, bringing cops 9 into an inclined position for removal, in a known way.
  • Cop-turners 3 are made to rotate in a known way by means of a gear transmission such as that shown by 10, driven in rotation by a motor M2.
  • the mechanical connection between the transmission elements on carriage 2 and those on the stationary framework of frame 1 is achieved in such a way as to maintain such connection in all the positions of carriage 2, according to a technique which is known and not therefore shown in detail.
  • Flyers 6 are made to rotate by transmission 11 which is powered by a motor indicated schematically by M3.
  • Roving 5 reaches flyers 6 from a drafting unit 12 of a known type, from which the sliver of fibres 13 comes from supply bins 14.
  • the drive rollers of drafting unit 12 are made to rotate by a motor M4.
  • Motors M1, M2, M3 and M4 are connected to a control unit 15 capable of actuating such motors to carry out the various winding operations, but also of actuating the motors according to certain sequences or methods which shall be described later, so as automatically to achieve separation and securing of roving 5 on the respective cops 9 when the winding stage is completed, before removing the cops and replacing them with empty bobbins 4.
  • cops 9 After roving 5 has been wound onto cops 9, the latter are in the position shown in Fig. 2a, with compressor 16 of the respective flyers 6 at an intermediate height in cylindrical part 9a of cops 9.
  • Cops 9 are then lowered by carriage 2 by means of a command to motor M1, until the top end portion 4a of the relative bobbins 4 is at the height of compressor 16 of the respective flyers 6 (Fig. 2b). In this position a section 5a of roving 5 is created from the last wound coil of cop 9 towards the end portion 4a of bobbin 4.
  • Cops 9, by means of motor M2, are now rotated a few turns, so as to wind under tension and bind some coils of roving 5 onto the end portion of the respective bobbins 4 (Fig. 2c).
  • bobbins 4 have, on the said portion, an annular groove 17 (Fig. 4), preferably rectangular in section, capable of receiving the said coils of roving 5 and effectively retaining the same since they are taut and squeezed in groove 17.
  • end portion 4a of bobbins 4 may have an area which is roughened or knurled or otherwise machined 18 (Fig. 5) to create a retaining action or an effective anchorage of wound roving 5.
  • control unit 15 further lowers cop carriage 2, to a position such that the top of bobbins 4 is at a lower level than the minimum level of flyers 6 and there is no longer any possibility of interference between the latter and the bobbins.
  • carriage 2 may be inclined so as finally to distance the cops from the relative flyers 6, causing roving 5 to snap in the section between the top end of bobbins 4 and the respective flyers 6 (Fig. 2d),
  • inclining carriage 2 it would also be possible to move carriage 2 parallel to itself in a horizontal or substantially horizontal direction, appropriately guiding the carriage, until the cops are in the snapping position shown by dashed and dotted lines in Fig. 2d.
  • the wound part of the cops is in no way damaged and can thus be correctly unwound in the spinning machine downstream, without irregularities.
  • bobbins 4 could also have a second groove, designed to receive a second group of coils for anchoring the roving.
  • the surface of bobbins 4 could be treated so as to enable the roving to be secured without the need for a special groove.
  • the fly frame could obviously also be of a type with automatic removal, without this involving any modification to the method and apparatus according to the invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Preliminary Treatment Of Fibers (AREA)
EP91201878A 1990-07-17 1991-07-16 Procédé et dispositif pour séparer la mèche enroulée sur un tube de bobine des ailettes, et pour fixer l'extrémité de mèche sur le tube de bobine pendant le changement dans un râtelier à ailettes ou machine similaire Withdrawn EP0467475A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT02096290A IT1242977B (it) 1990-07-17 1990-07-17 Procedimento ed apparecchiatura per separare dalle alette lo stoppino avvolto sulle spole e fermare il capo dello stoppino sulle spole all'atto della levata in un banco a fusi o simile
IT2096290 1990-07-17

Publications (1)

Publication Number Publication Date
EP0467475A1 true EP0467475A1 (fr) 1992-01-22

Family

ID=11174681

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91201878A Withdrawn EP0467475A1 (fr) 1990-07-17 1991-07-16 Procédé et dispositif pour séparer la mèche enroulée sur un tube de bobine des ailettes, et pour fixer l'extrémité de mèche sur le tube de bobine pendant le changement dans un râtelier à ailettes ou machine similaire

Country Status (3)

Country Link
EP (1) EP0467475A1 (fr)
JP (1) JPH06316818A (fr)
IT (1) IT1242977B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4231887A1 (de) * 1992-09-21 1994-03-24 Grosenhainer Textilmaschbau Verfahren zum Trennen von Vorgarn beim Abziehen von Spulen an Vorspinnmaschinen
EP0698678A1 (fr) * 1994-07-05 1996-02-28 FRATELLI MARZOLI & C. S.p.A. Procédé et appareil pour la rupture de la mèche envidée sur les bobines d'un métièr à filer à ailettes et pour attacher l'extrémité de la mèche sur la bobine avant la levée automatique des bobines
EP3140440B1 (fr) * 2014-05-08 2019-09-04 Maschinenfabrik Rieter AG Machine textile et procédé pour faire fonctionner une telle machine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH427597A (de) * 1964-09-02 1966-12-31 Hamel Edmund Verfahren und Einrichtung zum Absondern von Fadenanfängen beim Aufwärtszwirnen
FR2303104A1 (fr) * 1975-03-05 1976-10-01 Toyoda Automatic Loom Works Procede et dispositif pour sectionner une meche au moment de la levee dans un metier continu a ailettes
EP0112303A1 (fr) * 1982-12-17 1984-06-27 OFFICINE GAUDINO di P. GAUDINO & C. S.a.s. Dispositif automatique pour le remplacement simultané des bobines pleines sur un métier à filer ou à retordre
DE3809564A1 (de) * 1988-03-22 1989-10-05 Schlafhorst & Co W Verfahren und vorrichtung zur herstellung eines endwickels an auf huelsen gewickelten textilspulen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH427597A (de) * 1964-09-02 1966-12-31 Hamel Edmund Verfahren und Einrichtung zum Absondern von Fadenanfängen beim Aufwärtszwirnen
FR2303104A1 (fr) * 1975-03-05 1976-10-01 Toyoda Automatic Loom Works Procede et dispositif pour sectionner une meche au moment de la levee dans un metier continu a ailettes
EP0112303A1 (fr) * 1982-12-17 1984-06-27 OFFICINE GAUDINO di P. GAUDINO & C. S.a.s. Dispositif automatique pour le remplacement simultané des bobines pleines sur un métier à filer ou à retordre
DE3809564A1 (de) * 1988-03-22 1989-10-05 Schlafhorst & Co W Verfahren und vorrichtung zur herstellung eines endwickels an auf huelsen gewickelten textilspulen

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, vol. 10, no. 77 (M-464)[2134], 26th March 1986; & JP-A-60 218 263 (TEIJIN) 31-10-1985 *
PATENT ABSTRACTS OF JAPAN, vol. 13, no. 313 (C-618)[3661], 17th July 1989; & JP-A-1 097 225 (TOYOTA AUTOM. LOOM WORKS) 14-04-1989 *
PATENT ABSTRACTS OF JAPAN, vol. 13, no. 313 (C-618)[3661], 17th July 1989; & JP-A-1 097 226 (TOYOTA AUTOM. LOOM WORKS) 14-04-1989 *
PATENT ABSTRACTS OF JAPAN, vol. 9, no. 112 (C-281)[1835], 16th May 1985; & JP-A-60 002 722 (TOYODA JIDO SHOKKI SEISAKUSHO K.K.) 09-01-1985 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4231887A1 (de) * 1992-09-21 1994-03-24 Grosenhainer Textilmaschbau Verfahren zum Trennen von Vorgarn beim Abziehen von Spulen an Vorspinnmaschinen
WO1994006955A1 (fr) * 1992-09-21 1994-03-31 Grossenhainer Textilmaschinenbau Gmbh Procede visant a separer des fils meches lors de l'enlevement de bobines se trouvant sur des bancs a broches
EP0698678A1 (fr) * 1994-07-05 1996-02-28 FRATELLI MARZOLI & C. S.p.A. Procédé et appareil pour la rupture de la mèche envidée sur les bobines d'un métièr à filer à ailettes et pour attacher l'extrémité de la mèche sur la bobine avant la levée automatique des bobines
US5524428A (en) * 1994-07-05 1996-06-11 Fratelli Marzoli & C. S.P.A. Method and apparatus for separating the roving wound on packages from the flyers of a roving frame or the like, and for securing the roving end to the packages before doffing
EP3140440B1 (fr) * 2014-05-08 2019-09-04 Maschinenfabrik Rieter AG Machine textile et procédé pour faire fonctionner une telle machine

Also Published As

Publication number Publication date
IT9020962A0 (it) 1990-07-17
IT9020962A1 (it) 1992-01-17
IT1242977B (it) 1994-05-18
JPH06316818A (ja) 1994-11-15

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