EP2674380B1 - Dispositif épisseur permettant d'épisser des fils et machine de bobinage - Google Patents

Dispositif épisseur permettant d'épisser des fils et machine de bobinage Download PDF

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Publication number
EP2674380B1
EP2674380B1 EP13171365.3A EP13171365A EP2674380B1 EP 2674380 B1 EP2674380 B1 EP 2674380B1 EP 13171365 A EP13171365 A EP 13171365A EP 2674380 B1 EP2674380 B1 EP 2674380B1
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EP
European Patent Office
Prior art keywords
yarn
splicer
splicing
lever
shears
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.)
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Application number
EP13171365.3A
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German (de)
English (en)
Other versions
EP2674380A1 (fr
Inventor
Roberto Badiali
Mauro Del Pup
Moreno Floriduz
Dante Zancai
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.)
Savio Macchine Tessili SpA
Original Assignee
Savio Macchine Tessili SpA
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Publication of EP2674380A1 publication Critical patent/EP2674380A1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H69/00—Methods of, or devices for, interconnecting successive lengths of material; Knot-tying devices ;Control of the correct working of the interconnecting device
    • B65H69/06—Methods of, or devices for, interconnecting successive lengths of material; Knot-tying devices ;Control of the correct working of the interconnecting device by splicing
    • B65H69/061—Methods of, or devices for, interconnecting successive lengths of material; Knot-tying devices ;Control of the correct working of the interconnecting device by splicing using pneumatic means
    • B65H69/063—Preparation of the yarn ends
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • the present invention relates to a splicer device for splicing yarns during the winding thereof on a tube in order to achieve the formation of collection packages of the yarn produced or processed by textile machines.
  • the present invention relates to a winding machine comprising such a splicer device too.
  • the yarn collection technique rotatably actuating a tube, idly carried by the spindles of a package-holder arm and drawing back the yarn coming from a follower to wind thereon.
  • the package is thus formed by pulling and winding the yarn on the surface thereof, being rotatably dragged with an underlying motor-driven roller on which the package itself rests.
  • the yarn may be wound at a constant linear speed, independent of the size taken by the package as the winding advances, and only as a function of the rotation speed of said actuating roller.
  • winding machines consist of a plurality of winding stations or units aligned along the front of the machine and provided with common service apparatuses.
  • the winding unit is shown in its essential components in Figure 1 which illustrates a front view thereof.
  • the feeding bobbing 1 is unwound by drawing its yarn 2.
  • the yarn 2 passes through the uncoiling assembly 3, which comprises yarn containment and driving members and a yarn detector, and thus through the yarn tensioner 5 which makes the path of the yarn 2 more or less tortuous and determines the tension thereof.
  • the splicer 6 is found, to which the yarn ends are taken that have to be joined by suction inlets 9 and 10 from the feeding bobbing- and the package-side, respectively.
  • inlet 9 takes the yarn end from the feeding bobbing-side to the splicer 6 and inlet 10 draws the yarn end upwards by drawing it from the package to take it downward and insert it in the splicer.
  • inlet 10 draws the yarn end upwards by drawing it from the package to take it downward and insert it in the splicer.
  • Such inlets operate frequently, both upon yarn interruptions due to the breaking thereof or to the intervention of the following yarn clearer 11, which is located downstream of the splicer 6, and to the depletion of the feeding bobbing 1.
  • the packaged yarn is collected into the package 12, which is rotatably actuated by the actuating cylinder 13, whereon it rests supported by the package-holder arm 14.
  • each winding station depletes a large number of feeding bobbings to form greatly larger-sized packages.
  • a feeding bobbing is depleted in a few minutes, while a package is completed in a little less than one hour.
  • Each feeding bobbing depleted is replaced with a new feeding bobbing, then carrying the yarn 2 thereof to join with the yarn end coming from the package.
  • a feeding bobbing handling system is placed, which feeds the new feeding bobbings to be unwound and discharges the tubes of depleted feeding bobbings, handling even thousands of items per hour.
  • the yarn winding processing consists of the cleaning of the yarn by eliminating defective portions, which are detected and eliminated with the interventions of the yarn clearer 11, then by splicing or joining the two ends of the yarn with the splicer 6 and resuming the unwinding of the feeding bobbing 1.
  • the quality of the yarn produced with the winding therefore depends on the selection carried out by the yarn clearer and the splicing achieved by the splicer 6.
  • the requirements needed for the splicing carried out by the splicer are of a mechanical nature, in terms of splicing resistance, of an aesthetic nature, since the splicing should not be distinguishable along the yarn, and of reliability, in terms of performance consistency of the splicers which equip the winding units.
  • US patent 6,199,360 discloses the actuation of the various members of the splicer with a piston valve which slides and sequentially distributes compressed air to the various members of the splicer.
  • Patent applications WO 2006/42721 and 2007/76908 disclose coordinated actuating means of the pneumatic splicer.
  • European Patent Application EP 0 641 734 A2 discloses a yarn splicer with mechanisms to draw two yarn end portions, to cut these to a predetermined length and to bring them to a splicer to perform splicing by air flow.
  • the technical problem to which the present invention is directed is the controlled actuation of such movements of the splicer 6 in the various steps of the splicing process by simplifying both the device and the process in terms of movements and synchronisms.
  • the device according to the present invention for integrally and concurrently actuating the clamps and shears of the yarns for the cutting thereof provides remarkable advantages in terms of simplicity, cost effectiveness and efficiency.
  • the control and actuation of the clamps and shears are carried out with a pair of pneumatic cylinders 50 and 51 which operate in parallel fed with only one electrovalve 76.
  • the device according to the invention ensures that the yarn ends are safely cut when their clamps are safely closed, thus allowing to work on yarn ends of an accurately predetermined length in the following stages of the splicing process.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)

Claims (13)

  1. Dispositif épisseur (6) permettant d'épisser des fils dans une machine de bobinage dans lequel le fil (2) est alimenté par le bas et enroulé depuis le haut sur une bobine (12) et comprenant des éléments de serrage supérieur (24) et inférieur (25), qui sont adaptés pour recevoir et retenir le fil venant de la bobine (12) et le fil (2) alimenté par le bas, respectivement, de telles pinces (24, 25) étant fixées sur des plaques supérieure (20) et inférieure (21), respectivement, par rapport à une chambre épisseuse (35) permettant d'épisser des fils, et comprenant en outre des éléments de cisaillement supérieur (28) et inférieur (29), qui sont adaptés pour couper le fil (2) alimenté par le bas et le fil venant de la bobine (12), respectivement, caractérisé en ce que
    de telles cisailles (28, 29) sont fixées sur des plaques supérieure (20) et inférieure (21), respectivement, et en ce que
    la pince supérieure (24), qui retient le fil venant de la bobine (12), conjointement avec les cisailles supérieures (28), qui coupent le fil (2) venant par le bas, sont actionnées séquentiellement par un actionneur supérieur (50) qui déploie et rétracte une tige (53), pour d'abord fermer la pince (24) et ensuite pour actionner les cisailles (28), et
    la pince inférieure (25), qui retient le fil venant par le bas, conjointement avec les cisailles inférieures (28), qui coupent le fil (2) venant de la bobine (12), sont actionnées séquentiellement par un actionneur inférieur (51) qui déploie et rétracte une tige (53), pour d'abord fermer la pince (25) et ensuite pour actionner les cisailles (29),
    lesdits actionneurs supérieur et inférieur (50, 51) étant alimentés en parallèle par un dispositif d'alimentation (76) qui est commun aux deux actionneurs supérieur et inférieur (50, 51).
  2. Dispositif épisseur (6) permettant d'épisser des fils selon la revendication 1, dans lequel ladite chambre épisseuse (35) est adaptée pour réaliser un épissage de fil pneumatique.
  3. Dispositif épisseur (6) permettant d'épisser des fils selon la revendication 1 ou 2, dans lequel ledit actionneur supérieur (50) est un cylindre pneumatique supérieur (50) et/ou ledit actionneur inférieur (51) est un cylindre pneumatique inférieur (51).
  4. Dispositif épisseur (6) permettant d'épisser des fils selon la revendication 3, dans lequel lesdits cylindres pneumatiques supérieur et inférieur (50, 51) sont alimentés en parallèle en air comprimé par un dispositif d'alimentation (76) qui est commun aux deux cylindres supérieur et inférieur (50, 51).
  5. Dispositif épisseur (6) permettant d'épisser des fils selon l'une quelconque des revendications précédentes, dans lequel la tige (53), qui se déploie et se rétracte en raison de l'action de son actionneur (50, 51), porte à son extrémité une broche mobile (57) qui vient en prise avec un levier (55) l'amenant à tourner suivant la flèche (A), l'extrémité rotative (59) du levier (55) étant la partie mobile de sa pince (24, 25),
    et dans lequel la même tige (53), avec la broche mobile (57), amène un deuxième levier (65) à tourner suivant la flèche (B), une extrémité rotative (69) du deuxième levier (65) étant la partie mobile de coupe des cisailles (28, 29),
    l'insertion de la broche (57) dans le corps du deuxième levier (65) se faisant au moyen d'une fente (68), si bien que la première partie de la course de la tige (53) n'entraîne pas la rotation du levier (65) et que seule la deuxième partie de la course de la tige (53) entraîne aussi la rotation du deuxième levier (65) également.
  6. Dispositif épisseur (6) permettant d'épisser des fils selon la revendication 5, dans lequel ladite broche mobile (57) vient en prise avec un levier (55) pivoté sur la plaque (20, 21) avec une broche fixe (56).
  7. Dispositif épisseur (6) permettant d'épisser des fils selon la revendication 5 ou 6, dans lequel l'extrémité rotative (59) du levier (55) est la partie mobile de sa pince (24, 25) qui correspond à un ancrage de butée fixe (60), monté sur la plaque (20, 21).
  8. Dispositif épisseur (6) permettant d'épisser des fils selon l'une quelconque des revendications 5, 6 ou 7, dans lequel la tige (53), avec la broche mobile (57), amène le deuxième levier (65) à se déplacer pivoté sur la plaque (20, 21) avec une broche fixe (66) l'amenant à tourner suivant la flèche (B).
  9. Dispositif épisseur (6) permettant d'épisser des fils selon l'une quelconque des revendications 5, 6, 7 ou 8, dans lequel l'extrémité rotative (69) du deuxième levier (65) est la partie mobile de coupe des cisailles (28, 29) qui correspond à la partie de butée fixe (70), montée sur la plaque (20, 21).
  10. Dispositif épisseur (6) permettant d'épisser des fils selon l'une quelconque des revendications précédentes, dans lequel le dispositif d'alimentation (76) qui est commun aux deux cylindres supérieur et inférieur (50, 51) est une vanne à trois voies.
  11. Dispositif épisseur (6) permettant d'épisser des fils selon l'une quelconque des revendications précédentes, dans lequel dans les deux cylindres supérieur (50) et inférieur (51), un piston (75) est fourni auquel la tige (53) est reliée laquelle actionne séquentiellement sa pince (24, 25) et ses cisailles (28, 29), ledit piston (75) capable d'adopter trois positions : (A) en attente, intermédiaire de fermeture de pince (B) et finale de coupe de fil (C), le piston (75) étant poussé dans sa course d'avance par l'air soufflé avec le dispositif d'alimentation (76) et dans sa course de retour par un ressort de retour (77), qui est chargé dans la course d'avance du piston (75).
  12. Dispositif épisseur (6) permettant d'épisser des fils selon la revendication 11, dans lequel une connexion (78) avec un conduit de dérivation est réalisée entre les deux cylindres supérieur (50) et inférieur (51), dont l'ouverture est découverte lorsque le piston atteint la position intermédiaire (B) et en ce qu'une ouverture d'évacuation d'air comprimé (80, 81) est réalisée dans la partie finale du corps des deux cylindres pneumatiques (50) et (51).
  13. Machine de bobinage comprenant un dispositif épisseur (6) selon l'une quelconque des revendications précédentes.
EP13171365.3A 2012-06-12 2013-06-11 Dispositif épisseur permettant d'épisser des fils et machine de bobinage Active EP2674380B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT001019A ITMI20121019A1 (it) 2012-06-12 2012-06-12 Dispositivo per la giunzione di filati

Publications (2)

Publication Number Publication Date
EP2674380A1 EP2674380A1 (fr) 2013-12-18
EP2674380B1 true EP2674380B1 (fr) 2017-02-22

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Country Status (4)

Country Link
EP (1) EP2674380B1 (fr)
CN (2) CN103482423B (fr)
IN (1) IN2013MU01999A (fr)
IT (1) ITMI20121019A1 (fr)

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ITMI20121019A1 (it) * 2012-06-12 2013-12-13 Savio Macchine Tessili Spa Dispositivo per la giunzione di filati
JP2015174760A (ja) * 2014-03-18 2015-10-05 村田機械株式会社 糸継装置、巻取ユニット及び繊維機械
DE102016121093A1 (de) * 2016-11-04 2018-05-09 Saurer Germany Gmbh & Co. Kg Fadenspleißvorrichtung
DE102017124729A1 (de) * 2017-10-23 2019-04-25 Saurer Spinning Solutions Gmbh & Co. Kg Fadenspleißvorrichtung
DE102017129580A1 (de) * 2017-12-12 2019-06-13 Saurer Spinning Solutions Gmbh & Co. Kg Rotationsspleißer für eine Arbeitsstelle auf einer Kreuzspulen herstellenden Textilmaschine
DE102017129582A1 (de) * 2017-12-12 2019-06-13 Saurer Spinning Solutions Gmbh & Co. Kg Fadenspleißvorrichtung für eine Textilmaschine
IT201900001195A1 (it) * 2019-01-28 2020-07-28 Savio Macch Tessili Spa Apparato di filatura, in particolare ad aria, con regolazione in continuo di un sistema di accumulo filo e relativo metodo di regolazione in continuo di un sistema di accumulo filo in un apparato di filatura
IT201900021060A1 (it) * 2019-11-13 2021-05-13 Hayabusa S R L Perfezionamenti ad un dispositivo di giunzione di fili tessili e relativo dispositivo
CN112125064A (zh) * 2020-09-28 2020-12-25 安徽日发纺织机械有限公司 一种气动捻接装置及其捻接方法
CN112080822A (zh) * 2020-10-20 2020-12-15 陕西华燕航空仪表有限公司 一种捻接器推出收回装置

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Also Published As

Publication number Publication date
IN2013MU01999A (fr) 2015-05-29
CN103482423B (zh) 2017-04-12
CN203474107U (zh) 2014-03-12
ITMI20121019A1 (it) 2013-12-13
CN103482423A (zh) 2014-01-01
EP2674380A1 (fr) 2013-12-18

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