EP0379702B1 - Méthode pour le transport d'une bobine vers une machine textile, notamment une retordeuse à double torsion et dispositif pour la réalisation de cette méthode - Google Patents
Méthode pour le transport d'une bobine vers une machine textile, notamment une retordeuse à double torsion et dispositif pour la réalisation de cette méthode Download PDFInfo
- Publication number
- EP0379702B1 EP0379702B1 EP89123338A EP89123338A EP0379702B1 EP 0379702 B1 EP0379702 B1 EP 0379702B1 EP 89123338 A EP89123338 A EP 89123338A EP 89123338 A EP89123338 A EP 89123338A EP 0379702 B1 EP0379702 B1 EP 0379702B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bobbin
- yarn
- gripper
- hollow mandrel
- plug
- 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.)
- Expired - Lifetime
Links
Images
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
- D01H9/18—Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine for supplying bobbins, cores, receptacles, or completed packages to, or transporting from, paying-out or take-up stations ; Arrangements to prevent unwinding of roving from roving bobbins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
- B65H67/06—Supplying cores, receptacles, or packages to, or transporting from, winding or depositing stations
- B65H67/064—Supplying or transporting cross-wound packages, also combined with transporting the empty core
- B65H67/065—Manipulators with gripping or holding means for transferring the packages from one station to another, e.g. from a conveyor to a creel trolley
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
- B65H67/08—Automatic end-finding and material-interconnecting arrangements
- B65H67/086—Preparing supply packages
- B65H67/088—Prepositioning the yarn end into the interior of the supply package
-
- 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 invention relates to a method for transporting a bobbin to a yarn processing machine, in particular a double wire twisting machine, in which a bobbin gripper is inserted into the hollow bobbin core of the yarn bobbin and fixed there, the yarn bobbin is moved further on the bobbin gripper and onto a hollow mandrel of a conveyor system or a yarn processing unit Machine attached , after which the bobbin gripper detaches itself from the bobbin.
- the transport systems used for this are essentially available in two variants, namely as a bobbin transport system that directly connects two production machines directly to one another, for example a spinning machine with an automatic winding machine, and on the other hand as a bobbin transport system that allows a flexible connection between production machines.
- the goods to be transported are transferred from an interface of the first machine to a transport system and from there to the interface of a second machine via a dispatch center.
- This document deals with a device for transporting a bobbin of thread to a yarn processing machine, comprising a bobbin gripper with a cylindrical plug-in body having a hollow axial inner space, at the plug-in end of which a spreading device is arranged.
- the invention has for its object to provide a method for transporting a bobbin of the type mentioned in the preamble of claim 1, in which the thread ends assume a defined fixed position in all stages of the transport, so that on the one hand no thread ends fall off during the transport process and on the other hand, the thread ends are automatically detected at the end of the transport process and thus a functional presentation of the thread end for a further work process, for example the automatic feeding and starting, that is to say picking up the thread with subsequent threading through the new processing station and further applying the thread to a new take-up sleeve is possible.
- Claim 3 describes and claims a device for performing the method according to the invention.
- Claims 4 to 10 describe advantageous developments of the device according to claim 3.
- the basic idea of the method according to the invention is, for example, when the yarn package is transferred by means of a bobbin gripper a preparation device to a transport system and from the transport system to a yarn processing machine to ensure that the thread end or, in the case of a plurality of stacked yarn bobbins, the thread ends by applying underpressure and / or overpressure respectively into the interior of the bobbin gripper or after its detachment into the interior of the hollow Core are inserted. In this way, they assume a defined position during the entire transport process, namely either in front of or within the coil core or within the coil gripper. During the next transfer process, the thread end can always be easily picked up and inserted in a defined manner.
- FIG. 1 shows two single-wound cross-wound bobbins arranged one above the other, which as a pair of bobbins form the template for a double-wire twisting spindle.
- the yarn bobbins G1 and G2 lie with the bobbin circumference on a preparation device which is known per se and is designated overall by reference number 9 and which serves to turn the yarn bobbins and at the same time pick up the thread ends F1 and F2, for example with a suction nozzle (not shown) and as in FIG. 1 shown in the area in front of the hollow bobbin core K1 of the bobbin G1.
- the bobbin cores K1 and K2 of the two yarn packages G1 and G2 can optionally be connected to one another by means of a clip connection known per se.
- a bobbin gripper 1 is used, which is inserted into the hollow bobbin K1 and fixed there.
- the coil gripper 1 has a base body which is composed of two essentially cylindrical parts 2 and 3 which are rotatable relative to one another.
- the two parts 2 and 3 each have a hollow axial interior 2.1 and 3.1.
- a spreading device 4 designed as a pivotable bracket.
- the inner end of the bracket 4 is guided in the eccentrically arranged groove 6.1 of a cam 6, which is firmly connected to the second part 3 with support against a support plate 7.
- a handling element 5 is also arranged on the first part 2.
- the second part 3 is designed as a rotating element.
- the interior 3.1 facing the insertion end of the second part 3 is connected via a passage 3.2 to an interior 3.3 arranged in the rear part of the second part 3, in which an insert 8 is arranged in such a way that an injector is formed in such a way that a through the lateral opening 3.4 entering compressed air flow enters the axial bore 8.1 of the insert 8 and a negative pressure is generated before the passage 3.2 by the injector effect.
- the injector is now actuated when the bobbin gripper 1 is inserted into the bobbin core K1, the two thread ends F1 and F2 are sucked in and introduced into the insert piece 8 through the axial interiors 2.1, 3.1 and the passage 3.2.
- the thread ends F1 and F2 are passed through a lateral slot 2.2 in the first part 2 at the outer end of the bobbin K1, but other ways of pneumatic movement of the Thread end conceivable.
- the yarn packages G1 and G2 are removed from the preparation device 9 and fed to the transport system shown in FIG. During this transfer, the thread ends F1 and F2 are held in a defined position in the bobbin gripper 1.
- the known type of conveyor system shown in Figure 3 has a rail 10, in which rollers 11 run, on which a support arm 12 is arranged, which carries a support bracket 13, at the lower end of which a hollow mandrel 14 is arranged, on which the coil cores K1 and K2 of the bobbins G1 and G2 can be attached in the manner shown in FIG. 3.
- the thread ends F1 and F2 must be led out of the bobbin gripper 1 and inserted into the hollow mandrel 14 of the conveyor system so that they are again in a defined, defined position for further transport on the conveyor system.
- this is done by attaching the suction opening of an injector 15 to the rear end of the hollow mandrel 14. With a short actuation of this injector, the thread ends F1 and F2 are sucked into the interior of the hollow mandrel 14. Now the coil gripper 1, the injector of which was actuated only briefly when starting, can be removed and the bobbins G1 and G2 are carried on by the conveyor system.
- the thread ends are secured for further transport, and the two bobbins G1 and G2 are fed to a double-wire twisting machine by means of the transport system.
- they are removed from the transport system by means of a coil gripper 21.
- This coil gripper 21 shown in FIG. 4 can in principle be constructed in exactly the same way as the coil gripper 1 shown in FIG. 2. It has a lower plug-in part 22 with a spreading device 24, a cam disk which is supported on the support plate 27 and is firmly connected to the second part 23 26. In the outer end of the second part 23, the insert part 28 is inserted to form an injector.
- the bobbin gripper 21 is inserted in a manner not shown in the bobbin core K1 of the bobbin G1 on the conveyor system and when the bobbins G1 and G2 are removed from the conveyor system, the same processes are carried out as described above under FIGS. 1 and 2.
- the injector arranged on the bobbin gripper 21 is actuated, the thread ends F1 and F2 are sucked out of the interior of the hollow mandrel 14 and sucked into the interior of the bobbin gripper 21, so that they are finally held in the bobbin gripper 21 in the position shown in FIG.
- FIG. 4 shows the placement of the two yarn packages G1 and G2 on a double-wire twisting spindle.
- the double-wire twisting spindle has a whorl 16, a turntable 17 with thread storage disk 17.1 and a protective pot 18 in which the hollow mandrel 19 is arranged axially, onto which the bobbins G1 and G2 are attached in the direction of arrow E.
- An injector 30 is arranged in the hollow mandrel 19, the suction end of which is connected to the interior 19.1 of the hollow mandrel 19 and the air supply duct 31 is guided through the protective pot 18 on its outer circumference, so that its air inlet opening 31.1 is by means of an opening 20.1 of the balloon limiter 20 passable connecting device 32 can be connected to a compressed air source.
- a control valve 34 is arranged in the region of the plug-on end of the spindle outside the protective pot 18, which is connected via a line 33 to the connecting device 32, and by actuating its switch-on member 34.1 in illustrated manner, causes the connection of the connecting device 32 to a compressed air source.
- the activation element 34.1 is actuated in the direction of arrow B by means of a spring-loaded actuation element 29 arranged on the handling element 25 of the bobbin gripper 21.
- the pair of yarn spools G1 and G2 is attached to the hollow mandrel 19 of the double-wire twisting spindle by means of the spool gripper 21.
- the injector 30 is actuated by the interaction of the actuating member 29 with the switch-on member 34.1, and the thread ends F1 and F2 are sucked into the interior 9.1 of the hollow mandrel 19 from the interior of the bobbin gripper 21.
- the bobbin gripper 21 can then be detached from the yarn bobbins and removed.
- the thread ends F1 and F2 can be introduced into the cavity 19 not only by actuating the threading device having the injector 30 but also by switching the injector arranged in the bobbin gripper 21 to "bubbles".
- the two yarn packages G1 and G2 can also be fed to a double-wire twisting spindle, in which the thread threading device is designed somewhat differently than in the exemplary embodiment according to FIG. 4.
- the double-wire twisting spindle shown in FIG Design according to Figure 4 corresponding parts with the same reference numerals. Regarding these parts, reference is made to the description given above.
- a threading injector 30 ' which is arranged at the intersection of the bore of the hollow mandrel 19 and the radial channel 17.2 in the storage disc 17.1.
- the air supply channel 31 ' is through the whorl 16', which is supported via a roller bearing 16.1 on the machine stand 35, down so that its air inlet opening 31.1 'by means of a connecting device 32' and the compressed air line 33 'to the control valve 34 already described with the switch 34.1 can be connected.
- the processes when the bobbins G1 and G2 are fitted onto this double-wire twisting spindle are the same as described under FIG. 4.
- FIG. 5 shows once again the yarn bobbins G1 and G2 inserted in the double-wire twisting spindle, including the thread ends F1 and F2 of the two yarn bobbins sucked into the upper region of the hollow mandrel 19.
- the coil gripper 21 is removed in the direction of arrow A.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
- Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
Claims (10)
- Procédé de transport d'une bobine de fil à une machine de traitement de fil, en particulier un retordoir à double torsion, dans lequel un préhenseur de bobine (1,21) pénètre dans les noyaux de bobine (K1,K2) creux de la bobine de fil (G1,G2) et s'y fixe, la bobine de fil étant déplacée sur le préhenseur de bobine et enfichée sur un mandrin creux (14 ou 19) d'un système de transfert (10 à 13) ou une machine de traitement de fil (16 à 20), à la suite de quoi le préhenseur de bobine (1,21) se désolidarise de nouveau de la bobine de fil (G1,G2), caractérisé en ce que le bout de fil (F1,F2) de la bobine de fil (G1,G2) est disposé, avant le processus de transport, dans la zone située devant ou à l'intérieur du noyau de bobine (K1,K2), est aspiré, au moyen d'un vide, dans un espace intérieur du préhenseur de bobine (1,21) lors de la saisie de la bobine de fil par le préhenseur de bobine (1,21) et, après enfichage de la bobine de fil sur le mandrin creux (14, ou 19), est introduit par soufflage, ou aspiration, dans l'espace intérieur du mandrin creux, au moyen d'une surpression venant du préhenseur de bobine (1,21) ou au moyen d'un vide venant du mandrin creux (14,19).
- Procédé selon la revendication 1, caractérisé en ce que, dans une première étape du procédé, la bobine de fil (G1,G2) est enfichée sur le mandrin creux (14) d'un système de transfert (10 à 13) au moyen d'un premier préhenseur de bobine (1), par un dispositif de préparation (9), le bout de fil (F1,F2) étant d'abord introduit de la zone située devant le noyau de bobine dans l'espace intérieur du premier préhenseur de bobine (1), puis dans l'espace intérieur du mandrin creux (14), et, dans une deuxième étape de procédé, la bobine de fil (G1,G2) est enlevée du mandrin creux (14) du système de transfert, au moyen d'une deuxième préhenseur de bobine (21), et enfichée sur le dispositif de support (16 à 20), présentant un mandrin creux (16), par exemple la broche d'une machine de traitement de fil, le bout de fil (F1,F2) étant d'abord sorti du mandrin creux (14) du système de transfert et placé à l'intérieur du deuxième préhenseur de bobine (21), puis introduit dans l'espace intérieur du mandrin creux (19) du dispositif support.
- Dispositif de transport d'une bobine de fil (G1,G2) à une machine de traitement de fil, comprenant un préhenseur de bobines (1,21), avec un corps d'enfichage (2-3;22,23), présentant un préhenseur de bobine (1,21) avec un espace intérieur axial creux cylindrique (3.1;23.1), à l'extrémité d'enfichage duquel est disposé un dispositif d'écartement (4,24), pour la mise en oeuvre du procédé selon la revendication 1, caractérisé en ce que, sur l'espace intérieur (3.1,23.1) du corps d'enfichage (2-3;22-23) est raccordé, du côté opposé à l'extrémité d'enfichage, l'extrémité d'aspiration (3.2,23.2) d'un dispositif pneumatique de transport de fil (8 à 28), relié ou susceptible d'être relié au préhenseur de bobine, en vue d'aspirer au moins un bout de fil dans l'espace intérieur du préhenseur et en ce qu'un autre dispositif pneumatique de transport de fil est prévu, afin de réintroduire ensuite le ou les bouts de fil dans le noyau de bobine creux de la bobine de fil.
- Dispositif selon la revendication 3, caractérisé en ce que le dispositif pneumatique de transport de fil (8,28) est réalisé sous forme d'un injecteur, intégré dans le préhenseur de bobine.
- Dispositif selon la revendication 3 ou 4, pour la mise en oeuvre du procédé selon la revendication 2, caractérisé par un premier préhenseur de bobine (1), équipé d'un dispositif pneumatique de transport de fil (8), pour le transport de la bobine de fil d'un dispositif de préparation (9) à un système de transfert (10 à 13) présentant au moins un mandrin creux (14), ainsi qu'un deuxième préhenseur de bobine (21) équipé d'un dispositif pneumatique de transport de fil (28), pour le transport de la bobine de fil du système de transfert au dispositif support, présentant un mandrin creux (19), d'une machine de traitement de fil.
- Dispositif selon l'une des revendications 3 à 5, caractérisé en ce que l'extrémité d'aspiration d'un dispositif pneumatique supplémentaire de transport de fil (15,30) est raccordée ou susceptible d'être appliquée sur l'extrémité, opposée à l'extrémité d'enfichage, dans le mandrin creux (19) disposé sur le système de transfert (10 à 13) et/ou la machine de traitement de fil (16 à 20).
- Dispositif selon l'une des revendications 3 à 6, caractérisé en ce que chaque préhenseur de bobine (1) présente un corps d'enfichage, composé de deux parties cylindriques (2,3), susceptibles de tourner l'une par rapport à l'autre, présentant chacune un espace intérieur axial (2.1,3.1) creux, un dispositif d'écartement (4) étant disposé sur la première partie (2), se raccordant à l'extrémité d'enfichage et dont le déplacement est susceptible d'être commandé par la rotation de la deuxième partie (3), opposée à l'extrémité d'enfichage, et un élément de manipulation (5) constituant un appendice radial étant disposé sur la première partie (2), tandis que la deuxième partie (3) est réalisée sous forme d'élément de rotation.
- Dispositif selon la revendication 5, caractérisé en ce qu'un dispositif (29), destiné à la commande d'un injecteur raccordé à la broche, est disposé au moins sur le préhenseur de bobine (21), transportant la bobine de fil au dispositif support (16 à 20) de la machine de traitement de fil.
- Dispositif selon la revendication 8, sur un retordoir à double torsion, dans lequel, dans ou sur la broche, dans la zone de l'extrémité opposée à l'extrémité d'enfichage, est disposé un injecteur (30), dont le canal d'amenée d'air (31) est susceptible d'être raccordé à une source d'air comprimé, caractérisé en ce que, dans la zone de l'extrémité d'enfichage de la broche, à l'extérieur du pot de protection (18) est disposée une soupape de commande (34) pour l'amenée de l'air comprimé, de telle façon que son organe de mise en service (34.1) coopère, dans la position finale de la bobine de fil, avec un organe d'actionnement (29) disposé sur le préhenseur de bobine (21) lors de l'enfichage de la bobine de fil (G1,G2) sur la broche.
- Dispositif selon la revendication 9, caractérisé en ce que le canal d'amenée d'air (31) de l'injecteur (30) disposé dans la broche est guidé au moyen du pot de protection (18) de la broche, sur sa périphérie extérieure, où il est susceptible d'être raccordé à la source d'air comprimé, par l'intermédiaire d'un dispositif de raccordement (32).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3901770 | 1989-01-21 | ||
DE3901770A DE3901770A1 (de) | 1989-01-21 | 1989-01-21 | Verfahren zum transport einer garnspule zu einer garnverarbeitenden maschine, insbesondere einer doppeldraht-zwirnmaschine sowie einrichtung zur durchfuehrung des verfahrens |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0379702A1 EP0379702A1 (fr) | 1990-08-01 |
EP0379702B1 true EP0379702B1 (fr) | 1993-06-09 |
Family
ID=6372540
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP89123338A Expired - Lifetime EP0379702B1 (fr) | 1989-01-21 | 1989-12-18 | Méthode pour le transport d'une bobine vers une machine textile, notamment une retordeuse à double torsion et dispositif pour la réalisation de cette méthode |
Country Status (3)
Country | Link |
---|---|
US (1) | US5062261A (fr) |
EP (1) | EP0379702B1 (fr) |
DE (2) | DE3901770A1 (fr) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5207052A (en) * | 1989-01-21 | 1993-05-04 | Palitex Project Company Gmbh | Method of transporting and positioning a set of yarn packages in a spindle assembly of a twister yarn processing machine and an adapter device for use therein |
EP0410015B1 (fr) * | 1989-07-24 | 1993-11-18 | Palitex Project-Company GmbH | Procédé et dispositif pour l'extraction automatique d'un adaptateur pour bobines et pour transport d'un poste de traitement de fil, en particulier d'un pot d'une broche à retordre à double torsion |
US5212858A (en) * | 1990-01-31 | 1993-05-25 | Asten Group, Inc. | Apparatus for capturing and stabilizing a yarn |
DE4024358A1 (de) * | 1990-08-01 | 1992-02-13 | Zinser Textilmaschinen Gmbh | Verfahren und vorrichtung zum wechseln von wenigstens einer vollen vorgarnspule an einer spinnmaschine |
IT1249471B (it) * | 1990-11-17 | 1995-02-23 | Murata Machinery Ltd | Sistema di collegamento di una roccatrice ad un torcitoio a doppia torsione. |
US5373930A (en) * | 1993-10-14 | 1994-12-20 | Tns Mills, Inc. | Package transport system and method |
EP4211066A1 (fr) * | 2020-09-08 | 2023-07-19 | Modra Technology Pty Ltd | Système de manipulation de fil |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH429355A (de) * | 1965-01-30 | 1967-01-31 | Elias Dr Ing Chem Juelke | Verfahren zum Aufnehmen, Transportieren und Übertragen von Draht oder Faden beim Spulenwechsel |
FR1455498A (fr) * | 1965-11-03 | 1966-04-01 | Alwo Altenburger Wollspinnerei | Dispositif pour la fabrication de fil d'âme |
ES372830A1 (es) * | 1968-12-06 | 1971-11-01 | Palitex Project Co Gmbh | Dispositivo, en una maquina para doble torsion del hilo, para alimentar los husos con bobinas proveedoras y para la descarga de los carretes vacios. |
ES440037A1 (es) * | 1974-12-30 | 1977-02-16 | Palitex Project Co Gmbh | Perfeccionamientos relativos a husos de doble torsion con undispositivo de enhebrado accionado por aire a presion. |
DE2541690C2 (de) * | 1975-09-18 | 1977-11-03 | Hamel GmbH, Zwirnmaschinen, 4400 Münster | Druckluftbetätigte Einfädelvorrichtung für Doppeldrahtzwirnspindeln |
DE2646921C2 (de) * | 1976-10-18 | 1980-01-03 | Palitex Project-Company Gmbh, 4150 Krefeld | Doppeldrahtzwirnmaschine |
DE2648621C3 (de) * | 1976-10-27 | 1981-11-26 | Palitex Project-Company Gmbh, 4150 Krefeld | Doppeldraht-Zwirnmaschine |
FR2398131A1 (fr) * | 1977-07-20 | 1979-02-16 | Verdol Sa | Perfectionnements aux dispositifs d'enfilage automatique de fil dans une broche a double torsion |
DE2802205C2 (de) * | 1978-01-19 | 1980-03-27 | Palitex Project-Company Gmbh, 4150 Krefeld | Vorrichtung zur Aufnahme und spannungslosen Wiederabgabe einer einzigen vorgegebenen Länge eines Fadens o.dgl |
IT1195894B (it) * | 1979-09-24 | 1988-10-27 | Savio Spa | Introduttore automatico per fusi a doppia torsione e fusi a doppia torsione adottanti detto introduttore |
DE3336714C2 (de) * | 1983-10-08 | 1986-07-10 | Palitex Project-Company Gmbh, 4150 Krefeld | Ballonbegrenzerlose Doppeldraht-Zwirnspindel |
DE3545695A1 (de) * | 1985-12-21 | 1987-07-02 | Palitex Project Co Gmbh | Spulenaufnehmer |
DE3605193C1 (de) * | 1986-02-19 | 1987-07-09 | Palitex Project Co Gmbh | Fadenbremse fuer Zwirnmaschinen,insbesondere Doppeldraht-Zwirnmaschinen |
JPH0665583B2 (ja) * | 1987-04-03 | 1994-08-24 | 村田機械株式会社 | 糸端口出し装置 |
US4848077A (en) * | 1987-04-07 | 1989-07-18 | Murata Kikai Kabushiki Kaisha | Package feeding method and apparatus |
JPS6426732A (en) * | 1987-07-22 | 1989-01-30 | Murata Machinery Ltd | Double twister |
-
1989
- 1989-01-21 DE DE3901770A patent/DE3901770A1/de not_active Withdrawn
- 1989-12-18 EP EP89123338A patent/EP0379702B1/fr not_active Expired - Lifetime
- 1989-12-18 DE DE8989123338T patent/DE58904638D1/de not_active Expired - Fee Related
-
1990
- 1990-01-18 US US07/467,169 patent/US5062261A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US5062261A (en) | 1991-11-05 |
DE58904638D1 (de) | 1993-07-15 |
DE3901770A1 (de) | 1990-07-26 |
EP0379702A1 (fr) | 1990-08-01 |
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