EP0740713B1 - Systeme d'alimentation pour metier a injection - Google Patents
Systeme d'alimentation pour metier a injection Download PDFInfo
- Publication number
- EP0740713B1 EP0740713B1 EP94922262A EP94922262A EP0740713B1 EP 0740713 B1 EP0740713 B1 EP 0740713B1 EP 94922262 A EP94922262 A EP 94922262A EP 94922262 A EP94922262 A EP 94922262A EP 0740713 B1 EP0740713 B1 EP 0740713B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- yarn
- conveyor
- weft
- slip
- brake
- 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
- 238000003780 insertion Methods 0.000 claims description 40
- 230000037431 insertion Effects 0.000 claims description 40
- 238000000034 method Methods 0.000 claims description 14
- 230000008569 process Effects 0.000 claims description 14
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 238000009941 weaving Methods 0.000 claims description 4
- 230000009849 deactivation Effects 0.000 claims description 3
- 230000004044 response Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 13
- 230000006870 function Effects 0.000 description 4
- 230000003993 interaction Effects 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
Images
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
Definitions
- the invention relates to an entry system of a jet loom.
- a positive delivery mechanism for the jet loom intended In an entry system known from EP-A1-04 77 877 is downstream of an engaging stopper Measuring feeder in the thread path to the nozzle insertion device a positive delivery mechanism for the jet loom intended.
- This consists of either one Conveyor roller pair with a stationary, drivable Conveyor roller and a free-running and over part an entry process can be pressed onto the driven conveyor roller Counter role, or from a stationary, drivable conveyor roller and only one Part of an insertion process the weft onto the conveyor roller pressing actuator.
- the weft will about the part of the entry process over which the drive is activated, exactly with the speed profile of the Drive and exactly with the respective conveyor roller peripheral speed positive to the nozzle insertion device delivered.
- the drive of the driven conveyor roller is controlled according to a predetermined speed profile, around the nozzle insertion device when pulling off to relieve the weft.
- the control of the drive the conveyor role is complicated. The coordination of the intervention of the positive delivery mechanism on the entry process and on the engagement and disengagement of the stopper difficult.
- a friction thread delivery device known from EP-B1-03 87 546 for example for a water or Air jet looms are at least two at a distance arranged to each other, partially wrapped by the weft Drums provided between which to the drum shell surfaces staggered partitions are arranged. Upstream and is downstream of the friction thread delivery device one web brake independent and fixed thread brake intended. The friction thread delivery device pulls the weft from a bobbin and delivers slip it to the jet loom as soon as the in the jet loom generated tension in the weft Braking effect downstream of the friction and thread delivery device arranged thread brake overcomes.
- the invention has for its object in the operation of a Jet loom the number due to drastic changes in tension in the weft caused by broken threads and the energy expenditure on the weft in the shed transporting medium and reduce the entry frequency without increasing the risk of thread breaks.
- the task is performed with the entry system Claim 1 solved.
- the exact dimensioning of the weft thread length can be found in the Weft storage, delivery and measuring device instead.
- the one generated by the nozzle insertion device in the weft Tension is used to call up the slip conveyor force used, which supports the pulling and accelerating and the nozzle insertion device is relieved.
- the slip conveyor does not work positively, but with one inter alia dependent on the weft tension Slip, which is gentle on the weft.
- the energy expenditure for the nozzle insertion device decrease noticeably to a certain entry frequency produce. Because the slip conveyor and the nozzle entry device sharing the work becomes the weft treated gently. The number of thread breaks drops significantly, because the slip conveyor has a compensating effect and because the slip conveyor is built up gently.
- the Entry frequency can even be because of the division of labor increase significantly, i.e., it can be realize the weft thread a higher entry speed.
- the mass of the inserted weft is delayed must be, where appropriate, the nozzle entry device still pulling on the weft would increase the slip the thread tension between the slip conveyor and the weft stop and release device strong increase and damage or tear off the weft.
- deactivating the Slip conveyor can be removed after reducing the slip conveyor bring the weft gently to a standstill.
- the engaging thread brake and the nozzle insertion device results in one Favorable treatment of the weft thread in spite of the possibility of a higher entry frequency with reduced energy consumption for the nozzle insertion device.
- the disadvantageous for the weft Influence of the thread tension dependent working Slip conveyor comes by its deactivation on Entries do not apply.
- the entry system is structurally and control technology simply because the Slip conveyance solely from the interaction of the components of the entry system and dismantles and none own control needs.
- the embodiment according to claim 2 is particularly advantageous.
- the thread brake has a double function. she draws the energy of the delay towards the end of the entry gentle on the mass of the inserted weft thread open and at the same time deactivate the slip conveyor, so that it does not damage the weft. Doing so either with the thread brake downstream, the weft thread relieved in the slip conveyor, so that the slip grows and the slip conveyance drops, or at Slip conveyor arranged thread brake the wrap or pressure on the still rotating conveyor roller eliminated. This is structurally simple because only which is almost indispensable for high thread speeds anyway Thread brake needs to be controlled.
- a common one Measuring feeder provided its for the thread critical interaction with the slip conveyor in the end the entry process by deactivating the Slip conveyor, e.g. through the then engaging thread brake, suppressed in a way that is gentle on the weft becomes.
- the measurement supplier be placed close to the jet loom. There are optimally few that mechanically act on the thread Deflection points in the thread path needed because the Conveyor roller gently deflects the weft makes. It can be done by aligning the measurement feeder an optimal wrap angle at the Set the conveyor roller.
- the Slip conveyance on two conveyor rollers creates what too a desirable rapid response of the slip conveyor contributes and the mechanical load for the Spread weft.
- the necessary high rotation speed of the conveyor roller or the conveyor rollers on simple and inexpensive Generated way.
- a turbine as a drive can be used on the Jet loom anyway existing compressed air energy use.
- the Deflection brake an additional function.
- the slip conveyor is not reduced by the fact that the weft tension is kept away from the conveyor role, but in that the weft is lifted from the conveyor roller becomes.
- the reversing brake performs a double function because it deactivates the slip conveyor and the Whip effect dampens at the end of the entry process.
- the deflection element of the deflection brake releases the weft from the conveyor roller, whereby it is a gentle one at the place of the conveyor roller Brakes the weft by deflecting.
- the alternative embodiment according to claim 13 is cheap because the slip conveyor without the help of the thread brake is deactivated. If necessary. can then even the controlled Thread brake no longer applicable.
- the stationary Deflection elements when working the slip conveyor passive to avoid annoying friction points in the thread path.
- the deflection points only brake, when the slip conveyor is deactivated. It is one controlled thread brake is not absolutely necessary because this in their function by the passive deflection elements at least is temporarily replaced.
- a weft insertion system E according to FIG. 1 of a jet loom W e.g. an air or water jet loom, has a shed 1 and a nozzle insertion device, consisting of a main nozzle 2 and auxiliary nozzles 3, on each with a weft in the direction of entry e is entered in the shed 1.
- a weft storage, delivery and measuring device M is provided, e.g. a common one Measuring feeder F, the drum 4 for forming a thread supply consisting of turns for the Weft Y as well as a web cycle controllable Has weft stop and release device S.
- the latter consists of an outside of the measuring feeder F.
- the drum 4 stationary stop device 5 with an engaging and disengaging stop 6, which in engaged state the weft Y against a withdrawal movement sets and pull the overhead when disengaged of the weft Y allowed.
- the direction of movement the stop 6 is indicated by a double arrow 7.
- the slip conveyor B has two adjacent according to FIG. 1 Conveyor rollers R1, R2 on which the weft thread Y each with a predetermined wrap angle is redirected. Both conveyor rollers are R1, R2 driven continuously and in the direction of entry, and at a peripheral speed that is higher than the maximum thread insertion speed.
- the controlled thread brake T according to FIG. 1 is a so-called Deflection brake D with a plurality of deflection elements 11, 12 and a drive 13 that can be actuated depending on the web cycle.
- the deflection brake D is between a passive position (shown) in which the weft y passes freely, and a braking position (not shown) adjustable, in which the deflecting elements 11, 12 the weft Y Deflect and brake in a Z-shape.
- the slip conveyor B only one driven conveyor roller R1, around which the Weft Y is deflected.
- the measuring feeder F is with an axis lying approximately transverse to the entry direction e 4a aligned its drum 4, the conveyor roller of the slip conveyor B the deflection of the weft makes.
- a controlled thread brake T is either one Deflection brake D or a controlled thread clamp (not shown) provided. It is a wrap angle of shown approximately 90 °. However, a larger one can also be used or set a smaller wrap angle. If necessary. is at least one stationary thread guide in Thread path provided (not shown).
- the controlled Thread brake T arranged at the slip conveyor B. or integrated in this and designed as a deflection brake D.
- the slip conveyor B has the two conveyor rollers R1, R2 on.
- the deflection elements 11 ', 12' of the deflection brake D are arranged so that in the in Fig. 6A shown passive position of the deflection brake D of the weft Y loosely wraps around the conveyor rollers R1, R2.
- 6B are the deflection elements 11 ', 12' adjusted so that the weft Y from the conveyor rollers R1, R2 at least largely ventilated and is simultaneously braked by turning.
- the weft thread Y similar to FIG. 3 by approximately 90 ° by one Conveyor roller R1 deflected.
- the conveyor roller R1 can be deactivate with the actuator 14, i.e. from the weft move away, e.g. swing away, and for this purpose, e.g., mounted on a lever 16 against the force of a Spring 17 is pivotable.
- 9B is the deactivated one Position of the conveyor roller R1 shown.
- FIG. 6A, 6B are as in FIG. 1 and 2 two conveyor rollers R1, R2 are provided.
- the two conveyor rollers R1, Move R2 to the deactivated position shown in FIG. 5B, in which they no longer weft Y or no longer apply significantly and the weft Y is deflected on stationary deflection elements 8, 10.
- a controlled thread brake downstream of the Slip conveyor B is eliminated because in the deactivated Position of the slip conveyor B a braking effect Redirection is present, which is the whip effect can mitigate.
- a controlled thread brake downstream the slip conveyor B is provided, this only serves more to further reduce the whip effect and gentle braking of the weft thread when the slip conveyor B is deactivated by means of the actuator 14.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Looms (AREA)
Claims (14)
- Système d'insertion (E) du fil de trame (Y) sur un métier à injection (W),comprenant un dispositif d'insertion par jets (2, 3) dans le métier à injection (W), lequel dispositif d'insertion déroule le fil de trame (Y) et le lance à travers la foule (1),comprenant un dispositif de stockage, de distribution et de mesure du fil de trame (M), monté en amont du dispositif d'insertion par jets (2, 3) et équipé d'un dispositif de blocage et de déblocage du fil de trame (S), qui est commandé en fonction de la cadence de tissage,comprenant un tendeur (T) embrayable en fonction de la cadence de tissage et monté sur le parcours du fil,
le tendeur est disposé sur le parcours du fil à proximité du dispositif de transport par glissement (B) ou en aval du dispositif de transport par glissement (B). - Système d'insertion selon la revendication 1, caractérisé en ce que le dispositif de transport par glissement (B) peut être désactivé par l'embrayage du tendeur (T).
- Système d'insertion selon les revendications 1 et 2, caractérisé en ce que le dispositif de transport par glissement (B) est muni d'un rouleau de transport (R1) actionné en continu.
- Système d'insertion selon les revendications 1 et 2, caractérisé en ce que le dispositif de stockage, de distribution et de mesure du fil de trame (M) est conçu comme un fournisseur pilote (F), comprenant un dispositif de déroulement à la défilée du fil de trame (Y) stocké sur un tambour (4) et un dispositif d'arrêt (6) embrayable et débrayable, monté à l'extrémité de déroulement du tambour (4), et en ce que le tendeur (T) peut être embrayé respectivement à la fin d'un processus d'insertion et avant l'arrêt du fil de trame (Y) déroulé, sur le dispositif d'arrêt (6).
- Système d'insertion selon les revendications 3 et 4, caractérisé en ce que le fournisseur pilote (F) est monté de telle sorte que le tambour (4) présente une orientation (4a) transversale au sens d'insertion (e) du fil de trame (Y) à travers la foule (1), et en ce que, entre le dispositif d'arrêt (6) et le dispositif d'insertion par jets (2, 3), le fil de trame (Y) est dévié autour d'un rouleau de transport (R1) avec un angle de contact de 90° environ.
- Système d'insertion selon les revendications 1 à 4, caractérisé en ce que le dispositif de transport par glissement (B) est muni de deux rouleaux de transport (R1, R2) contigus et actionnés en continu.
- Système d'insertion selon au moins l'une des revendications 1 à 6, caractérisé en ce que le rouleau de transport (R1, R2) est entraíné par un moteur électrique ou une turbine (9).
- Système d'insertion selon la revendication 1, caractérisé en ce que le tendeur (T), monté en aval du dispositif de transport par glissement (B), est un frein de déviation (D) qui peut être réglé par voie électromagnétique, par exemple, d'une position passive, dans laquelle le fil de trame (Y) est lancé sans rencontrer d'obstacle, vers une position de friction, dans laquelle le fil de trame est dévié.
- Système d'insertion selon la revendication 1, caractérisé en ce que le tendeur (T) est un frein de déviation (E) qui peut être réglé d'une position passive, dans laquelle le fil de trame (Y) est lancé sans rencontrer d'obstacle, vers une position de friction, dans laquelle le fil de trame est dévié, lequel frein de déviation est monté, à proximité du dispositif de transport par glissement (B), pour agir en plus comme un dispositif de désactivation destiné à desserrer le fil de trame (Y) sur le ou sur les rouleaux de transport (R1, R2) pour désactiver le dispositif de transport par glissement.
- Système d'insertion selon la revendication 9, caractérisé en ce que le frein de déviation (D) est muni d'au moins un élément de déviation (11', 12') mobile transversalement par rapport au fil de trame (Y), et en ce que, dans la position passive du tendeur (T), le fil de trame (Y) est dévié contre le ou contre les rouleaux de transport (R1, R2), alors que dans la position de friction il est au moins largement desserré sur le ou sur les rouleaux de transport (R1, R2) et dévié contre l'élément de déviation (11', 12').
- Système d'insertion selon les revendications 1 et 2, caractérisé en ce que le tendeur (T), monté en aval du dispositif de transport par glissement (B), constitue une pince de serrage du fil, susceptible d'être commandée.
- Système d'insertion selon les revendications 9 et 10, caractérisé en ce qu'au moins l'un des éléments de déviation (11', 12') du tendeur (T) est conçu comme un organe de guidage du fil.
- Système d'insertion selon au moins l'une des revendications 1, 3 et 6, caractérisé en ce que le dispositif de transport par glissement (B) ou au moins l'un des rouleaux de transport (R1, R2) est monté de manière à pouvoir être positionné par rapport au fil de trame (Y) pour la fonction de désactivation en dehors ou sur le parcours du fil, et en ce qu'il est prévu de monter un mécanisme de réglage (14) pour positionner le dispositif de transport par glissement (B) ou les rouleaux de transport (R1, R2) en fonction de la cadence de tissage.
- Système d'insertion selon l'une des revendications 1, 3, 6 et 13, caractérisé en ce que le dispositif de transport par glissement (B) ou les rouleaux de transport (R1, R2) peut ou peuvent être positionné(s) pour leur fonction de désactivation en dehors du parcours du fil, et en ce qu'il est prévu de monter des éléments de déviation (8, 10) fixes à proximité des rouleaux de transport, contre lesquels le fil de trame (Y) peut être dévié par friction lorsque le dispositif de transport par glissement (B) est désactivé.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4324160 | 1993-07-19 | ||
DE4324160A DE4324160A1 (de) | 1993-07-19 | 1993-07-19 | Eintragsystem für eine Düsenwebmaschine |
PCT/EP1994/002208 WO1995003442A1 (fr) | 1993-07-19 | 1994-07-06 | Systeme d'alimentation pour metier a injection |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0740713A1 EP0740713A1 (fr) | 1996-11-06 |
EP0740713B1 true EP0740713B1 (fr) | 1998-04-01 |
Family
ID=6493169
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94922262A Expired - Lifetime EP0740713B1 (fr) | 1993-07-19 | 1994-07-06 | Systeme d'alimentation pour metier a injection |
Country Status (8)
Country | Link |
---|---|
US (1) | US5660213A (fr) |
EP (1) | EP0740713B1 (fr) |
JP (1) | JP3427897B2 (fr) |
KR (1) | KR960703678A (fr) |
CN (1) | CN1039841C (fr) |
CZ (1) | CZ284532B6 (fr) |
DE (2) | DE4324160A1 (fr) |
WO (1) | WO1995003442A1 (fr) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19706288A1 (de) * | 1997-02-18 | 1998-08-20 | Iro Ab | Meßliefergerät |
DE10210911A1 (de) * | 2002-03-04 | 2003-09-18 | Picanol Nv | Vorrichtung zum Erfassen und/oder Einstellen einer Zugkraft in einem Faden |
US8960596B2 (en) | 2007-08-20 | 2015-02-24 | Kevin Kremeyer | Energy-deposition systems, equipment and method for modifying and controlling shock waves and supersonic flow |
EP2058423A1 (fr) * | 2007-10-10 | 2009-05-13 | Iro Ab | Machine à tisser, passe-fil et procédé d'insertion d'un passe-fil |
CN102560835B (zh) * | 2012-03-12 | 2014-04-16 | 天津海天长丰科技开发有限公司 | 织机自动放纬、喂纬装置 |
DE102012212169A1 (de) * | 2012-07-11 | 2014-01-16 | Lindauer Dornier Gesellschaft Mit Beschränkter Haftung | Vorrichtung zum Zwischenspeichern von bandartigem Schussmaterial für eine Webmaschine und Webmaschine mit einer solchen Vorrichtung |
CN103290606B (zh) * | 2013-06-18 | 2014-08-06 | 江苏万工科技集团有限公司 | 一种纬纱速度与牵引力关系曲线测量装置 |
US10669653B2 (en) * | 2015-06-18 | 2020-06-02 | Kevin Kremeyer | Directed energy deposition to facilitate high speed applications |
CN105671749B (zh) * | 2016-01-21 | 2017-05-24 | 江苏工程职业技术学院 | 一种纱布的生产工艺 |
CN105671751B (zh) * | 2016-04-15 | 2019-09-13 | 苏州市丹纺纺织研发有限公司 | 一种滑动定位式捕纬器 |
CN109415851B (zh) * | 2016-07-06 | 2021-07-09 | 范德威尔瑞典公司 | 具有环形运行带的纬纱进给布置和用于控制该布置的方法 |
SE1650986A1 (en) * | 2016-07-06 | 2018-01-07 | Iro Ab | Weft yarn feeding arrangement with motor drive |
SE1650988A1 (en) * | 2016-08-09 | 2018-02-10 | Iro Ab | Yarn feeding device with long yarn buffer |
CN114775144A (zh) * | 2022-04-28 | 2022-07-22 | 常州市新创智能科技有限公司 | 一种剑杆机纬纱放纱方法、计算机设备及存储介质 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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. |
DE3714826C1 (en) * | 1987-05-04 | 1988-06-01 | Dornier Gmbh Lindauer | Shuttleless weaving machine with a pneumatic weft-insertion device consisting of a main nozzle and of a downstream mixing tube |
US4875506A (en) * | 1987-05-27 | 1989-10-24 | Sulzer Brothers Limited | Yarn brake for a weft yarn |
SE8900006D0 (sv) * | 1988-12-31 | 1988-12-31 | Iro Ab | Anordning vid en garnlager- och matningsenhet foer textilmaskiner foeretraedesvis vaevmaskiner |
DE3908012A1 (de) * | 1989-03-11 | 1990-09-13 | Sobrevin | Liefervorrichtung fuer laufende faeden |
IT1236993B (it) * | 1989-12-29 | 1993-05-12 | Roy Electrotex Spa | Alimentatore di trama per telai di tessitura a pinze e a proiettili |
ATE115943T1 (de) * | 1990-07-05 | 1995-01-15 | Sobrevin | Liefervorrichtung für laufende fäden. |
JP3134879B2 (ja) * | 1990-09-27 | 2001-02-13 | 津田駒工業株式会社 | 流体噴射式織機の積極フィードよこ入れ装置 |
DE4131652A1 (de) * | 1991-09-23 | 1993-04-01 | Iro Ab | Webmaschine und eintragbremse fuer webmaschinen |
SE9200526D0 (sv) * | 1992-02-20 | 1992-02-20 | Iro Ab | Eintragssystem fuer schussfaeden in eine webmaschine, insbesondere eine duesenwebmaschine |
DE4240710A1 (de) * | 1992-12-03 | 1994-06-09 | Iro Ab | Verfahren zum Steuern eines Fadenliefersystems und Fadenliefersystems |
-
1993
- 1993-07-19 DE DE4324160A patent/DE4324160A1/de not_active Withdrawn
-
1994
- 1994-07-06 WO PCT/EP1994/002208 patent/WO1995003442A1/fr active IP Right Grant
- 1994-07-06 CN CN94193110A patent/CN1039841C/zh not_active Expired - Fee Related
- 1994-07-06 DE DE59405606T patent/DE59405606D1/de not_active Expired - Fee Related
- 1994-07-06 JP JP50489495A patent/JP3427897B2/ja not_active Expired - Fee Related
- 1994-07-06 US US08/586,843 patent/US5660213A/en not_active Expired - Fee Related
- 1994-07-06 EP EP94922262A patent/EP0740713B1/fr not_active Expired - Lifetime
- 1994-07-06 CZ CZ96163A patent/CZ284532B6/cs not_active IP Right Cessation
-
1996
- 1996-01-19 KR KR1019960700352A patent/KR960703678A/ko not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
EP0740713A1 (fr) | 1996-11-06 |
CZ284532B6 (cs) | 1998-12-16 |
JP3427897B2 (ja) | 2003-07-22 |
WO1995003442A1 (fr) | 1995-02-02 |
CN1039841C (zh) | 1998-09-16 |
DE4324160A1 (de) | 1995-01-26 |
JPH09500426A (ja) | 1997-01-14 |
CN1129466A (zh) | 1996-08-21 |
DE59405606D1 (de) | 1998-05-07 |
CZ16396A3 (en) | 1996-04-17 |
KR960703678A (ko) | 1996-08-31 |
US5660213A (en) | 1997-08-26 |
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