EP0356380B1 - Procédé pour éviter les pics de contrainte dans la trame lors de son introduction au moment du freinage - Google Patents

Procédé pour éviter les pics de contrainte dans la trame lors de son introduction au moment du freinage Download PDF

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Publication number
EP0356380B1
EP0356380B1 EP89810527A EP89810527A EP0356380B1 EP 0356380 B1 EP0356380 B1 EP 0356380B1 EP 89810527 A EP89810527 A EP 89810527A EP 89810527 A EP89810527 A EP 89810527A EP 0356380 B1 EP0356380 B1 EP 0356380B1
Authority
EP
European Patent Office
Prior art keywords
weft yarn
deflection
weft
damping
braking
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.)
Revoked
Application number
EP89810527A
Other languages
German (de)
English (en)
Other versions
EP0356380A1 (fr
Inventor
Peter Grimm
Manfred Willam
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.)
Itema Switzerland Ltd
Original Assignee
Sultex AG
Maschinenfabrik Rueti 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=4250116&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0356380(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Sultex AG, Maschinenfabrik Rueti AG filed Critical Sultex AG
Publication of EP0356380A1 publication Critical patent/EP0356380A1/fr
Application granted granted Critical
Publication of EP0356380B1 publication Critical patent/EP0356380B1/fr
Anticipated expiration legal-status Critical
Revoked 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
    • B65H59/10—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by devices acting on running material and not associated with supply or take-up devices
    • B65H59/20—Co-operating surfaces mounted for relative movement
    • B65H59/26—Co-operating surfaces mounted for relative movement and arranged to deflect material from straight path
    • 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 according to the preamble of claim 1.
  • thread breaks often occur towards the end of the weft insertion.
  • shot errors called “stop shots”
  • stop shots usually take place at the moment when the full shot length has been entered and a thread stopper is activated.
  • the course of the thread is often braked abruptly, so that the entire kinetic energy of the weft thread is converted into tension energy of the yarn. Depending on the yarn quality, this results in more or fewer thread breaks.
  • Thread brakes and / or thread tensioners are known in weaving machines. With the thread brakes, the weft thread is clamped more or less slowly between two mutually movable elements. Voltage peaks can occur during braking, so that these thread breaks occur when braking is relatively abrupt.
  • the Known thread tensioners in turn serve to keep the weft stretched or to brake slightly. They cannot help prevent thread breaks. The devices mentioned are described, for example, in EP-A1-155 432.
  • DE-A-27.52.094 describes an arrangement for inserting weft threads, in which a thread deflecting device is arranged between a thread brake and the main nozzle, with which the thread is gently braked and the thread should not snap back.
  • the force of the pre-tension is adjustable to allow adaptation to different types of weft.
  • the device takes no account of the weft speed that varies from weft to weft in weaving operation.
  • EP-A1-0.264.985 describes a device with which the weft thread is deflected during the weft insertion, but before the braking phase, with a thread guide element, which would result in the weft inserted being too short. Just before the braking phase is initiated, the deflected thread guide element is withdrawn again to such an extent that the weft length entered is just correct and there is no need to retract the weft thread.
  • the present invention has for its object to provide an improved method of the type mentioned above, in which the function of the damping device is adapted to the respective weft speed, which further reduces the springing back of the weft thread and the occurrence of so-called stop wefts.
  • the weft thread can be deflected from its normal path during the entire weft insertion. Due to the multiple deflection of the weft thread, disadvantageous effects occur here due to the friction of the weft thread at the deflections. Therefore, in a preferred embodiment of the invention, the weft thread should only be steered out of its path towards the end of the weft insertion. This minimizes the influence of the weft thread.
  • the start, duration and / or size of the deflection for braking and the withdrawal of the deflection during damping can preferably be set or adjusted. be managed. This regulation can take place, for example, on the basis of a measured thread speed.
  • Damping devices which can be used in carrying out the above-mentioned method, are described with the features of claims 2 and 3. They can consist of an energy accumulator and an apex deflection that is operatively connected to it for engaging in the weft thread run. A spiral or leaf spring or a corresponding spring assembly can be used here as the energy store. In this embodiment, however, it can have the disadvantage that the weft thread is always deflected. This constant intervention in the weft insertion can result in a deterioration in the fabric quality.
  • Another form of damping device works on the principle of a plunger magnet.
  • An anchor is guided into the weft path at the end of the weft insertion by electromagnets and deflects the weft thread.
  • the voltage applied to the electromagnets is set in such a way that, in the event of voltage peaks, the electromagnetic force is overcome by the weft thread and the armature can be moved in the direction of its starting position.
  • a higher voltage can also be applied first when the braking process is initiated, which is then reduced to effect damping.
  • a particularly preferred embodiment of the invention works with a damping device from a pneumatically actuated piston-cylinder system.
  • a crown deflection is connected to the piston, for example via a piston rod.
  • the crown deflection is introduced very quickly into the weft thread path, while on the other hand the counterforce can be controlled sensitively by means of corresponding magnetic valves.
  • the damping device can also be used very well as a thread brake at the same time.
  • an elastic stop is assigned to the crown deflection. In the end position of the crown deflection, this meets the elastic stop with the weft thread, so that between Crown deflection and elastic stop of the weft thread is pinched. If the air pressure in the cylinder is also reduced at the same time, the peak deflection can be reduced against the pressure of the air volume in the cylinder space in the event of a voltage peak, the piston-cylinder system acting as damping.
  • a weft thread 1 is moved from a stationary one outside of the one by warp threads 2 formed shed 3 deducted remaining spool 4. It first arrives at a drum store 5 shown in FIG. 2, then through a thread brake 6 and from here into a main entry nozzle 7.
  • the weft thread 1 is blown past a pair of scissors 8 into the shed 3 with a weaving width W via this main entry nozzle 7.
  • the path of the weft thread 1 in the shed 3 is accompanied by relay nozzles 9, which are connected via solenoid valves 10 to a storage tube 11 for compressed air.
  • the tip of the weft thread 1 After the tip of the weft thread 1 emerges from the shed 3, it arrives in a funnel 12 of a suction device 13 and is cut off, the respective thread end being inserted into the edge region of the weaving width by insertion devices 14 on both sides.
  • a compressed air line 15 for the connection of the storage tube 11 to a compressed air unit 16 can also be seen on the side.
  • the side walls of the air-jet weaving machine R are identified by 17 and a goods tree by 18.
  • FIG. 2 it can be seen that the main entry nozzle 7 is preceded by a damping device 20 according to the invention.
  • This damping device essentially consists of an energy accumulator 21, via which the weft thread 1 is deflected from its linear path. This deflection takes place, inter alia, by means of deflection 22 arranged on each side of the energy accumulator 21, while the energy accumulator 21 engages the weft thread 1 approximately centrally between the two deflections 22 with an apex deflection 23.
  • FIG. 3 A possible variation of the method according to the invention is shown in FIG. 3, with both the deflections 22 and the vertex deflection 23 being designed so that they can be moved relative to the path of the weft thread 1.
  • the arrangement of the energy store 21, deflections 22 and crown deflection 23 is shown as it is during the course of the weft thread entry.
  • the deflections 22 are moved downward in the direction of the arrow y, so that the weft thread 1 is deflected out of its path and deflected via the crown deflection 23.
  • the energy accumulator 21 is designed in such a way that it gives in to the force exerted by the deflection of the weft thread 1 on the crown deflection 23, as indicated in FIG. 3, right image. The yielding can take place to such an extent that the weft thread 1 approximates its straight path again.
  • the deflections 2 can be stationary, while the energy store 21 is constructed in such a way that the crown deflection 23 is extended towards the end of the weft thread entry and deflects this weft thread 1 out of its path. Thereafter, the force inherent in the energy accumulator 21 is reduced, so that, according to this reduction by the pulling of the weft thread 1, the crown deflection 23 returns to the starting position.
  • this damping device 20a consists of a compression spring 24, a plate 25 or the like being seated on the compression spring 24 for thread protection. Furthermore, a thread guide is indicated at 26, the thread can be between two guides 26a and 26b are directed.
  • this damping device 20a has a sufficiently high intrinsic frequency to return to the starting position in good time after the deflection has taken place. It is a very simple means of reducing the thread tension peaks somewhat, although during the weft thread insertion, the constant deflection of the weft thread 1 under tension of the compression spring 24 may result in a deterioration in the fabric quality. Because of this disadvantage, a controlled or even better, a regulated damping device is preferred, which is only the time effectively required in engagement with the weft thread 1.
  • the compression spring was replaced by a light plunger magnet.
  • the corresponding electromagnets 27 are arranged in a stationary manner, while the armature 28 can move in the direction of the arrow.
  • the armature can be brought into the thread path under electromagnetic control, where it then acts as a combined "brake-damper" element. In order to avoid vibrations when deflecting, the deflection can take place against a stop, which is described below.
  • the exemplary embodiment of a damping device 20c according to FIG. 7 works according to the similar principle.
  • the apex deflection 23 is moved in the arrow direction shown there by means of a pneumatically actuated piston-cylinder system 29.
  • This piston-cylinder system 29 is connected via a compressed air connection 30 to a corresponding compressed air source, not shown in detail.
  • the intervention through the deflections 22 takes place, for example, so quickly by a linear motor that the compression spring 24 is not compressed too early, but only when a thread tension peak occurs. This can then be reduced more, since a higher damping effect is achieved by the low spring constant of the compression spring 24 and the deflection path of the weft thread 1 which is still fully preserved.
  • the exemplary embodiment of a damping device 20d according to FIG. 6 again corresponds more closely to that according to FIG. 4.
  • the Weft thread 1 deflected by a leaf spring 31.
  • this leaf spring 31 is pushed back.
  • the leaf spring 31 is acted upon by an air flow from a compressed air connection 32, which more or less supports the spring action of the leaf spring 31, as a result of which the braking and damping effect is temporally dependent on the air pressure is changeable.
  • FIG. 8 also shows an elastic stop 33 against which the apex deflection 23 presses in the extended state.
  • the weft thread 1 is clamped in, so that the braking effect can be increased.
  • the elastic stop 33 also serves to avoid bouncing in the end position when using the damping device 20d based on the plunger magnet principle.
  • All deflections 22 and 23 should be made of a material with a low friction factor, for example sapphire glass or the like.
  • FIG. 9 again shows a simple exemplary embodiment of a damping device 20e, which corresponds to that according to FIG. 4. However, this is not a compression spring, but a leaf spring with an attached spiral spring.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)

Claims (8)

  1. Procédé d'utilisation d'une machine à tisser, en particulier d'une machine à tisser à tuyère d'air, comportant un dispositif (20) disposé dans le parcours du fil de trame entre un dispositif de freinage (6) et la tuyère principale (7), en vue d'éviter, pendant l'opération de freinage vers la fin de l'introduction du fil, des pointes de tension dans le fil de trame (1) qui se trouve en cet endroit, dispositif par lequel le fil de trame (1) est amené hors de son parcours lors du freinage, et par lequel des pointes de tension dans le fil (1) sont amorties par le fait que la déviation est rendue au moins partiellement réversible, caractérisé en ce que la vitesse du fil de trame est mesurée, et en ce que la valeur mesurée est utilisée pour réguler le début, la durée et l'amplitude de la déviation en vue du freinage, et/ou pour réguler le début, la durée et l'amplitude de la réduction de la déviation du fil de trame (1) en vue de l'amortissement.
  2. Machine à tisser, en particulier machine à tisser à tuyère d'air (R), pour l'exécution du procédé selon la revendication 1, comportant un dispositif (7, 9) d'introduction du fil de trame (1) dans la foule (3), ainsi qu'un dispositif de saisie (12, 13) du fil de trame (1) à l'autre extrémité de la foule, et comportant un dispositif d'amortissement (20) disposé dans le parcours du fil de trame (1) après le dispositif de freinage (6) et avant la tuyère principale d'introduction (7), en vue d'éviter des pointes de tension dans le fil de trame (1), au moins deux corps déviateur (22, 23) étant associés au dispositif d'amortissement en vue de la modification de la déviation du fil de trame (1), caractérisée en ce qu'il existe des moyens en vue de déterminer la vitesse du fil de trame ainsi que des moyens de régulation du début, de la durée et de l'amplitude de la déviation lors du freinage ou en vue de celui-ci, et/ou pour la régulation du début, de la durée et/ou de l'amplitude de la réduction de la déviation du fil de trame par les corps déviateurs (22, 23), en fonction de la vitesse du fil de trame.
  3. Machine à tisser selon la revendication 2, caractérisée en ce que le dispositif d'amortissement (20) est constitué d'un accumulateur de force (21) et d'un déviateur de pointe (23) coopérant avec celui-ci en vue d'attaquer le fil de trame (1).
  4. Machine à tisser selon la revendication 3, caractérisée en ce que l'accumulateur de force est un ressort de compression ou à lame (24, 31) précontraint, ou un ressort spiralé (34) ou similaire.
  5. Machine à tisser selon la revendication 4, caractérisée en ce que des deux côtés du déviateur de pointe (23) est chaque fois prévu un déviateur (22), ces déviateurs pouvant être par ailleurs guidés suivant la direction (y) dans le parcours du fil de trame (1), en opposition à la direction d'action de l'accumulateur de force du déviateur de pointe (23).
  6. Machine à tisser selon la revendication 2, caractérisée en ce que le dispositif d'amortissement (20b) est constitué d'un plongeur (28) déplacé par un électro-aimant (27).
  7. Machine à tisser selon la revendication 2, caractérisée en ce que le dispositif d'amortissement (20c) est constitué d'un système (29) à cylindre et piston actionné pneumatiquement, le piston étant relié à un déviateur de pointe (23).
  8. Machine à tisser selon l'une des revendications 2 à 7, caractérisée en ce qu'au déviateur de pointe (23) ou à la pointe du plongeur (28) qui attaque et dévie le fil de trame (1) est associée une butée élastique (33), sur laquelle vient buter le déviateur de pointe (23) ou la pointe du plongeur (28) en position d'utilisation déviée, et qui pince le fil de trame (1).
EP89810527A 1988-08-25 1989-07-12 Procédé pour éviter les pics de contrainte dans la trame lors de son introduction au moment du freinage Revoked EP0356380B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3169/88 1988-08-25
CH316988 1988-08-25

Publications (2)

Publication Number Publication Date
EP0356380A1 EP0356380A1 (fr) 1990-02-28
EP0356380B1 true EP0356380B1 (fr) 1994-11-23

Family

ID=4250116

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89810527A Revoked EP0356380B1 (fr) 1988-08-25 1989-07-12 Procédé pour éviter les pics de contrainte dans la trame lors de son introduction au moment du freinage

Country Status (4)

Country Link
US (1) US4962796A (fr)
EP (1) EP0356380B1 (fr)
JP (1) JP2992890B2 (fr)
DE (1) DE58908655D1 (fr)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4008058A1 (de) * 1990-03-14 1991-09-19 Stoll & Co H Einfaedel- und fadenwechselvorrichtung fuer fadenfuehrer
IT1248716B (it) * 1990-06-11 1995-01-26 Vamatex Spa Dispositivo per la regolazione della tensione ed il recupero del filo di trama in telai di tessitura
EP0475892B1 (fr) * 1990-09-10 1995-05-17 Sulzer RàœTi Ag Frein de fil pour métiers à tisser
DE4131656A1 (de) * 1991-09-23 1993-03-25 Iro Ab Verfahren und webmaschine
DE4131652A1 (de) * 1991-09-23 1993-04-01 Iro Ab Webmaschine und eintragbremse fuer webmaschinen
JP2955145B2 (ja) * 1992-09-08 1999-10-04 東レ株式会社 扁平糸織物とその製造方法および製造装置
BE1009297A3 (fr) * 1993-04-16 1997-02-04 Nissan Texsys Co Ltd Systeme d'insertion de trame pour metier a jet de fluide.
BE1007898A3 (nl) * 1993-12-22 1995-11-14 Picanol Nv Inrichting voor weefmachines.
SE503620C2 (sv) * 1994-02-14 1996-07-22 Aplicator System Ab Trådmatningsbuffert för matning av tråd
IT1283381B1 (it) * 1996-07-31 1998-04-17 Roj Electrotex Nuova Srl Procedimento per controllare l'inserimento del filo di trama in un telaio di tessitura.
IT1284778B1 (it) * 1996-09-03 1998-05-21 Lgl Electronics Spa Freno di trama perfezionato, particolarmente per telai ad aria
ATE249388T1 (de) * 1998-03-03 2003-09-15 Aplicator System Ab Verschlingungsschutz für einen fadenlieferspeicher
NL1011171C1 (nl) * 1999-01-29 2000-08-01 Te Strake Bv Weefmachine met een inlooprem.
BE1014441A3 (nl) * 2001-10-29 2003-10-07 Picanol Nv Werkwijze en inrichting voor het toevoeren van inslaggaren bij een weefmachine, alsmede rem- en/of dempingsmechanisme hierbij toegepast.
US7543610B2 (en) * 2006-06-16 2009-06-09 Sultex Ag Thread clamp for a rapier head
DE10261774A1 (de) * 2002-12-20 2004-07-01 Picanol N.V. Vorrichtung und Verfahren zum Strecken
BE1016183A3 (nl) * 2004-09-08 2006-04-04 Picanol Nv Werkwijze en inrichting voor het klemmen van een inslagdraad bij een weefmachine.
EP1811068B1 (fr) * 2006-01-24 2009-06-17 Sultex AG Frein de trame avec commande
EP2034061B1 (fr) * 2007-09-10 2010-09-01 ITEMA (Switzerland) Ltd. Dispositif de coupe pour une machine à tisser et son procédé de fonctionnement
CZ2019651A3 (cs) * 2019-10-21 2021-04-28 Rieter Cz S.R.O. Způsob pohonu mechanického prvku obsahujícího přízový záchyt na textilním stroji, zařízení pro pohyb přízí na textilním stroji a textilní stroj

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH251626A (de) * 1944-12-09 1947-11-15 Sulzer Ag Verfahren zur Regelung der Spannung des Schussfadens bei Greiferwebstühlen.
CH453244A (de) * 1966-03-15 1968-06-14 Sulzer Ag Webverfahren und Webmaschine zur Durchführung des Verfahrens
NL7511117A (en) * 1975-09-19 1977-03-22 Picanol Nv Double acting yarn brake for weft in shuttleless looms - responds quickly to variations in tension, minimising irregularities
CH623865A5 (en) * 1978-08-09 1981-06-30 Moessinger Sa Method for adjusting the speed of a yarn inserted in the shape of a loop
CH646397A5 (de) * 1979-01-18 1984-11-30 Bonas Machine Co Fadenzufuehrvorrichtung zum intermittierenden zufuehren von fadenmaterial unter spannung.
CH654601A5 (de) * 1982-04-07 1986-02-28 Sulzer Ag Schussfadenspannvorrichtung fuer webmaschinen, insbesondere greiferpojektil-webmaschinen.
NL8203808A (nl) * 1982-09-30 1984-04-16 Rueti Te Strake Bv Werkwijze voor het met behulp van een stromend medium transporteren van een inslagdraad door het weefvak bij een spoelloze weefmachine, alsmede weefmachine, ingericht voor het toepassen van deze werkwijze.
CH657388A5 (en) * 1983-03-22 1986-08-29 Textilma Ag Ribbon loom
EP0155431A1 (fr) * 1984-03-07 1985-09-25 Maschinenfabrik Sulzer-Rüti Ag Procédé d'insertion de fil de trame pour un métier à tisser et métier à tisser pour réaliser ce procédé
EP0155432A1 (fr) * 1984-03-23 1985-09-25 GebràœDer Sulzer Aktiengesellschaft Machine à tisser
DE3446567C1 (de) * 1984-12-20 1986-05-07 Lindauer Dornier Gmbh, 8990 Lindau Schussfadenbremse mit stufenweise steuerbarer Bremswirkung
IT1188625B (it) * 1986-03-25 1988-01-20 Roy Electrotex Spa Dispositivo smorzatore delle oscillazioni e vibrazioni dei fili di trama in dispositivo alimentatori della trama per telai ad aria
EP0268550B1 (fr) * 1986-10-20 1991-12-11 GebràœDer Sulzer Aktiengesellschaft Tendeur de fils pour machine textile
DE3637919A1 (de) * 1986-11-06 1988-05-19 Dornier Gmbh Lindauer Schussfadenbremse mit steuerbarer bremswirkung fuer schuetzenlose webmaschinen

Also Published As

Publication number Publication date
JPH0299644A (ja) 1990-04-11
JP2992890B2 (ja) 1999-12-20
US4962796A (en) 1990-10-16
EP0356380A1 (fr) 1990-02-28
DE58908655D1 (de) 1995-01-05

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