EP1154946B1 - Vorrichtung und verfahren zum variierenden bremsen eines laufenden fadens - Google Patents

Vorrichtung und verfahren zum variierenden bremsen eines laufenden fadens Download PDF

Info

Publication number
EP1154946B1
EP1154946B1 EP00907612A EP00907612A EP1154946B1 EP 1154946 B1 EP1154946 B1 EP 1154946B1 EP 00907612 A EP00907612 A EP 00907612A EP 00907612 A EP00907612 A EP 00907612A EP 1154946 B1 EP1154946 B1 EP 1154946B1
Authority
EP
European Patent Office
Prior art keywords
actuator
braking effect
force
braking
yarn
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
Application number
EP00907612A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1154946A1 (de
Inventor
Lars Helge Gottfrid Tholander
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.)
Iropa AG
Original Assignee
Iropa 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
Application filed by Iropa AG filed Critical Iropa AG
Publication of EP1154946A1 publication Critical patent/EP1154946A1/de
Application granted granted Critical
Publication of EP1154946B1 publication Critical patent/EP1154946B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • 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
    • B65H59/22—Co-operating surfaces mounted for relative movement and arranged to apply pressure to material
    • 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 device specified in the preamble of claim 1 Type and a method according to the preamble of claim 13.
  • a controlled thread brake is useful in a rapier or projectile weaving machine used the thread entered in the shed for to give an optimal entry process important specific tension profile, that varies during the entry process. For example, it is in a rapier weaving machine expedient to brake harder at the beginning of the entry, via the following Acceleration phase of the handler to reduce the braking effect or to passivate during the handover phase from the handler gripper to the slave gripper to brake harder again, at least over the acceleration phase of the slave gripper to reduce or passivate the braking effect, and against Brake the end of the entry again until the thread is inserted from the slave gripper is released.
  • a controlled thread brake known from EP-A-0 524 429 either not at all or with a single one set on the adjuster Braking force value braked.
  • the braking force can be adjusted manually on the adjusting device choose. A change in force is due to an entry process short time available. Because the braking force for all braking phases is the same, it represents a compromise, so that the braking effect for one Operating phase too small and too strong for another. Because it is expedient, during different phases of an entry process with different Braking effects.
  • the invention has for its object a device of the aforementioned To create a way that is structurally easy during each entry process can create timed thread tension profile, or specify a method, with which an optimal thread tension profile can be achieved with each insertion process.
  • the second actuator is the force determining the braking effect only adjusted when the braking effect is passivated is the required one Braking effect exactly at the time or at the angular position of the main shaft Weaving machine available, on which the first actuator has the braking effect activated quickly Since the time interval between two operating phases with activated Braking effect can be used to vary the force, and the first actuator each Can activate or passivate the braking effect extremely quickly achieve an optimal tension profile of the thread, especially by the fact that the first and second actuators share the task of activating the braking effect or passivate and vary the strength.
  • An electrical, electromagnetic, piezoelectric, electromechanical, pneumatic or hydraulic second actuator used who uses the times when the braking effect is passivated to change the force while the first actuator only for quick activation and passivation of the braking effect responsible for.
  • Both actuators are preferably connected to a common control device, which ensures that the second actuator is only activated if the first actuator has passivated the braking effect.
  • the second actuator can be particularly useful in a so-called window-disk thread brake use to adjust the contact pressure of the spring plate with the abutment bolt having the window for passivating the braking effect cooperates.
  • the control of the second actuator is control engineering simply because the already predetermined rotational positions of the abutment pin or the first actuator with a passivated or activated braking effect are known. It can be an abutment pin with only one peripheral Windows or with several peripheral windows are used, with a first Actuator that either rotates step by step or in one direction continues to rotate.
  • the second actuator is for adjusting the force with a passivated braking effect but can also be used for controlled band brakes or disc brakes. requirement is only a first actuator that quickly sets the braking effect set passivate and activate enough.
  • the spring plate is expediently arranged on a rotatably supported holder, whose rotational position together with the force of the spring plate determines the force, and the second actuator is a rotary actuator for the holder. It is convenient the second actuator is designed so that it corresponds to a certain force Holds the rotary position automatically.
  • control device may be a logical actuation inhibitor included, which prevents the second actuator from adjusting the force for as long as until the braking effect is passivated by the first actuator.
  • the second actuator can move back and forth between at least two positions be producible, the predetermined values or a predetermined ratio between represent the values of force. Changes in the predetermined values or the relationship between the predetermined values can still be on the control side be made.
  • the force setting device is also a manual one Has actuation. Then the force can be achieved as with conventional window spring-disk thread brakes also change by hand, but not during an entry process.
  • the second actuator can namely have a slower response than the first actuator, because for the change in force that is in practice is usually only relatively minor, with a passive braking effect during an entry process enough time is available.
  • the braking effect can be also use the second actuator to continuously adjust the determining force.
  • a controlled thread brake 1 has a U-shaped support frame 2, in one leg 3 an inlet opening 4 for a thread Y and thus a thread take-off eyelet 7 is provided in alignment on the other leg 6.
  • a thread delivery device indicated only by dashed lines F downstream and a weaving machine W consuming thread Y upstream, preferably a rapier or projectile loom.
  • a web 9 of the support frame 2 rotatably supports a dome-like near the leg 3 Holder 10, which can be rotated by means of an adjusting device E, namely in the embodiment shown by a second actuator M2, which as Rotary drive and positioner designed for the holder 10 and either on the support frame 2 or is fixed in a holder 17.
  • the adjusting device E additionally equipped with a manual control, not shown, that it allows either to rotate the holder 10 relative to the second actuator M2, or to adjust the second actuator M2 with the holder 10 relative to the support frame 2.
  • a spring plate 14 made of resilient material fixed with screws 13.
  • the end of the spring plate 14 could also in the longitudinally slotted holder 10 be tied.
  • One for thread take-off eyelet 7 facing end region of the spring plate 14 is supported on one in the support frame 2 rotatable abutment pin 15 approximately parallel to the holder 10.
  • the spring lamella 14 represents a first brake element B, while the abutment pin 15 second braking element B 'forms.
  • the spring plate 14 lies with a certain force resilient on the circumference of the abutment pin 15. The force is adjustable using the second actuator M2 and / or, if present, by means of manual actuation of the Adjustment device E.
  • the thread Y runs with a predetermined thread path between the Spring plate 14 and the abutment pin 15 through. That of the thread take-off eyelet 7 facing end of the spring plate 14 is expediently bent, so that the thread Y in the thread brake 1 essentially only in the contact area between the spring plate 14 and the abutment pin 15 braked by clamping becomes.
  • the abutment pin 15 is operatively connected to a first actuator M1, who sits in the holder 17.
  • the first actuator M1 is, for example, a permanent magnet motor, which continues to rotate gradually in one direction or between can rotate two predetermined rotary positions back and forth. It is a quickly responsive rotary drive for the abutment pin 15. In the shown Embodiment, the range of rotation is e.g. between 90 and 180 °.
  • the abutment pin 15 is on a part of its circumference with a cross-sectional reducing Window 19 provided.
  • the abutment pin forms axially on both sides of the window 19 15 in cross section circular coils 20, 21, which serve as support surfaces serve for the spring plate 14. 1 and 2, the window 19 is one extending over about 90 ° in circumferential length reduction in cross section Abutment bolt 15 with a convex bottom 22 and linear or rounded Transitions 23 formed in the peripheral surface.
  • the weaving machine W is equipped with a control unit CU, with which the thread entry is controlled.
  • the control CU is in turn, possibly via a further electronic control device C, in conjunction with the first actuator M1, which has a rotary drive for the Abutment pin 15 forms, and also with the second actuator M2, which is remote controlled actuatable adjustment device E for the holder 10 or the force with which the two brake elements B, B 'are pressed against one another in a resilient manner.
  • the force with which the spring plate 14 presses against the abutment pin 15 is variable by means of the second actuator M2, and likewise via the expediently common control device C. Care is taken on the control side, that actuation of the second actuator M2 at least essentially exclusively then occurs when the first actuator M1 the abutment pin 15 in the 2 rotated and passivated the braking effect. 1 is the Braking effect activated and as high as set by the second actuator M2 is.
  • the braking effect to change the determining force is done by turning the holder 10 in the rotational position of the abutment pin 15 of Fig. 2, at which the thread Y window 19 runs practically without brakes or with a very low braking effect, and the spring plate 14 is supported on the ring bundles 20, 21.
  • a change in the force could also be caused by a transverse displacement of the holder 10 take place in the support frame 2, namely by means of a displacement drive second actuator M2.
  • the window spring disk brake shown in FIGS. 1 and 2 is only a non-restrictive one Example of a controlled thread brake.
  • the principle of operation while an entry process to change the force with which two braking elements against each other is generally useful for thread brake types where the braking effect is quickly activated and passivated by means of a first actuator can be, so that the second actuator in operating phases with passivated braking effect has enough time, even during the same entry process Power to change.
  • This means that the concept according to the invention also applies to disc brakes, Band brakes or can also be used for multi-disc brakes, in which the first Actuator quickly turns the braking effect on and off, while the second actuator changes the force that determines the respective braking effect.
  • Fig. 1 it is indicated that the control device C for positioning or activation the braking effect on the first actuator M1 gives commands i- or i +, however to the second actuator M1 control commands (-) or (+) if the braking effect determining force is to be changed.
  • This is conveniently done with reference on the angle of rotation of the weaving machine, which is only indicated schematically, as by the Angle sign indicated at CU.
  • FIG. 3 is to illustrate how a particular thread tension profile is achieved by means of the controlled thread brake 1 for a rapier weaving machine W, in which the thread Y is first moved from a bringer gripper to approximately the middle of the The shed is transported, then handed over to and from the slave gripper completely pulled through the compartment and finally released.
  • the three hatched Fields in the diagram of FIG. 3 illustrate operating phases with activated braking effect, during the intermediate, non-hatched fields operational phases show with passivated braking effect.
  • Thread tension corresponds to f1.
  • the first actuator M1 has received the command i- and passivates the braking effect.
  • the thread brake 1 is in the position from Fig. 2.
  • the first actuator M1 receives the command i +, so that it activates the braking effect, which begins almost instantaneously like this is predetermined by the set value f1.
  • This braking effect is in the first hatched field until the command i- from the control device C to the first actuator M1 is given, and this the braking effect practically suddenly passivated.
  • the second actuator M2 can already receive the signal (+) received so that it starts at an angular position x1, the force from the value f1 to increase the value f2, which is reached at an angular position x2, at the latest for the angular position, for the second hatched field, the first actuator M1 receives the i + command again and the braking effect is reactivated. The The braking effect is then determined by the value f2, which is initially maintained, until the first actuator M1 receives the i- command at a further angular position and the braking effect is suddenly passivated.
  • the Value f2 back to value f1 (or another one) by means of the second actuator M2 Value) so that the value f1 (or another value) is at an angular position x4 is present.
  • the braking effect is set to value f1 to create the third hatched field before finally using the command i- the braking effect is again passivated to the first actuator M1.
  • the Thread brake 1 is ready for the next entry process, e.g. with the value to start f1.
  • Fig. 3 shows that compared to the speed with which the actuator M1 the braking effect Activate and passivate, the actuator M2 has much more time available has, or a larger angular range than this, to the force to change. This enables a relatively optimal tension profile in the thread Y to achieve without a special control side for the second actuator M2 To drive effort.
  • a different tension profile could be required for a projectile weaving machine, than that shown in Fig. 3 for example for a rapier weaving machine. But also with A projectile weaving machine has operating phases during each entry process or weaving machine cycle (at least one operating phase) in which the braking effect is passivated. Then the force that determines the braking effect is adjusted, as soon as the first actuator M1 reactivates the braking effect.
  • the second actuator M2 adjust two different forces or move between these two forces and switch on.
  • the second actuator M2 continuously to generate certain curve profiles with that by the first actuator generated curve profile are superimposed.
  • the setting of the respective force can be carried out by the control device C alone.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Braking Arrangements (AREA)
EP00907612A 1999-02-23 2000-02-23 Vorrichtung und verfahren zum variierenden bremsen eines laufenden fadens Expired - Lifetime EP1154946B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9900665A SE9900665D0 (sv) 1999-02-23 1999-02-23 Vorrichtung und Verfahren zum variierenden Bremseneines laufenden Fadens
SE9900665 1999-02-23
PCT/EP2000/001492 WO2000050326A1 (de) 1999-02-23 2000-02-23 Vorrichtung und verfahren zum variierenden bremsen eines laufenden fadens

Publications (2)

Publication Number Publication Date
EP1154946A1 EP1154946A1 (de) 2001-11-21
EP1154946B1 true EP1154946B1 (de) 2003-05-07

Family

ID=20414619

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00907612A Expired - Lifetime EP1154946B1 (de) 1999-02-23 2000-02-23 Vorrichtung und verfahren zum variierenden bremsen eines laufenden fadens

Country Status (7)

Country Link
US (1) US6505653B1 (sv)
EP (1) EP1154946B1 (sv)
KR (1) KR20010111493A (sv)
CN (1) CN1159200C (sv)
DE (1) DE50002070D1 (sv)
SE (1) SE9900665D0 (sv)
WO (1) WO2000050326A1 (sv)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7543610B2 (en) * 2006-06-16 2009-06-09 Sultex Ag Thread clamp for a rapier head
BE1016183A3 (nl) * 2004-09-08 2006-04-04 Picanol Nv Werkwijze en inrichting voor het klemmen van een inslagdraad bij een weefmachine.
EP1811068B1 (de) * 2006-01-24 2009-06-17 Sultex AG Gesteuerte Fadenbremse
BE1018327A3 (nl) * 2008-10-31 2010-09-07 Picanol Nv Draadrem en werkwijze om de draadrem aan te wenden.
US9908739B2 (en) * 2012-04-24 2018-03-06 Curt G. Joa, Inc. Apparatus and method for applying parallel flared elastics to disposable products and disposable products containing parallel flared elastics
ITUB20155266A1 (it) * 2015-10-30 2016-01-30 Roj S R L Freno elettromagnetico pilotato per il controllo della tensione dei fili di trama in macchine tessili

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0475892B1 (de) * 1990-09-10 1995-05-17 Sulzer RàœTi Ag Fadenbremse für Webmaschinen
DE9113430U1 (sv) 1991-07-22 1992-12-24 Sobrevin Societe De Brevets Industriels-Etablissement, Vaduz, Li
CH686955A5 (de) * 1992-03-16 1996-08-15 Der Loepfe Ag Geb Fadenbremseinrichtung.
DE9215226U1 (de) 1992-11-09 1994-05-11 Sobrevin Fadenbremse
US5476122A (en) * 1993-03-05 1995-12-19 Lindauer Dornier Gesellschaft Mbh Weft thread brake responsive to yarn characteristics in a loom
IT1310749B1 (it) * 1999-11-30 2002-02-22 Lgl Electronics Spa Metodo e dispositivo di controllo di freni di trama elettrocomandatiper la regolazione automatica della tensione meccanica del filo di

Also Published As

Publication number Publication date
CN1344219A (zh) 2002-04-10
SE9900665D0 (sv) 1999-02-23
EP1154946A1 (de) 2001-11-21
CN1159200C (zh) 2004-07-28
KR20010111493A (ko) 2001-12-19
WO2000050326A1 (de) 2000-08-31
DE50002070D1 (de) 2003-06-12
US6505653B1 (en) 2003-01-14

Similar Documents

Publication Publication Date Title
DE3446567C1 (de) Schussfadenbremse mit stufenweise steuerbarer Bremswirkung
EP0350447B1 (de) Verfahren zur Kettspannungssteuerung und Webmaschine mit Kettspannungsorgane
EP1348493B1 (de) Motorische Verstellung eines Lochsiebs
DE1635365C3 (de) Vorrichtung zum Stauchen insbesondere textiler Bahnen
WO1996008668A1 (de) Drosselventil für druckluft o.dgl. und seine verwendung in einer luftwebmaschine
CH691904A5 (de) Vorrichtung zur Einstellung der Spannung eines Fadens.
DE4306911C1 (de) Schußfadenbremse mit steuerbarer Bremswirkung
WO1993006279A2 (de) Webmaschine und eintrag bremse für webmaschinen
EP1154946B1 (de) Vorrichtung und verfahren zum variierenden bremsen eines laufenden fadens
EP0524429A1 (de) Vorrichtung zur unterschiedlichen Bremsung laufender Fäden, Drähte oder dergleichen
EP3472378B1 (de) Nadelbandwebmaschine und entsprechendes webverfahren
EP2650420A1 (de) Verfahren und Vorrichtung zum Fadenheften von Buchblöcken, sowie Buchfertigungsstrasse mit einer solchen Vorrichtung
WO1998045201A1 (de) Fadenbremse
DE2333858C3 (de) Vorrichtung zum Bewegen einer Wirknadel einer schützenlosen Webmaschine
EP0816275B1 (de) Fadenbremse
DE102008011509A1 (de) Fadenspanneinrichtung an einer Näh- oder Stickmaschine
EP2683862B1 (de) Schaftwebmaschine und entsprechendes webverfahren
WO1992001099A1 (de) Fadenspeicher- und -liefervorrichtung
DE4141945C1 (en) Sewing machine thread tensioner - has tensioning element in effective connection with electromagnet
DE2051573A1 (de) Antriebsaggregat zur Erzeugung von gleichzeitigen Hub und Drehschwingungen
DE2143001B2 (de) Bistabile Axialführung für Stößel und dergl. in Sprungwerken
EP1218275B1 (de) Fadenbremsvorrichtung
EP0699613B1 (de) Spulengatter für Spulen mit fadenförmigem Gut
WO1997049850A1 (de) Fadenbremse
DE60109842T2 (de) Verfahren und Vorrichtung zum Steuern und Regeln der Plüschhenkelbildung in Frottierwebmaschinen

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20010822

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: IROPA AG

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: IROPA AG

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): BE CH DE IT LI NL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20030507

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: BOVARD AG PATENTANWAELTE

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: GERMAN

REF Corresponds to:

Ref document number: 50002070

Country of ref document: DE

Date of ref document: 20030612

Kind code of ref document: P

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

Ref document number: 1154946E

Country of ref document: IE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20040210

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20060330

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070901

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20080221

Year of fee payment: 9

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090228

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090228

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20110226

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20110221

Year of fee payment: 12

BERE Be: lapsed

Owner name: *IROPA A.G.

Effective date: 20120228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120223

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120228