EP0841418B1 - Dispositif pour contrôler la tension des fils de chaíne et métier à tisser avec un tel dispositif - Google Patents

Dispositif pour contrôler la tension des fils de chaíne et métier à tisser avec un tel dispositif Download PDF

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Publication number
EP0841418B1
EP0841418B1 EP96810773A EP96810773A EP0841418B1 EP 0841418 B1 EP0841418 B1 EP 0841418B1 EP 96810773 A EP96810773 A EP 96810773A EP 96810773 A EP96810773 A EP 96810773A EP 0841418 B1 EP0841418 B1 EP 0841418B1
Authority
EP
European Patent Office
Prior art keywords
tensioner
warp
accordance
spring member
regulating valve
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
EP96810773A
Other languages
German (de)
English (en)
Other versions
EP0841418A1 (fr
Inventor
Godert Dr. De Jager
Frank Dr. Lehnert
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
Sulzer Textil 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 Sulzer Textil AG filed Critical Sulzer Textil AG
Priority to DE59608400T priority Critical patent/DE59608400D1/de
Priority to EP96810773A priority patent/EP0841418B1/fr
Priority to US08/947,400 priority patent/US5890519A/en
Priority to JP30727997A priority patent/JP3875782B2/ja
Publication of EP0841418A1 publication Critical patent/EP0841418A1/fr
Application granted granted Critical
Publication of EP0841418B1 publication Critical patent/EP0841418B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D49/00—Details or constructional features not specially adapted for looms of a particular type
    • D03D49/04—Control of the tension in warp or cloth

Definitions

  • the invention relates to a device for control a warp tensioner according to the preamble of Claim 1 and a weaving machine with such Contraption.
  • a device of the type mentioned is from the DE-U-93 04 801.7 and known from DE 38 33 685 A1.
  • the swivel is mounted Spanning boom monitored by means of a position sensor and biased by an air spring.
  • the air spring is preloaded by manual actuation.
  • the air spring is a control valve assigned to the by changing the air pressure To change tension in the warp, whereby the Warp tension proportional to the change in air pressure behaves.
  • the air spring has a predetermined one Spring characteristic and is therefore only limited applicable. This also applies when the warp tensioner is preloaded with coil spring or torsion bars.
  • the inventive in question here Devices are related to the elements the weaving machine described, which on the course of the Apply warp tension.
  • the warp is 1 from a warp beam 2 via a deflection beam 3, and one Warp tensioner 4 and through the heald frames 5 and a Reed 6 and the fabric 7 over a Goods removal device 8 guided.
  • the warp beam 2 is with a warp let-off device 9.
  • the Warp tensioner 4 has the warp 1 during To apply tension to the weaving process.
  • the Warp tensioner 4 is lightweight and supported several times and includes a clamping element 11 and a support 12 on which the clamping element is rotatably mounted and which is held on a support tree 14, such that the clamping element 11 is pivotable about the axis 15.
  • At least one Lever 16 is attached to the support tree 14 and with a Air spring 21 connected, which is part of a subsequent described control device is.
  • the air spring 21 is supported on the one hand on the weaving machine frame 17 and on the other hand by means of an organ 18 with the lever 16 connected such that the air spring 21 in the direction of Double arrow B is adjustable.
  • the control device contains the aforementioned air spring 21, an electric actuated control valve 22 with exhaust valve, a sensor 23 for scanning the position of the warp tensioner 4, a pressure line 24, a connecting line 25 and one Control device.
  • the control device includes one Control unit 31, which is part of the weaving machine control (not shown) or formed as a separate unit and with the terminal 32 of the weaving machine is connected to transmit signals and an arrangement 26, around the swivel range of the warp tensioner 4 to be determined.
  • the arrangement includes two groups that each a container 33 and a 2/2-way valve 34 and which are connected in series via a Stub 36 connected to the connecting line 25 are. For the purpose of vibration damping, the groups are each assigned a throttle 35.
  • the control valve 22 and the Valves 34 and throttles 35 are signal-transmitting with the Control unit 31 connected.
  • Terminal 32 is used to set the Target position of the warp tensioner, the determination of the Swivel range of the warp tensioner, the Warp tension and damping adjustment.
  • the control loop becomes the setting of the setpoints formed from sensor 23, control valve 22 and air spring 21 activated and the warp tensioner through Pressurizing the air spring and controlling the Warp let down in the middle target position and always kept in this by the control loop.
  • To step Deviations from the target position which one Deviation in the warp tension, so it will Signal from the position sensor or a signal from a Warp force sensor for controlling the Warp let-off device or to change the air pressure
  • the air spring used the target warp tension and the To restore the desired position of the warp tensioner. Instead of the signal from the warp force sensor, it is possible to a signal derived from the air pressure in the air spring to apply.
  • the warp tension is of the type of depending on the fabric to be manufactured. While with fabrics with high weft density a higher thread tension and a Small swivel range is required for tissue a constant thread tension with low weft density and a larger swivel range is required. With others Words the spring stiffness of the air spring needs to be changed become, i.e. with the well-known warp tensioners, the Spring to be replaced. This already has mentioned disadvantages result.
  • the warp thread pull becomes the main thing changed by subject training so that periodic Warp tension fluctuations occur.
  • a high warp tension is chosen and the fluctuations absorbed by the elasticity of the warp threads, while a low warp tension is provided for light fabrics and the fluctuations caused by the warp tensioner be balanced.
  • the warp tensioner can thus for one partial compensation of the warp tension at the Formation of a shed can be used, i.e. in the The warp tensioner gives part of the training for the warp opening required the chain length freely and takes this again at the close of the subject.
  • adjustable throttle valves 35 are the containers 33 upstream.
  • FIGS. 2 and 3 show an embodiment of the device, which differs from the embodiment according to FIG. 1 the arrangement of the air spring 21 and by an arrangement 27 to determine the swivel range of the Webkettspanners 4 differs.
  • Fig. 3 are A plurality of warp tensioners 4 are provided and each Warp tensioner 4 is at least one air spring 21 assigned.
  • the air springs 21 are on a carrier 38 attached, part of a detailed Loom is (Fig. 3).
  • FIG. 4 shows an embodiment of the device, which is constructed essentially the same as that Devices according to Figures 1 and 2 and of these differs in that a device 41 is provided is to vary the pressure in the air spring 21.
  • This Device includes an air spring 42 and one Actuating mechanism with a cam disk 43 and an electric drive 44, which with the Control device 31 is connected.
  • a control loop can be applied to the air spring 42 periodically charged. This can be done in the Control circuit a separate 3/3-way valve 45 that over Check valves 46 connected to the branch line 36 is or the control valve 22 is provided as an actuator become.
  • the Warp tension e.g. at the time of leafing increases, thereby advantageously the shot density of the tissue is increased and at the time of Subject crossing is increased to the division at Improved opening of the shed.
  • the Fig. 5 shows a provided with a spanning tree 11 Warp tensioner 4, which is slidable on the Machine frame 17 of a loom is arranged. The required for guiding the warp tensioner Elements are not shown.
  • Fig. 5 further shows is an air spring 51 on the one hand with the Warp tensioner and on the other hand by means of a Joint arrangement 52 connected to the carrier 38.
  • the Air spring 51 is connected via the connecting line 25 to the connected control device not shown here.
  • the Spanning tree 11 is on a plurality of warp tensioners 4 supported, at freely selectable intervals, the same or can be arranged differently (Fig. 6).
  • the joint arrangement 52 is designed that the air spring 51 about a vertical axis 53 is pivotable. As shown in FIG. 7, the spanning tree 11 deformed in the longitudinal extent and the on the Warp tension acting essentially warp are kept equally high (Fig. 7).
  • Fig. 8 shows are instead of the one-piece spanning tree 11 according to FIG. 6 a number of partial spanning trees 61 intended.
  • Each of these partial spanning trees is at least a warp tensioner 4, an air spring 51 and one Control device of the type described above assigned.
  • the partial spanning trees 61 it is possible essentially the deformation shown in Fig. 7 understand.
  • the chain coulters are achieved at the interfaces of the partial spanning trees 61 each have connecting members 62 intended.
  • the connecting members have one Middle section 63 and two insert sections 64 with crowned outer surface.
  • Fig. 10 shows a device that is hydropneumatic is operated to the position of the warp tensioner 4th adjust.
  • this device in addition to the Air spring 21 with the control circuit for pressure control and the control loop for the volume change Actuator 71 e.g. a bellows, on the one hand, with the Air spring 21 is connected and on the other hand on the carrier 38 is supported or attached and an electrical actuatable control valve 72 is provided, which on the one hand via a line 73 with the actuating element 71 and on the other hand via a line 74 with a Hydraulic source (not shown) is connected.
  • a Hydraulic source not shown
  • this Device provided a 2/2-way valve 75, the on the one hand via line 74 to the hydraulic source and on the other hand is connected to the container 33.
  • the Control valve 72 and 2/2-way valve 75 are signal-transmitting with the weaving machine control device 31 connected.
  • Fig. 11 shows a device which is pneumatic and is operated mechanically to the position of the To change warp tensioner 4. This is a Piston assembly 77 provided with a drive 78 which with the weaving machine control device 31 is connected to transmit the arrangement 77 from To control Terminal 32 from.
  • tension trees 11, 61 are tubular and advantageously with a Filling material (not shown) are provided to the To prevent kinking of the pipes.
  • the pipes can be made Metal or non-metal.
  • the device includes a spring member 21 which with the Warp tensioner 4 is in operative connection and one Control device one via a 2/2-way valve 34 container 33 communicating with the spring member 21, 51 has to increase and decrease the Volume of the air spring the spring stiffness of the Spring link and the position of the warp tensioner by to change a terminal centrally on the Weber booth site.

Claims (14)

  1. Dispositif de commande d'un tendeur de chaíne (4), comportant un organe à ressort (21, 51) contenant un fluide qui peut être relié par une vanne de réglage (22) d'une manière conductrice de fluide à un conduit de pression (24) et qui peut être relié au tendeur de chaíne (4), et comprenant un dispositif de réglage qui comporte un capteur (23) pour détecter la position du tendeur de chaíne et la vanne de réglage (22) pour modifier par une augmentation et une réduction de la pression la force de l'organe à ressort (21, 51) en vue du déplacement d'une ensouple tendeuse (11, 61) disposée au tendeur de chaíne (4), caractérisé en ce que le dispositif de réglage présente au moins un récipient (33) communiquant par un organe d'arrêt (34) avec l'organe à ressort (21, 51) et en ce que le récipient (33) sert à l'augmentation et à la réduction du volume de l'organe à ressort (21, 51) pouvant être commutés par l'organe d'arrêt (34) afin de modifier la rigidité de ressort de celui-ci.
  2. Dispositif selon la revendication 1, caractérisé par une multitude de récipients (33) et d'organes d'arrêt qui sont montés en série ou en parallèle.
  3. Dispositif selon l'une des revendications 1 ou 2, caractérisé en ce qu'il est associé à chaque récipient (33) un papillon (35).
  4. Dispositif selon l'une des revendications 1 à 3, caractérisé en ce que la vanne de réglage (22), l'organe d'arrêt (34) et le papillon (35) sont reliés en vue d'une transmission des signaux à une installation de commande (31) et/ou un terminal (32).
  5. Dispositif selon l'une des revendications 1 à 4, caractérisé par une installation (41) qui est reliée à l'organe à ressort (21) et qui est destinée à modifier la pression dans l'organe à ressort (21).
  6. Dispositif selon la revendication 5, caractérisé par un deuxième organe à ressort (42) qui est relié à l'organe à ressort (21) d'une manière communicante.
  7. Dispositif selon l'une des revendications 5 ou 6, caractérisé par des moyens (43, 44) pour actionner le deuxième organe à ressort (42).
  8. Dispositif selon l'une des revendications 1 à 4, caractérisé en ce que la vanne de réglage (22) est un organe de positionnement d'un circuit de réglage qui est destiné à commander la vanne de réglage (22) dans le sens d'une modification de la pression dans l'organe à ressort (21).
  9. Dispositif selon l'une des revendications 5 à 8, caractérisé en ce que le deuxième organe à ressort (42) respectivement la vanne de réglage (22) peuvent être commandés périodiquement.
  10. Dispositif selon l'une des revendications 1 à 9, caractérisé par un élément de positionnement (71) actionnable d'une manière hydraulique qui est relié à l'organe à ressort (21) et par une vanne de réglage (72) actionnable d'une manière électrique pour actionner l'élément de positionnement (71), où l'élément de positionnement (71) communique par un conduit (73) avec la vanne de réglage (72) pour modifier la position du tendeur de chaíne (4).
  11. Dispositif selon l'une des revendications 1 à 10, caractérisé par une vanne (74) qui communique par un conduit (75) avec le récipient (33) pour modifier par du fluide hydraulique le volume du récipient (33).
  12. Dispositif selon l'une des revendications 1 à 11, caractérisé par un agencement à piston (77) avec une commande (78) qui est en liaison active avec le tendeur de chaíne (4) pour modifier la position du tendeur de chaíne (4).
  13. Tendeur de chaíne avec un dispositif selon l'une des revendications 1 à 12, où le tendeur de chaíne comporte une ensouple tendeuse, caractérisé en ce que l'ensouple tendeuse (11) est réalisée en une respectivement plusieurs parties, et en ce que sont associés à l'ensouple tendeuse respectivement à chaque ensouple tendeuse partielle (61) au moins un organe à ressort (21, 51).
  14. Tendeur de chaíne selon la revendication 13, caractérisé en ce que l'ensouple tendeuse (11, 61) est réalisée en une forme tubulaire et est réalisée en métal ou n'est pas réalisée en métal.
EP96810773A 1996-11-12 1996-11-12 Dispositif pour contrôler la tension des fils de chaíne et métier à tisser avec un tel dispositif Expired - Lifetime EP0841418B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE59608400T DE59608400D1 (de) 1996-11-12 1996-11-12 Vorrichtung zur Steuerung eines Webkettenspanners und Webmaschine mit dieser Vorrichtung
EP96810773A EP0841418B1 (fr) 1996-11-12 1996-11-12 Dispositif pour contrôler la tension des fils de chaíne et métier à tisser avec un tel dispositif
US08/947,400 US5890519A (en) 1996-11-12 1997-10-08 Apparatus for controlling a warp tensioner of a weaving machine
JP30727997A JP3875782B2 (ja) 1996-11-12 1997-11-10 経糸テンショナを制御する装置及び同装置を備えた織機

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP96810773A EP0841418B1 (fr) 1996-11-12 1996-11-12 Dispositif pour contrôler la tension des fils de chaíne et métier à tisser avec un tel dispositif

Publications (2)

Publication Number Publication Date
EP0841418A1 EP0841418A1 (fr) 1998-05-13
EP0841418B1 true EP0841418B1 (fr) 2001-05-23

Family

ID=8225751

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96810773A Expired - Lifetime EP0841418B1 (fr) 1996-11-12 1996-11-12 Dispositif pour contrôler la tension des fils de chaíne et métier à tisser avec un tel dispositif

Country Status (4)

Country Link
US (1) US5890519A (fr)
EP (1) EP0841418B1 (fr)
JP (1) JP3875782B2 (fr)
DE (1) DE59608400D1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19740309A1 (de) * 1997-09-13 1999-06-10 Dornier Gmbh Lindauer Verfahren und Vorrichtung zum Einstellen eines Streichbaums und Kettwächters einer Webmaschine zur Erzeugung einer bestimmten Fachgeometrie
EP0937796A1 (fr) * 1998-02-18 1999-08-25 Sulzer Rüti Ag Dispositif de tension des fils de chaine pour métier à tisser et métier à tisser avec un tel dispositif
TWI303679B (en) * 2003-06-12 2008-12-01 Textilma Ag Loom
US7182769B2 (en) * 2003-07-25 2007-02-27 Medtronic, Inc. Sealing clip, delivery systems, and methods
WO2013003937A1 (fr) * 2011-05-13 2013-01-10 Litens Automotive Partnership Système et procédé d'entraînement intelligent par courroie
DE102013219942A1 (de) * 2013-10-01 2015-04-02 Lindauer Dornier Gesellschaft Mit Beschränkter Haftung Verfahren und Vorrichtung zum Aufbringen von Kräften und Bewegungen auf Kettfäden einer Webmaschine

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1209315A (en) * 1967-04-21 1970-10-21 English Electric Co Ltd Fluidic operated thread tensioning devices
CS148395B1 (fr) * 1969-09-05 1973-02-22
CH664389A5 (de) * 1984-10-16 1988-02-29 Saurer Ag Adolph Einrichtung zur steuerung der kettfadenspannung durch lageverschiebung eines streichbaumes an einer webmaschine.
DE3833685A1 (de) * 1988-10-04 1990-04-05 Mertens & Frowein Gmbh & Co Kg Vorrichtung zur kettfadenspannung an webmaschinen
DE9304801U1 (fr) 1993-04-02 1993-05-27 Chemnitzer Webmaschinenbau Gmbh, O-9010 Chemnitz, De
BE1009719A3 (nl) * 1995-10-24 1997-07-01 Wiele Michel Van De Nv Systeem voor het onder spanning brengen van grondkettingdraden op een boomstand.

Also Published As

Publication number Publication date
EP0841418A1 (fr) 1998-05-13
DE59608400D1 (de) 2002-01-17
JP3875782B2 (ja) 2007-01-31
US5890519A (en) 1999-04-06
JPH10140442A (ja) 1998-05-26

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