EP0372046B1 - Düsensteuerung für einen luftwebstuhl - Google Patents

Düsensteuerung für einen luftwebstuhl Download PDF

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Publication number
EP0372046B1
EP0372046B1 EP89906067A EP89906067A EP0372046B1 EP 0372046 B1 EP0372046 B1 EP 0372046B1 EP 89906067 A EP89906067 A EP 89906067A EP 89906067 A EP89906067 A EP 89906067A EP 0372046 B1 EP0372046 B1 EP 0372046B1
Authority
EP
European Patent Office
Prior art keywords
air
thread
picked
nozzles
shooting
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
EP89906067A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0372046A1 (de
Inventor
Adnan Wahhoud
Jochen Balken
Dieter Teufel
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.)
Lindauer Dornier GmbH
Original Assignee
Lindauer Dornier GmbH
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6355690&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0372046(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Lindauer Dornier GmbH filed Critical Lindauer Dornier GmbH
Publication of EP0372046A1 publication Critical patent/EP0372046A1/de
Application granted granted Critical
Publication of EP0372046B1 publication Critical patent/EP0372046B1/de
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
    • D03D47/28—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed
    • D03D47/30—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed by gas jet
    • D03D47/3026—Air supply systems
    • D03D47/3033—Controlling the air supply
    • D03D47/304—Controlling of the air supply to the auxiliary nozzles
    • 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 a nozzle control for an air weaving machine with a weft insertion via one or more main nozzles according to the preamble of claim 1.
  • the weft thread entry in previously known air-jet weaving machines takes place via one or more main nozzles, with one yarn being assigned to each main nozzle.
  • the main nozzles arranged in bundles are centered on the air inlet duct in such a way that one yarn can be inserted into the air inlet duct.
  • the yarn is moved in a known manner in the air inlet channel in that air is guided in the air inlet channel via relay nozzles arranged one behind the other on the reed
  • EP-A-0 189 919 Another control system is known from EP-A-0 189 919.
  • the object of the invention is to provide an automatic detection of the air effectiveness of the yarn to be processed in each case.
  • the ratio of the wing surface of the yarn in air compared to the yarn mass is defined as a parameter of the air effectiveness. It is clear from this that light yarns require a different control of the air nozzles than comparatively heavy yarns.
  • the relevant parameters of the yarn are recorded via a thickness measurement (hairiness measurement).
  • the specific parameters of the yarn can also be detected capacitively using sensors.
  • the sensor output for detecting the parameters of the yarn is fed to an electronic control with a computer, where the specific yarn parameters relating to the air effectiveness are calculated and that the pulse length of the group-controlled relay nozzles is set as a function thereof.
  • light yarns only require a short air pulse for transport, especially at the outlet of the air inlet duct in the stretching phase, with light yarns the pulse length being only slightly different from the pulse length at the inlet of the air inlet duct.
  • the main nozzles are controlled in such a way that the start time of the yarn when the yarn is introduced into the air inlet channel is determined by sensors in conjunction with an electronic control.
  • the advantage here is that the length of the stretching phase, i.e. so the time for the stretching of the yarn is the same for both yarns. This results in substantial air savings in the groups of the relay nozzles assigned to the stretching phase, since these need only be actuated for a relatively short time.
  • a plurality of relay nozzles 4 are arranged on the reed 2, the relay nozzles 4 forming nozzle groups 5, 6, etc., which are controlled together by a line 16 from an electromagnetic valve 15, this valve 15 being an electromagnetic 2-way valve is trained.
  • This valve 15 is controlled by a control 18 via an electrical line 20, an input 19 made via a terminal being indicated only schematically.
  • the thread entry side of the air-jet weaving machine 1 is formed from a plurality of thread spools 7, 8, a thread 9, 10 being drawn off from each thread spool 7, 8 and being fed to a prewinder 11, 12.
  • the yarn is fed in pulse-controlled fashion from a rod to a main nozzle 13, 14, where it is introduced into the air inlet channel 3.
  • the main nozzles 13, 14 are also controlled with respect to their air flow by electromagnetic valves, which are also acted upon by the control 18.
  • the input of the parameter of the air effectiveness is generated electronically via corresponding sensors, such a sensor 23 being arranged in the thread guide 24.
  • the sensor signal is thus communicated to the controller 18 via the signal line 25, which uses this to form the parameter of the air effectiveness and controls the groups 5, 6 of the main nozzles 4 in accordance with the size of the parameter.
  • the width of the weave is plotted on the abscissa and the relay nozzles are also identified with group numbers I-VII, while the nozzles are identified with the numbers 1-25 on the lower side.
  • the time on the ordinate is given in milliseconds.
  • group number I of the relay nozzles is activated with a pulse length of 15 milliseconds, this group extending from relay nozzle No. I to relay nozzle No. IV.
  • a straight line 26, which forms the approximate average through the impulses of the individual groups, is approximately parallel to one of the straight lines 27 above, which applies to light yarns.
  • Fig. 3 shows an image modified from the diagram of Fig. 2; here it can be seen that the straight lines 26 ', 27' are steeper, which takes into account the increased air requirement, and it can also be seen that in the region of the stretching phase, i. H. in group numbers V-VII extensions 28, 29, 30 of the impulses of groups V-VII are carried out in order to carry and stretch the heavier yarn.
  • the parameters of the air effectiveness are calculated by recognizing the yarn behavior in the air inlet channel, here the yarn speed in the air inlet channel is measured with the aid of a light barrier and the speed can then be used to determine the pulse length set the controller 18.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
EP89906067A 1988-06-02 1989-06-01 Düsensteuerung für einen luftwebstuhl Revoked EP0372046B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE3818766A DE3818766A1 (de) 1988-06-02 1988-06-02 Duesensteuerung fuer einen luftwebstuhl
DE3818766 1988-06-02
PCT/EP1989/000617 WO1989012122A1 (en) 1988-06-02 1989-06-01 Nozzle control for an air loom

Publications (2)

Publication Number Publication Date
EP0372046A1 EP0372046A1 (de) 1990-06-13
EP0372046B1 true EP0372046B1 (de) 1995-12-27

Family

ID=6355690

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89906067A Revoked EP0372046B1 (de) 1988-06-02 1989-06-01 Düsensteuerung für einen luftwebstuhl

Country Status (5)

Country Link
US (1) US5031672A (enrdf_load_stackoverflow)
EP (1) EP0372046B1 (enrdf_load_stackoverflow)
JP (1) JPH03502946A (enrdf_load_stackoverflow)
DE (2) DE3818766A1 (enrdf_load_stackoverflow)
WO (1) WO1989012122A1 (enrdf_load_stackoverflow)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2849422B2 (ja) * 1989-12-28 1999-01-20 津田駒工業株式会社 織機の緯入れノズルの噴射圧力制御方法と、その装置
JPH0819605B2 (ja) * 1990-05-24 1996-02-28 株式会社豊田自動織機製作所 ジェットルームにおける緯入れ制御装置
US5065796A (en) * 1990-10-02 1991-11-19 Draper Corporation Loom temple control system to vary pick density
DE4131474C2 (de) * 1991-09-21 1995-01-05 Dornier Gmbh Lindauer Verfahren zum Schußfadeneintrag auf einer Luftdüsenwebmaschine
JPH06128843A (ja) * 1992-04-28 1994-05-10 Nisshinbo Ind Inc 単糸２本使い緯糸織物の製造方法及びその装置
DE19602513C1 (de) * 1996-01-25 1996-10-02 Dornier Gmbh Lindauer Verfahren zum Überwachen der Funktionstüchtigkeit elektrisch ansteuerbarer Magnetventile in Webmaschinen
DE19824613A1 (de) 1998-06-02 1999-12-09 Dornier Gmbh Lindauer Verfahren zum Überwachen des Schußfadenfreigabe- und Stoppvorganges an Vorspulgeräten für Webmaschinen
US6420552B1 (en) 1999-09-10 2002-07-16 Zymetx, Inc. Syntheses of 4-alkyl chromogenic glycosides and 7-alkyl chromogenic glycosides of N-acetylneuraminic acids
DE10028049B4 (de) * 2000-06-06 2006-06-29 Lindauer Dornier Gmbh Düsenwebmaschine mit einem Schussfadeneintragssystem
DE10224078A1 (de) * 2002-05-31 2003-12-18 Dornier Gmbh Lindauer Verfahren zum Gestreckthalten eines Schussfadens und Webmaschine zur Verfahrensdurchführung
US6945282B2 (en) 2002-06-17 2005-09-20 Flora Gendelman Method and device for forming a shed in a weaving machine
DE102005004064A1 (de) * 2005-01-21 2006-07-27 Picanol N.V. Vorrichtung zum Eintragen von Schussfäden bei einer Luftdüsenwebmaschine
CN103370462B (zh) 2010-11-25 2015-02-11 乌斯特技术股份公司 用于控制喷射织机的方法和装置
BR112013013114A2 (pt) * 2010-11-25 2016-08-16 Toyota Ind Corp método e aparelho para o controle de um tear de jato
JP5885366B2 (ja) 2011-07-15 2016-03-15 ウステル・テヒノロジーズ・アクチエンゲゼルシヤフト 付属する糸センサを持つルーム及びその操作方法
CN102719973A (zh) * 2012-06-15 2012-10-10 青岛同春机电科技有限公司 超高速喷气织机
US20160059800A1 (en) * 2014-09-03 2016-03-03 Prettl Electric Corp. Air Set Device
JP7156140B2 (ja) * 2019-04-02 2022-10-19 株式会社豊田自動織機 エアジェット織機、および、エアジェット織機の制御方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58163756A (ja) * 1982-03-19 1983-09-28 株式会社豊田自動織機製作所 流体噴射式織機における緯入れ方法
CA1201195A (en) * 1982-07-19 1986-02-25 Robert A. Soltis Bi-vertical main distributing frame connection
SE8207098D0 (sv) * 1982-12-10 1982-12-10 Iro Ab Anordning for temporer upplagring och matning av uppmetta garnlengder, foretredesvis till dysvevmaskiner
JPS59125941A (ja) * 1982-12-27 1984-07-20 津田駒工業株式会社 流体噴射式織機の流体噴射パターン制御方法
US4646791A (en) * 1983-01-13 1987-03-03 Tsudakoma Corporation Method and apparatus for inserting weft threads in multiple-color air jet looms
FR2556375B1 (fr) * 1983-12-13 1986-06-20 Saurer Diederichs Sa Dispositif d'alimentation en air comprime pour machine a tisser avec insertion pneumatique d'au moins deux fils de trame
JPS60162837A (ja) * 1984-01-27 1985-08-24 株式会社豊田自動織機製作所 流体噴射式織機における緯入れ方法
BE899671A (nl) * 1984-05-16 1984-11-16 Picanol Nv Regelbare sturing van de inslagdraad van een weefgetouw.
IT1215235B (it) * 1985-01-30 1990-01-31 Omv Off Mecc Vilminore Dell'alimentazione di filati di dispositivo di autoregolazione trama in telai di tessitura ad aria.
JPH0759774B2 (ja) * 1986-10-04 1995-06-28 津田駒工業株式会社 無杼織機のよこ入れ自動調整方法
JP2516353B2 (ja) * 1987-01-30 1996-07-24 津田駒工業株式会社 エアジエツト織機のよこ入れ制御装置

Also Published As

Publication number Publication date
DE58909549D1 (de) 1996-02-08
JPH03502946A (ja) 1991-07-04
US5031672A (en) 1991-07-16
EP0372046A1 (de) 1990-06-13
DE3818766A1 (de) 1989-12-07
WO1989012122A1 (en) 1989-12-14
DE3818766C2 (enrdf_load_stackoverflow) 1990-06-07

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