EP1072706A2 - Dispositif de surveillance pour métiers à tisser avec des tuyaux sous pression flexibles - Google Patents

Dispositif de surveillance pour métiers à tisser avec des tuyaux sous pression flexibles Download PDF

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Publication number
EP1072706A2
EP1072706A2 EP00112138A EP00112138A EP1072706A2 EP 1072706 A2 EP1072706 A2 EP 1072706A2 EP 00112138 A EP00112138 A EP 00112138A EP 00112138 A EP00112138 A EP 00112138A EP 1072706 A2 EP1072706 A2 EP 1072706A2
Authority
EP
European Patent Office
Prior art keywords
conductors
pressure
current
weaving machine
weft insertion
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.)
Withdrawn
Application number
EP00112138A
Other languages
German (de)
English (en)
Other versions
EP1072706A3 (fr
Inventor
Peter D. Dornier
Herbert Müller
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
Application filed by Lindauer Dornier GmbH filed Critical Lindauer Dornier GmbH
Publication of EP1072706A2 publication Critical patent/EP1072706A2/fr
Publication of EP1072706A3 publication Critical patent/EP1072706A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D51/00—Driving, starting, or stopping arrangements; Automatic stop motions
    • D03D51/18—Automatic stop motions
    • D03D51/44—Automatic stop motions acting on defective operation of loom mechanisms
    • 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

Definitions

  • the invention relates to a monitoring device for weaving machines with flexible Pressure hoses in a weft insertion system, the pressure hoses depending on Arrangement of the solenoid valves either on the one hand at least one pressure source and one or connect several electrically controllable solenoid valves with each other and / or on the other hand the pressure hoses the valves and the means causing the weft insertion connect with each other.
  • the means causing the weft thread insertion are too a structural unit summarized so-called main nozzles for the insertion of the weft into a shed and the so-called auxiliary blowing or relay nozzles that the Weft insertion of the main nozzles across the weaving width using a pneumatic fluid support.
  • the pressure hoses are subject to a wide variety of stresses during the weaving process, such as bending stresses at the pressure medium connections at the ends and pressure stresses when the pressure in the hoses is built up and released during the weaving operations.
  • the stresses on the pressure hoses mentioned as examples lead to defects in the hoses, starting from tearing off at the connection points to leakage points over the length of the pressure hose.
  • the resulting pneumatic fluid lowers the output of the main and / or auxiliary blowing nozzles.
  • Such a reduction in performance is currently not captured by technical means.
  • the drop in performance in the weft insertion system inevitably leads to disturbances in the weft insertion, which are not perceived by the operator of the weaving machine immediately after it arises. Rather, there is a risk that the drop in performance in weft insertion will persist for some time. During this time, incorrect weft thread entries can occur, which occur as permanent fabric defects in the finished goods.
  • the object of the invention is to permanently monitor the pressure hoses Functionality, especially in the weft insertion system of a weaving machine with fluidic weft insertion included pressure hoses to ensure a display any malfunction and trigger a web stop initiate.
  • the electrical conductor forms a closed conductor loop within the wall of the pressure hose. Together with a voice coil, the closed conductor loop forms an oscillating circuit with a predetermined frequency, which is measured by means of known means. A detected change in the frequency during the weaving operation will interpret the known means as a significant feature with regard to the functionality of the pressure hose in question in the weft insertion system of the weaving machine and will trigger a corresponding electrical signal. This signal can be used to manually interrupt the weaving process or it can be used to automatically interrupt the weaving process.
  • FIG. 1 shows a weft insertion system 1 of an air jet weaving machine, consisting of at least one pneumatic pressure source 2, with which the electrically controllable solenoid valves (3) are connected to the pressure source 2 via pressure lines 2a, consisting of means for inserting a weft thread 6 into a shed 7 , which consist of a main nozzle 4 and a plurality of relay nozzles 5, flexible pressure hoses 8 establishing the fluidic connection between a first solenoid valve 3 and the main nozzle 4, between further solenoid valves 3 and the relay nozzles 5 and between a solenoid valve and a stretching nozzle 12.
  • the solenoid valves 3 have valve outputs 11; the main nozzle 4 and the relay nozzles 5 have hose connections 10.
  • first Signal lines 3a connected to an electronic weaving machine control 9.
  • Parallel second signal lines 3b running to the first signal lines 3a are isolated from each other on the one hand at the valve outputs 11 of the solenoid valve 3 and on the other hand the weaving machine control 9.
  • the conductors 8a, 8a ' in contrast to FIG. 6, form a closed conductor loop 14, ie the conductors 8a and 8a' are connected to one another in the end regions of the pressure tubes 8 by means of the loop 14.
  • a voice coil 15 arranged at the outputs 11 of the solenoid valves 3 is penetrated by the end region of the pressure hose and, together with the closed conductor loop 14, forms an oscillating circuit with a predetermined frequency.
  • the power consumption of the resonant circuit is monitored using suitable means. A change in the power consumption is interpreted by the measuring means as a significant change in the functionality of the pressure hose in question. The interpretation is represented by a corresponding signal via the weaving machine control 9 in order to indicate to the operator of the weaving machine the suitability of interrupting the weaving process. The signal shown or generated can also be used to automatically interrupt the weaving process.
  • the necessary circuitry precautions are known.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
EP00112138A 1999-07-30 2000-06-06 Dispositif de surveillance pour métiers à tisser avec des tuyaux sous pression flexibles Withdrawn EP1072706A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19936071 1999-07-30
DE19936071A DE19936071C1 (de) 1999-07-30 1999-07-30 Überwachungseinrichtung für Webmaschinen mit flexiblen Druckschläuchen

Publications (2)

Publication Number Publication Date
EP1072706A2 true EP1072706A2 (fr) 2001-01-31
EP1072706A3 EP1072706A3 (fr) 2003-08-27

Family

ID=7916734

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00112138A Withdrawn EP1072706A3 (fr) 1999-07-30 2000-06-06 Dispositif de surveillance pour métiers à tisser avec des tuyaux sous pression flexibles

Country Status (4)

Country Link
US (1) US6186191B1 (fr)
EP (1) EP1072706A3 (fr)
JP (1) JP2001064851A (fr)
DE (1) DE19936071C1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060045749A1 (en) * 2004-08-30 2006-03-02 Powermate Corporation Air compressor utilizing an electronic control system
US7481627B2 (en) * 2004-08-30 2009-01-27 Mat Industries Llc Air compressor tools that communicate with an air compressor
US20060125493A1 (en) * 2004-12-13 2006-06-15 Materials Modification, Inc. Corrosion sensor and method of monitoring corrosion
DE102012208158B3 (de) * 2012-05-15 2013-09-05 Lindauer Dornier Gmbh Luftdüsenwebmaschine mit einer Vorrichtung zur Druckluftversorgung
DE202016100111U1 (de) * 2016-01-13 2017-04-20 J. Schmalz Gmbh Anlage zur Handhabung von Werkstücken
CN109313154B (zh) 2016-08-03 2022-01-18 惠普发展公司，有限责任合伙企业 设置在层中的导线

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0185650A1 (fr) * 1984-12-21 1986-06-25 VOEST-ALPINE Aktiengesellschaft Tuyau flexible, en particulier tuyau flexible sous pression hydraulique
DE4136190A1 (de) * 1991-11-02 1993-05-06 Ulrich Dipl.-Ing. Ballhausen Verfahren zur erkennung und diagnose von fehlern im fluidsystem von fluidwebmaschinen, insbesondere im pneumatischen system von luftduesenwebmaschinen, sowie vorrichtung zur durchfuehrung der verfahren
WO1995031665A1 (fr) * 1994-05-12 1995-11-23 Btr Plc Tuyau dote d'un indicateur d'usure
DE19723001A1 (de) * 1997-06-02 1998-12-03 Alexander Jeschke Feststellen eines Knickes in einem Schlauch

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US646886A (en) * 1899-11-09 1900-04-03 Benjamin L Stowe Electric signaling device for hydraulic hose.
US3845657A (en) * 1972-02-04 1974-11-05 Westinghouse Electric Corp Surveillance system including means for detecting impending failure in high pressure, high temperature fluid conducting pipes
DE3843683A1 (de) * 1988-12-23 1990-06-28 Dornier Gmbh Lindauer Schussfadenwaechter fuer luftwebmaschinen
USH1057H (en) * 1990-05-31 1992-05-05 Conductive hose
US5295515A (en) * 1991-02-25 1994-03-22 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Apparatus for controlling weft insertion in jet loom
JP2898773B2 (ja) * 1991-03-08 1999-06-02 津田駒工業株式会社 ジェットルームの緯入れ制御装置
NL1004173C2 (nl) * 1996-10-02 1998-04-06 Te Strake Bv Weefinrichting.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0185650A1 (fr) * 1984-12-21 1986-06-25 VOEST-ALPINE Aktiengesellschaft Tuyau flexible, en particulier tuyau flexible sous pression hydraulique
DE4136190A1 (de) * 1991-11-02 1993-05-06 Ulrich Dipl.-Ing. Ballhausen Verfahren zur erkennung und diagnose von fehlern im fluidsystem von fluidwebmaschinen, insbesondere im pneumatischen system von luftduesenwebmaschinen, sowie vorrichtung zur durchfuehrung der verfahren
WO1995031665A1 (fr) * 1994-05-12 1995-11-23 Btr Plc Tuyau dote d'un indicateur d'usure
DE19723001A1 (de) * 1997-06-02 1998-12-03 Alexander Jeschke Feststellen eines Knickes in einem Schlauch

Also Published As

Publication number Publication date
US6186191B1 (en) 2001-02-13
DE19936071C1 (de) 2000-09-07
JP2001064851A (ja) 2001-03-13
EP1072706A3 (fr) 2003-08-27

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