EP0340528A1 - Schwenkbare Hauptdüse für Webmaschinen - Google Patents

Schwenkbare Hauptdüse für Webmaschinen Download PDF

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Publication number
EP0340528A1
EP0340528A1 EP89106983A EP89106983A EP0340528A1 EP 0340528 A1 EP0340528 A1 EP 0340528A1 EP 89106983 A EP89106983 A EP 89106983A EP 89106983 A EP89106983 A EP 89106983A EP 0340528 A1 EP0340528 A1 EP 0340528A1
Authority
EP
European Patent Office
Prior art keywords
main nozzle
swiveling
resilient
nozzle according
nozzle
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Withdrawn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
EP89106983A
Other languages
German (de)
English (en)
French (fr)
Inventor
Horst Dipl.-Ing. Häussler (FH)
Othmar Oppl
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 EP0340528A1 publication Critical patent/EP0340528A1/de
Withdrawn legal-status Critical Current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
    • D03D47/3006—Construction of the nozzles
    • D03D47/3013—Main 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
    • D03D47/28—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
    • D03D47/3046—Weft yarn selection

Definitions

  • the invention relates to a pivotable main nozzle for weaving machines with restoring elements for pivoting the main nozzle into a basic position.
  • Such a pivotable main nozzle is already known from DE-OS 30 14 776.
  • the known main nozzle is pivotally mounted in two independent degrees of freedom, namely that the rear part of the main nozzle is pivotably mounted both in the vertical direction and in the horizontal direction.
  • Another disadvantage of this known main nozzle is that the guide curves for the pivoting of this main nozzle are predetermined by the pivot bearing itself. This has the disadvantage that the swivel bearing is subject to wear, particularly during longer operating times, and that the entire swivel bearing then has to be replaced, which is associated with relatively great effort.
  • the present invention is therefore based on the object to develop a pivotable main nozzle of the type mentioned so that the Building easier and their operation is safer.
  • the invention provides that the main nozzle is supported against the sley via an elastically resilient element.
  • the essence of the invention is that the main nozzle is elastically supported in a simple manner with respect to the reed.
  • the main advantage is that the restoring force of this bearing element is used to produce a defined impact position (weft position).
  • the return element is connected to the rear part of the main nozzle, i.e. there is a rear support between the main nozzle and the sley.
  • this elastic return element is arranged approximately in the middle of the main nozzle.
  • this elastic restoring element is arranged in the center of mass seen over the length of the main nozzle.
  • a simple leaf spring is provided, which is seated at one end on the sley and at the other end on the main nozzle.
  • the leaf spring can therefore be used as a support at various points on the main nozzle, the three options described above being preferred.
  • This leaf spring has a preferred direction.
  • This leaf spring is torsionally elastic in one desired direction, but rigid in the other undesired direction, i.e. in the direction in which the main nozzle should not be deflected.
  • the leaf spring can be designed as a straight spring element or as a U-shaped spring element or as an angled spring element.
  • the third embodiment is the combination of rubber, rubber or other elastic elements with metal elements in question, that is to say rubber-metal elements, wherein molded rubber parts or other elastic parts are introduced into the metal elements.
  • the advantage of the latter elements is that they are relatively inexpensive to manufacture and still have a preferred direction of reset with a long service life.
  • the nozzle is guided in the vicinity of its mouth in the region of a guideway, wherein the guideway can have different shapes.
  • main nozzle or the main nozzle bundle is to be moved in a correspondingly profiled guideway, it is a prerequisite that the drive is also designed accordingly.
  • the drive consists of two mutually perpendicular pneumatic cylinders, the displaceable part of the piston abutting the pivotable part of the main nozzle (main nozzle bundle) and correspondingly displacing the main nozzle bundle by exposure to air.
  • two air cylinders acting perpendicular to one another are expediently used.
  • the leaf bar 2 is shown from a sley 1, to which a nozzle holder 3 is fastened via fastening means (not shown in more detail), on the rear end of which a spiral spring 4 designed as an elastic element is attached by means of a screw 6.
  • the spiral spring 4 consists of a simple spiral spring, one end of which is fastened to the rear end of the nozzle holder 3 by means of the screws 6 and the other end of which is fastened to the housing 7 of the main nozzle 5 via a clamping nut 18.
  • the main nozzle 5 itself consists of the housing 7 with nozzle cones 9 arranged on the rear side, as well as air connections 8 attached to the side.
  • a plurality of nozzle tubes 10 extend to the front, which are combined as a bundle and are combined in their front area by a socket 11 (see FIGS. 1 and 5 to 8).
  • the socket 11 is slidably guided in the region of a guide recess 20 in a guide element 12, the guide element 12 being fastened with its lower end on the nozzle holder 3 as a rectangular plastic part.
  • a pneumatic cylinder 15 is attached to the guide element 12, the piston 16 of which is supported on the underside of the socket 11.
  • the pneumatic cylinder 15 is supplied with control air via an air connection 17.
  • the piston 16 is held in its retracted rest position by means of a spring arranged in the pneumatic cylinder 15 and is extended against the spring force when exposed to air via the air connection 17 so that the nozzle orifices 19 of the main nozzle are moved in the adjustment direction 13.
  • the weft thread can thus be inserted into the shed via the nozzle mouth 19 with high precision, specifically into the air duct 21 arranged there, only reed rods 14 being indicated in FIG. 1.
  • FIG. 2 shows that a spiral spring 4a can be bent in a U-shape, while in FIG. 3 a spiral spring can be bent at right angles.
  • spiral spring 4 be designed as a leg spring.
  • spiral spring 4 is formed by an elastic element, e.g. a plastic, rubber or rubber block can be replaced, which also provides the required restoring force against the adjustment direction 13.
  • an elastic element e.g. a plastic, rubber or rubber block
  • spiral spring 4 can be attached to the center of gravity of the main nozzle in order here too to avoid harmful vibrations.
  • This center of gravity would be short at the outlet of the nozzle tubes 10 from the housing 7.
  • FIG. 4 shows the rear view of the main nozzle 5, the same parts being provided with the same reference numbers.
  • FIG. 5 shows a plan view of the holder 11 with a guide recess 20, it being recognized that the holder 11 can be moved in the adjustment directions 13 in the region of the guide recess 20.
  • FIG. 6 shows that the guide recess 20a can also be arranged obliquely, so that the respective nozzle mouth 19 can be brought into opposite position to the air duct 21 on precisely defined curves which are defined by the guide recess 20a and the socket 11.
  • FIG. 7 shows a horizontal adjustment direction 13 and FIG. 8 shows that the holder 11 can also be adjusted in the region of an arcuate guide recess 20.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
EP89106983A 1988-05-04 1989-04-19 Schwenkbare Hauptdüse für Webmaschinen Withdrawn EP0340528A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3815088 1988-05-04
DE3815088A DE3815088C1 (enrdf_load_stackoverflow) 1988-05-04 1988-05-04

Publications (1)

Publication Number Publication Date
EP0340528A1 true EP0340528A1 (de) 1989-11-08

Family

ID=6353549

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89106983A Withdrawn EP0340528A1 (de) 1988-05-04 1989-04-19 Schwenkbare Hauptdüse für Webmaschinen

Country Status (4)

Country Link
US (1) US4962795A (enrdf_load_stackoverflow)
EP (1) EP0340528A1 (enrdf_load_stackoverflow)
JP (1) JPH0261134A (enrdf_load_stackoverflow)
DE (1) DE3815088C1 (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1012620A3 (nl) * 1999-04-20 2001-01-09 Picanol Nv Inrichting en werkwijze voor het inbrengen van een inslagdraad bij een weefmachine.
EP1279757A1 (de) 2001-07-23 2003-01-29 Sulzer Textil Ag Webladenvorichtung

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29721042U1 (de) * 1997-11-28 1998-02-05 Dornier Gmbh Lindauer Webmaschine, insbesondere Luftdüsenwebmaschine
US6799609B2 (en) 2001-07-23 2004-10-05 Sultex Ag Sley apparatus
KR100859994B1 (ko) * 2007-02-05 2008-09-25 주식회사세일정밀 에어제트룸의 위사급사장치
WO2015072035A1 (ja) 2013-11-18 2015-05-21 川崎重工業株式会社 エンジンの過給機
CN103757803B (zh) * 2014-01-28 2016-03-23 无锡精业丝普兰科技股份有限公司 主喷管座及主喷嘴结构
BE1025206B1 (nl) * 2017-05-11 2018-12-12 Picanol Nv Monteerinrichting voor een mondstukopstelling en mondstukopstelling

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2047286A (en) * 1979-04-25 1980-11-26 Rueti Te Strake Bv Jet looms
DE3204007A1 (de) * 1982-02-05 1983-08-11 Guenne Webmaschf Gmbh Vorrichtung und verfahren zum einblasen verschiedenfarbiger schussfaeden bei luftduesen-webmaschinen
EP0120429A1 (en) * 1983-03-25 1984-10-03 ROJ ELECTROTEX S.p.A. Weft yarn presenting device for looms
EP0203256A1 (de) * 1985-05-25 1986-12-03 Günne Webmaschinenfabrik GmbH & Co. KG Schusseintragungsvorrichtung für Webmaschinen mit schwenkbaren Blasdüsen und Verfahren zum pneumatischen Eintragen aufeinanderfolgender Schusslängen

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2497240A1 (fr) * 1980-12-30 1982-07-02 Saurer Diederichs Sa Dispositif a buse mobile pour insertion pneumatique de la trame sur une machine a tisser sans navette
JPS57133248A (en) * 1981-02-09 1982-08-17 Tsudakoma Ind Co Ltd Method and apparatus for moving plural nozzles in fluid jet type loom
US4644980A (en) * 1984-12-28 1987-02-24 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Device for inserting weft yarn in a fluid jet loom
JPS641655A (en) * 1987-03-03 1989-01-06 Toshiba Corp Car warming control device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2047286A (en) * 1979-04-25 1980-11-26 Rueti Te Strake Bv Jet looms
DE3204007A1 (de) * 1982-02-05 1983-08-11 Guenne Webmaschf Gmbh Vorrichtung und verfahren zum einblasen verschiedenfarbiger schussfaeden bei luftduesen-webmaschinen
EP0120429A1 (en) * 1983-03-25 1984-10-03 ROJ ELECTROTEX S.p.A. Weft yarn presenting device for looms
EP0203256A1 (de) * 1985-05-25 1986-12-03 Günne Webmaschinenfabrik GmbH & Co. KG Schusseintragungsvorrichtung für Webmaschinen mit schwenkbaren Blasdüsen und Verfahren zum pneumatischen Eintragen aufeinanderfolgender Schusslängen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1012620A3 (nl) * 1999-04-20 2001-01-09 Picanol Nv Inrichting en werkwijze voor het inbrengen van een inslagdraad bij een weefmachine.
EP1279757A1 (de) 2001-07-23 2003-01-29 Sulzer Textil Ag Webladenvorichtung

Also Published As

Publication number Publication date
JPH0261134A (ja) 1990-03-01
DE3815088C1 (enrdf_load_stackoverflow) 1989-12-07
US4962795A (en) 1990-10-16

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