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EP0253798A2 - Métier à tisser circulaire - Google Patents

Métier à tisser circulaire Download PDF

Info

Publication number
EP0253798A2
EP0253798A2 EP87890165A EP87890165A EP0253798A2 EP 0253798 A2 EP0253798 A2 EP 0253798A2 EP 87890165 A EP87890165 A EP 87890165A EP 87890165 A EP87890165 A EP 87890165A EP 0253798 A2 EP0253798 A2 EP 0253798A2
Authority
EP
European Patent Office
Prior art keywords
rollers
frustoconical
tip
circular loom
die
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Withdrawn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
EP87890165A
Other languages
German (de)
English (en)
Other versions
EP0253798A3 (fr
Inventor
Franz Dipl.-Ing. Zacek
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.)
Lenzing AG
Original Assignee
Lenzing AG
Chemiefaser Lenzing 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 Lenzing AG, Chemiefaser Lenzing AG filed Critical Lenzing AG
Publication of EP0253798A2 publication Critical patent/EP0253798A2/fr
Publication of EP0253798A3 publication Critical patent/EP0253798A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D37/00—Circular looms

Definitions

  • a circular loom of this type in which the guide surfaces are designed to diverge from the central axis of the machine, is known from AT-B - 370.787.
  • the shooters' rollers have axes of rotation which are arranged parallel to the guide surfaces into which they are fitted.
  • the rollers themselves have convexly curved treads, so that only a point contact occurs between the rollers and the guide surfaces.
  • the invention aims to avoid these disadvantages and difficulties and has as its object to create a circular loom of the type described in which, despite the smooth running of the shooters, the load on the rollers or the guide surfaces and so that their wear is as low as possible. Furthermore, damage to the warp threads, for example warp thread tears or deformations of the warp threads, if these are made of plastic, for example, should be avoided.
  • the treads are not aligned parallel to the guide surfaces, but rather are inclined to them, it is possible to design the treads in the shape of a truncated cone and to provide a line contact between the rollers and the guide surfaces, the entire length of the line contact between the Treads of the rollers and the guide surfaces no sliding movement, but a pure rolling movement takes place. As a result, the wear of the castors can be minimized when the shooters are very quiet.
  • a circular weaving machine with frustoconical guide surfaces on which the shooters are guided by means of rollers having a frustoconical surface is known from DE-A - 33 23 141 known.
  • the guide surfaces are inclined outwards, ie they converge in the direction of the central axis of the circular loom.
  • the shooters are pressed outwards against the reed due to the centrifugal force while the machine is running, and the rollers lift off the guide surfaces.
  • the shooters are either supported on runners arranged on them on rotatable reed bars or they have additional support rollers running on the reed bars. This not only results in a greater sliding or rolling resistance for the shooters, but also a complex construction and a high noise level when the machine is in operation.
  • rollers according to the invention are characterized in that at least the rollers which are in contact with the upper guide surface have on the outside a flange projecting beyond their surface, preferably a frustoconical flange, which also has an inclined arrangement with the upper guide surface and adjoins it is in contact with the annular support surface, thereby preventing the shooter from tipping inward when the shooter is at a standstill.
  • a support ring that contacts one side surface of the upper rollers is arranged on the inside on the upper guide surface for this purpose.
  • the upper race has a longitudinal groove, the bottom of which forms the guide surface for the rollers and the side flanks of which are arranged at a distance corresponding to the thickness of an impeller and approximately parallel to the Side surfaces of the impellers are directed.
  • a roller engaging with the lower guide surface is provided on the inside with a truncated cone-shaped extension, which has a larger opening angle than the running surface of the roller, and has one on one Rotor arranged drive roller on a V-shaped profile, of which a frustoconical surface contacts the frustoconical extension and the tip of the frustoconical extension coincides with the tip of the frustoconical surface.
  • the circular loom has a drivable rotor 2 which is rotatably mounted in a machine frame 1 and which is arranged below a stationary circular-cylindrical reed 3.
  • the reed 3 is delimited by a lower and upper, in each case annular race 4, 5, along which race at least one shooter 6 is guided by means of rollers 7. Between the races 4, 5 these connecting rods 8 of the reed 3 are provided, between which the warp threads 9, 10 are passed.
  • the reed 3 concentrically surrounding thread guide members 12 are provided, which are guided by ribbons 15, which are guided over upper and lower deflection rollers 13, 14 and formed into an endless loop are formed, on each of which a thread guide eyelet 16 is attached to each strand.
  • the rotor 2 has a groove 17 (or spring) which runs in a wave-like manner over the circumference and on which driver elements 18 are guided.
  • the driver elements 18 are connected to the belts 15 by means of actuating rods 19.
  • thread tensioning devices 20 are provided for the warp threads 9, 10, which are formed by spring wires 21, which are equipped with thread eyelets 22 at their ends.
  • the races 4, 5 have guide surfaces 23 for the rollers 7 of the shooter 6, which are inclined obliquely inwards.
  • the rollers 7 of the shooter 6 are frustoconical, the axes of rotation 24 of the rollers 7, which coincide with the axis of the truncated cone, intersect the central axis 25 of the circular loom at the intersection 26.
  • the intersection 26 of the axes of rotation 24 of the rollers coincides with the intersection of the associated guide surface 23 with the central axis 25 of the circular loom, i.e. in other words, both the tip 26 of the frustoconical rollers and the tip 27 of the frustoconical guide surface lie on the central axis 25 and coincide.
  • the warp threads 9, 10 are guided through thread guide grooves 30 of the race rings 4, 5 arranged approximately transversely to the races 4, 5, so that contact of the rollers 7 with the warp threads 9, 10 is avoided.
  • the warp threads are not guided in thread guide grooves, but along the guide surfaces 23 of the races 4, 5, the warp threads 9, 10 are treated extremely gently as a result of the line contact between the rollers 7 and the race rings 4, 5 and the pure rolling movement of the rollers 7 on the guide surfaces , etc. even at high revolutions of the shooter 6 and thus high centrifugal forces.
  • a longitudinal groove 31 is formed in the upper race 5 in accordance with the embodiment shown in FIGS. 1 and 4, the groove base of which forms the guide surface 23.
  • the lower race 4 has a collar 33 on its upper part facing the reed 3, on which the lower rollers 7 of the shooter 6 come to rest when the machine is at a standstill.
  • the rollers 7 of the shooter are each provided on the outside with a truncated-cone-shaped flange 39 projecting above their running surface 29, which has an annular support surface 40 of the races 4 and 5, which is arranged at an angle to the guide surfaces 23, when stationary the machine is in contact so that the shooter 6 is held securely between the races 4, 5 even when the machine is at a standstill.
  • a support ring 41 which has a circular cross section, is mounted on the inside of the upper race 5 to hold the shooter 6 when the machine is at a standstill.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
EP87890165A 1986-07-14 1987-07-09 Métier à tisser circulaire Withdrawn EP0253798A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT1904/86 1986-07-14
AT0190486A AT385783B (de) 1986-07-14 1986-07-14 Rundwebmaschine

Publications (2)

Publication Number Publication Date
EP0253798A2 true EP0253798A2 (fr) 1988-01-20
EP0253798A3 EP0253798A3 (fr) 1990-03-07

Family

ID=3523531

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87890165A Withdrawn EP0253798A3 (fr) 1986-07-14 1987-07-09 Métier à tisser circulaire

Country Status (6)

Country Link
US (1) US4821778A (fr)
EP (1) EP0253798A3 (fr)
JP (1) JPS6328939A (fr)
CN (1) CN1003948B (fr)
AT (1) AT385783B (fr)
ZA (1) ZA874929B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101805954A (zh) * 2010-05-06 2010-08-18 黄美昌 一种塑料圆织机的梭船及运行轨道结构
CN102634915A (zh) * 2012-05-10 2012-08-15 东华大学 一种圆形导梭滚道装置

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02293440A (ja) * 1989-05-02 1990-12-04 Torii Tekkosho:Kk 円形織機のシャトル支持機構
DE4400368A1 (de) * 1994-01-10 1995-07-13 Kaendler Maschinenbau Gmbh Webschütz, insbesondere für Rundwebmaschinen
US5409044A (en) * 1994-02-25 1995-04-25 Lin; Yao-Chang Circular loom having improved shuttle retention
DE19815821C1 (de) * 1998-04-08 1999-12-02 Mayer Malimo Textilmaschf Antriebsvorrichtung für die Teilschäfte von Rundwebmaschinen
CN103015004A (zh) * 2013-01-09 2013-04-03 常州市武进恒发机械有限公司 一种塑料圆织机
CN103046210A (zh) * 2013-01-09 2013-04-17 常州市武进恒发机械有限公司 塑料圆织机
EP2829645B1 (fr) * 2013-07-24 2018-09-05 Starlinger & Co Gesellschaft m.b.H. Métier à tisser circulaire
DE112017002308A5 (de) * 2016-05-04 2019-03-14 Innotec Lightweight Engineering & Polymer Technology Gmbh Rundwebmaschine und Verfahren zur Herstellung eines hohlprofilartigen Gewebes

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2506442A (en) * 1945-05-16 1950-05-02 Cooper Henry James Means for inserting a weft into a warp in a circular loom
AU522485B2 (en) * 1978-11-29 1982-06-10 Torii Winding Machine Co. Ltd. Shuttle for circular loom
CS266317B2 (en) * 1982-07-02 1989-12-13 Franz Xaver Huemer Circular weaving machine
AT375410B (de) * 1982-11-11 1984-08-10 Chemiefaser Lenzing Ag Rundwebmaschine
CH663227A5 (de) * 1984-06-08 1987-11-30 Huemer Franz Xaver Rundwebmaschine.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101805954A (zh) * 2010-05-06 2010-08-18 黄美昌 一种塑料圆织机的梭船及运行轨道结构
CN101805954B (zh) * 2010-05-06 2012-04-18 黄美昌 一种塑料圆织机的梭船及运行轨道结构
CN102634915A (zh) * 2012-05-10 2012-08-15 东华大学 一种圆形导梭滚道装置

Also Published As

Publication number Publication date
US4821778A (en) 1989-04-18
ATA190486A (de) 1987-10-15
JPS6328939A (ja) 1988-02-06
AT385783B (de) 1988-05-10
CN1003948B (zh) 1989-04-19
EP0253798A3 (fr) 1990-03-07
CN87104842A (zh) 1988-01-27
ZA874929B (en) 1988-03-30

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Inventor name: ZACEK, FRANZ, DIPL.-ING.