EP0109386B1 - Circular loom - Google Patents

Circular loom Download PDF

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Publication number
EP0109386B1
EP0109386B1 EP83890200A EP83890200A EP0109386B1 EP 0109386 B1 EP0109386 B1 EP 0109386B1 EP 83890200 A EP83890200 A EP 83890200A EP 83890200 A EP83890200 A EP 83890200A EP 0109386 B1 EP0109386 B1 EP 0109386B1
Authority
EP
European Patent Office
Prior art keywords
roller
shooter
running
contact
shuttle
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
Application number
EP83890200A
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German (de)
French (fr)
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EP0109386A1 (en
Inventor
Johann Schönberger
Johann Bloo
Bruno Mistlberger
Johann Gehmaier
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
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Filing date
Publication date
Application filed by Lenzing AG filed Critical Lenzing AG
Publication of EP0109386A1 publication Critical patent/EP0109386A1/en
Application granted granted Critical
Publication of EP0109386B1 publication Critical patent/EP0109386B1/en
Expired 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

  • the invention relates to a circular loom with a machine frame which has an upper and lower race, between which a reed and at least one shooter are arranged, which are guided in the race by means of rollers arranged at its front and rear ends and by means of a driver roller arranged on a rotor is drivable, wherein the roller in contact with the driving roller has a truncated cone-shaped extension which extends from the race towards its center and tapers in this direction and with which the driving roller comes into contact.
  • a circular weaving machine of this type is described in the older prior published European patent application 0080453.
  • the driving roller of this circular weaving machine which is rotatably mounted on the rotor, comes into contact with the rear roller in the direction of movement of the shooter, which rolls directly on a lower race, whereby the shooter is pushed along the race rings.
  • This type of drive allows the shooter to be pushed out of the guide rails, particularly when the machine starts up, which can lead to malfunctions and, subsequently, to production interruptions or production downtimes.
  • the invention aims to improve a circular loom of the type described in the introduction and has the task of reducing the susceptibility of the shooter drive to failure.
  • the driver roller also has a truncated cone-shaped jacket part that comes into contact with the shooter's roller during operation is in contact with a roller arranged at the front end of the shooter and is provided between the rollers arranged at the front and rear ends of the shooter.
  • a circular weaving machine which has a shooter who is provided with a roller at its front end, which roller is in contact with a driving roller moving in the shuttle web during operation.
  • This roller serves to drive and not to support the shooter, so that the known circular loom is not suitable for high weaving performance due to the friction occurring between the shooter and the warp threads. In particular, difficulties are to be expected when starting up this known machine.
  • FIG. 1 showing an overall view of the machine, partly in section. 1 shows a section of FIG. 1 on a larger scale
  • FIG. 3 shows a section along line 111-111 of FIG. 4
  • FIG. 4 shows a view in the direction of arrow IV of FIGS. 2 and 3.
  • the circular loom has a rotor 2 which is rotatably mounted and drivable in a machine frame 1 and which is arranged below a fixed reed 3.
  • the reed is delimited by an upper and lower race 4, 5, along which race at least one shooter 6 is guided by means of rollers 7, 7 '.
  • a shaft is arranged in a circle arranged concentrically with the rotor 2, the shaft having a wavy groove 10 machined on the outside of the rotor 2 and engaging driver elements 11 designed as sliding blocks.
  • the driver elements 11 can have rotatable rollers 11 ′ which are inserted into the groove 10.
  • Each of the driver elements 11 carries a plurality of flexible bands 12 or cords, each of which is guided over an upper 13 and lower deflection roller 14 rotatably mounted on the machine frame 1.
  • each driver element 11 is guided along two parallel and vertically arranged guide rods 15 which pass through the driver element 11 and are rigidly fastened to the machine frame 1.
  • Thread guide members 16 for example eyelets, are attached to each band 12 at a distance from one another.
  • the shooter 6 has a support body 17 which carries the weft bobbin 18.
  • the rollers 7, 7 ' are guided on the upper and lower races 4, 5 of the reed 3 each having a semicircular arc profile.
  • the counter profile of the roller is adapted to the preferred semicircular arc profile of the races 4, 5 and is approximately quarter-circle-shaped, extending beyond the apex of the race profile, so that the rollers 7 transmit both the centrifugal force and supporting forces to the races 4, 5 and the shooter tipping out 6 is avoided at a standstill.
  • the shooter 6 is driven by means of a driver roller 19 which is freely rotatably mounted on the rotor 2.
  • the driver roller 19 is arranged between the rollers 7, 7 'arranged on the front and rear ends of the shooter 6 and arrives during operation, that is to say with the shooter 6 rotating , In contact with a arranged at the front end of the shooter 6 roller 7, which rolls on the lower race 5.
  • the shooter 6 is, so to speak, by means of a front wheel drive along the races 4, 5 pulled, which significantly improves its smoothness.
  • the roller 7 coming into contact with the driving roller 19 has a frustoconical extension 20 which extends from the race 5 towards its center and tapers in this direction, with which the driving roller 19 comes into contact with a likewise frustoconical jacket part 21 provided on it .
  • the axis of rotation 22 of the driver roller 19 intersects with the axis 23 of the roller and with the extension of the line of contact 24 of the driver roller 19 with the roller 7 at a point 25, whereby the life of the driver roller 19 and the roller 7 coming into contact with it increases is.
  • a further, freely rotatable roller 28 on the rotor i. H. on a support body 29 mounted on the rotor, the distance 27 being dimensioned so large that the intermediate roller 7 of the shooter 6 has play at least with one of the rollers 19 and 28.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)

Description

Die Erfindung betrifft eine Rundwebmaschine mit einem Maschinengestell, das einen oberen und unteren Laufring aufweist, zwischen welchen ein Riet und mindestens ein Schützen angeordnet sind, der in den Laufringen mittels an seinem vorderen und hinteren Ende angeordneter Laufrollen geführt und mittels einer an einem Rotor angeordneten Mitnehmerrolle antreibbar ist, wobei die mit der Mitnehmerrolle in Kontakt stehende Laufrolle einen sich vom Laufring in Richtung zu dessen Zentrum erstreckenden und in dieser Richtung verjüngenden kegelstumpfförmigen Fortsatz aufweist, mit dem die Mitnehmerrolle in Kontakt glangt.The invention relates to a circular loom with a machine frame which has an upper and lower race, between which a reed and at least one shooter are arranged, which are guided in the race by means of rollers arranged at its front and rear ends and by means of a driver roller arranged on a rotor is drivable, wherein the roller in contact with the driving roller has a truncated cone-shaped extension which extends from the race towards its center and tapers in this direction and with which the driving roller comes into contact.

Eine Rundwebmaschine dieser Art ist in der prioritätsälteren nachveröffentlichten europäischen Patentanmeldung 0080453 beschrieben. Die am Rotor drehbar gelagerte Mitnehmerrolle dieser Rundwebmaschine gelangt mit der in Bewegungsrichtung des Schützen hinteren Laufrolle, die an einem unteren Laufring direkt rollt, in Kontakt, wodurch der Schützen entlang der Laufringe geschoben wird. Durch diese Antriebsart kann der Schützen, insbesondere beim Anlaufen der Maschine, aus den Führungsschienen gedrückt werden, wodurch es zu Störungen und in weiterer Folge zu Produktionsunterbrechungen bzw. Produktionsausfällen kommen kann.A circular weaving machine of this type is described in the older prior published European patent application 0080453. The driving roller of this circular weaving machine, which is rotatably mounted on the rotor, comes into contact with the rear roller in the direction of movement of the shooter, which rolls directly on a lower race, whereby the shooter is pushed along the race rings. This type of drive allows the shooter to be pushed out of the guide rails, particularly when the machine starts up, which can lead to malfunctions and, subsequently, to production interruptions or production downtimes.

Die Erfindung bezweckt eine Verbesserung einer Rundwebmaschine der eingangs beschriebenen Art und stellt sich die Aufgabe, die Störanfälligkeit des Schützenantriebes herabzusetzen.The invention aims to improve a circular loom of the type described in the introduction and has the task of reducing the susceptibility of the shooter drive to failure.

Diese Aufgabe wird erfindungsgemäss durch die Kombination der im Patentanspruch enthaltenen Merkmale gelöst, wobei als neu gegenüber der EP-A-0080453 die Merkmale anzusehen sind, dass die Mitnehmerrolle ebenfalls einen kegelstumpfförmigen, mit der Laufrolle des Schützen in Kontakt gelangenden Mantelteil aufweist, während des Betriebes mit einer am vorderen Ende des Schützen angeordneten Laufrolle in Kontakt steht und zwischen den am vorderen und hinteren Ende des Schützen angeordneten Laufrollen vorgesehen ist.This object is achieved according to the invention by the combination of the features contained in the patent claim, whereby the features that are new compared to EP-A-0080453 are that the driver roller also has a truncated cone-shaped jacket part that comes into contact with the shooter's roller during operation is in contact with a roller arranged at the front end of the shooter and is provided between the rollers arranged at the front and rear ends of the shooter.

Durch diese «Vorderrad»-Antriebsart wird der Schützen entlang der Laufringe gezogen, wodurch er nicht aus den Laufringen gedrückt wird und somit ruhiger läuft, insbesondere beim Anlaufen der Maschine.With this “front wheel” drive type, the shooter is pulled along the races, which means that he is not pushed out of the races and therefore runs more smoothly, especially when the machine starts up.

Aus der CH-A-277617 ist eine Rundwebmaschine bekannt, die einen Schützen aufweist, der an seinem vorderen Ende mit einer Rolle versehen ist, welche Rolle während des Betriebes mit einer in der Schützenbahn sich bewegenden Mitnehmerrolle in Kontakt steht. Diese Rolle dient zum Antrieb und nicht zur Abstützung des Schützen, so dass die bekannte Rundwebmaschine für hohe Webleistungen infolge zwischen dem Schützen und den Kettfäden entstehender Reibung nicht geeignet ist. Insbesondere sind beim Anlaufen dieser bekannten Maschine Schwierigkeiten zu erwarten.From CH-A-277617 a circular weaving machine is known which has a shooter who is provided with a roller at its front end, which roller is in contact with a driving roller moving in the shuttle web during operation. This roller serves to drive and not to support the shooter, so that the known circular loom is not suitable for high weaving performance due to the friction occurring between the shooter and the warp threads. In particular, difficulties are to be expected when starting up this known machine.

Die Erfindung ist nachfolgend anhand eines Ausführungsbeispieles näher erläutert, wobei Fig. eine Gesamtansicht der Maschine teilweise im Schnitt zeigt. Fig. zeigt einen Ausschnitt der Fig.1 in grösserem Massstab, Fig.3 einen Schnitt gemäss der Linie 111-111 der Fig. und Fig. 4 eine Ansicht in Richtung des Pfeiles IV der Fig. 2 bzw. 3.The invention is explained in more detail below on the basis of an exemplary embodiment, FIG. 1 showing an overall view of the machine, partly in section. 1 shows a section of FIG. 1 on a larger scale, FIG. 3 shows a section along line 111-111 of FIG. 4, and FIG. 4 shows a view in the direction of arrow IV of FIGS. 2 and 3.

Die Rundwebmaschine weist einen in einem Maschinengestell 1 drehbar gelagerten und antreibbaren Rotor 2 auf, der unterhalb eines ortsfesten Rietes 3 angeordnet ist. Das Riet wird von einem oberen und unteren Laufring 4, 5 begrenzt, entlang welcher Laufringe mindestens ein Schützen 6 mittels Laufrollen 7, 7' geführt ist.The circular loom has a rotor 2 which is rotatably mounted and drivable in a machine frame 1 and which is arranged below a fixed reed 3. The reed is delimited by an upper and lower race 4, 5, along which race at least one shooter 6 is guided by means of rollers 7, 7 '.

Zur Bildung eines Fachs 8 durch die Kettfäden 9 ist in einem konzentrisch zum Rotor 2 angeordneten Kreis eine Schäftung angeordnet, welche Schäftung eine an der Aussenseite des Rotors 2 eingearbeitete wellenförmige Nut 10 und in die Nut eingreifende, als Gleitsteine ausgebildete Mitnehmerelemente 11 aufweist. Um die Reibung zwischen den Mitnehmerelementen 11 und dem Rotor auf ein Minimum zu reduzieren, können die Mitnehmerelemente 11 drehbare Rollen 11' aufweisen, die in die Nut 10 eingesetzt sind.To form a compartment 8 through the warp threads 9, a shaft is arranged in a circle arranged concentrically with the rotor 2, the shaft having a wavy groove 10 machined on the outside of the rotor 2 and engaging driver elements 11 designed as sliding blocks. In order to reduce the friction between the driver elements 11 and the rotor to a minimum, the driver elements 11 can have rotatable rollers 11 ′ which are inserted into the groove 10.

Jedes der Mitnehmerelemente 11 trägt eine Mehrzahl flexibler Bänder 12 bzw. Schnüre, die jeweils über eine am Maschinengestell 1 drehbar gelagerte obere 13 und untere Umlenkrolle 14 geführt sind. Jedes Mitnehmerelement 11 ist zwecks genauer vertikaler Führung entlang von zwei parallel und vertikal angeordneten, das Mitnehmerelement 11 durchsetzenden Führungsstangen 15, die starr am Maschinengestell 1 befestigt sind, geführt.Each of the driver elements 11 carries a plurality of flexible bands 12 or cords, each of which is guided over an upper 13 and lower deflection roller 14 rotatably mounted on the machine frame 1. For the purpose of precise vertical guidance, each driver element 11 is guided along two parallel and vertically arranged guide rods 15 which pass through the driver element 11 and are rigidly fastened to the machine frame 1.

An jedem Band 12 sind im Abstand voneinander angeordnete Fadenführungsorgane 16, beispielsweise Ösen, befestigt.Thread guide members 16, for example eyelets, are attached to each band 12 at a distance from one another.

Der Schützen 6 weist einen Stützkörper 17 auf, der die Schussfadenspule 18 trägt. Die Laufrollen 7, 7' sind am oberen und unteren, jeweils ein Halbkreisbogenprofil aufweisenden Laufring 4, 5 des Rietes 3 geführt. Das Gegenprofil der Laufrolle ist dem vorzugsweisen Halbkreisbogenprofil der Laufringe 4, 5 angepasst und etwa viertelkreisbogenförmig, sich über den Scheitel des Laufringprofiles hinauserstreckend ausgeführt, so dass die Laufrollen 7 sowohl die Fliehkraft als auch Stützkräfte auf die Laufringe 4, 5 übertragen und ein Auskippen des Schützen 6 im Stillstand vermieden wird. Andere Ausbildungsformen des Profiles der Laufringe und des Gegenprofiles der Laufrollen des Schützen, die demselben Zweck dienlich sind, z. B. vieleckige oder elliptische Formen, sind gleichfalls möglich.The shooter 6 has a support body 17 which carries the weft bobbin 18. The rollers 7, 7 'are guided on the upper and lower races 4, 5 of the reed 3 each having a semicircular arc profile. The counter profile of the roller is adapted to the preferred semicircular arc profile of the races 4, 5 and is approximately quarter-circle-shaped, extending beyond the apex of the race profile, so that the rollers 7 transmit both the centrifugal force and supporting forces to the races 4, 5 and the shooter tipping out 6 is avoided at a standstill. Other forms of training of the profile of the races and the counter profile of the shooters' rollers, which serve the same purpose, for. B. polygonal or elliptical shapes are also possible.

Der Antrieb des Schützen 6 erfolgt mittels einer am Rotor 2 frei drehbar befestigten Mitnehmerrolle 19. Die Mitnehmerrolle 19 ist zwischen den am vorderen und am hinteren Ende des Schützen 6 angeordneten Laufrollen 7, 7' angeordnet und gelangt während des Betriebes, also bei umlaufendem Schützen 6, mit einer am vorderen Ende des Schützen 6 angeordneten Laufrolle 7, die am unteren Laufring 5 rollt, in Kontakt. Durch diese Massnahme wird der Schützen 6 sozusagen mittels eines Vorderradantriebes entlang der Laufringe 4, 5 gezogen, wodurch seine Laufruhe erheblich verbessert ist.The shooter 6 is driven by means of a driver roller 19 which is freely rotatably mounted on the rotor 2. The driver roller 19 is arranged between the rollers 7, 7 'arranged on the front and rear ends of the shooter 6 and arrives during operation, that is to say with the shooter 6 rotating , In contact with a arranged at the front end of the shooter 6 roller 7, which rolls on the lower race 5. By this measure, the shooter 6 is, so to speak, by means of a front wheel drive along the races 4, 5 pulled, which significantly improves its smoothness.

Die mit der Mitnehmerrolle 19 in Kontakt gelangende Laufrolle 7 weist einen sich vom Laufring 5 in Richtung zu dessen Zentrum erstreckenden und sich in dieser Richtung verjüngenden kegelstumpfförmigen Fortsatz 20 auf, mit dem die Mitnehmerrolle 19 mit einem an ihr vorgesehenen ebenfalls kegelstumpfförmigen Mantelteil 21 in Kontakt gelangt. Die Drehachse 22 der Mitnehmerrolle 19 schneidet sich mit der Achse 23 der Laufrolle und mit der Verlängerung der Berührungslinie 24 der Mitnehmerrolle 19 mit der Laufrolle 7 in einem Punkt 25, wodurch die Lebensdauer der Mitnehmerrolle 19 als auch der mit ihr in Kontakt gelangenden Laufrolle 7 vergrössert ist. Um beim Stoppen der Maschine ein Weiterlaufen des Schützen 6 zu vermeiden, ist in Bewegungsrichtung 26 im Abstand 27 vor der Mitnehmerrolle 19 eine weitere, frei drehbare Rolle 28 am Rotor, d. h. an einem am Rotor montierten Tragkörper 29, montiert, wobei der Abstand 27 so gross bemessen ist, dass die dazwischenliegende Laufrolle 7 des Schützen 6 zumindest zu einer der Rollen 19 und 28 ein Spiel aufweist.The roller 7 coming into contact with the driving roller 19 has a frustoconical extension 20 which extends from the race 5 towards its center and tapers in this direction, with which the driving roller 19 comes into contact with a likewise frustoconical jacket part 21 provided on it . The axis of rotation 22 of the driver roller 19 intersects with the axis 23 of the roller and with the extension of the line of contact 24 of the driver roller 19 with the roller 7 at a point 25, whereby the life of the driver roller 19 and the roller 7 coming into contact with it increases is. In order to prevent the shooter 6 from continuing to run when the machine stops, a further, freely rotatable roller 28 on the rotor, i. H. on a support body 29 mounted on the rotor, the distance 27 being dimensioned so large that the intermediate roller 7 of the shooter 6 has play at least with one of the rollers 19 and 28.

Claims (1)

  1. A circular loom comprising a machine frame (1) including an upper and a lower running race (4, 5), between which a reed (3) and at least one shuttle (6) are arranged, which shuttle is guided in the running races (4, 5) by means of running rollers (7, 7') arranged on its front and rear ends and is drivable by means of a catch roller (19) arranged on a rotor (2), which catch roller, during operation, is in contact with a running roller (7) arranged on the front end of the shuttle (6) and is provided between the running rollers (7, 7') arranged on the front and rear ends of the shuttle (6), said running roller (7) having a frustoconical projection (20) extending from the running race (5) in the direction to its centre and tapering in this direction, with which projection the catch roller (19), which has a likewisely frustoconical jacket portion (21) getting into contact with the running roller (7) of the shuttle (6), gets into contact.
EP83890200A 1982-11-11 1983-11-09 Circular loom Expired EP0109386B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0410082A AT375410B (en) 1982-11-11 1982-11-11 ROUND WEAVING MACHINE
AT4100/82 1982-11-11

Publications (2)

Publication Number Publication Date
EP0109386A1 EP0109386A1 (en) 1984-05-23
EP0109386B1 true EP0109386B1 (en) 1986-08-27

Family

ID=3559657

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83890200A Expired EP0109386B1 (en) 1982-11-11 1983-11-09 Circular loom

Country Status (5)

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US (1) US4509562A (en)
EP (1) EP0109386B1 (en)
AT (1) AT375410B (en)
BR (1) BR8306187A (en)
DE (1) DE3365714D1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT385783B (en) * 1986-07-14 1988-05-10 Chemiefaser Lenzing Ag ROUND WEAVING MACHINE
US5293906A (en) * 1989-12-18 1994-03-15 Quadrax Corporation Circular loom for and method of weaving ribbon-shaped weft
DE4112770A1 (en) * 1991-04-19 1992-10-22 Rmb ROUND WEAVING MACHINE
US5409044A (en) * 1994-02-25 1995-04-25 Lin; Yao-Chang Circular loom having improved shuttle retention
CN1730751B (en) * 2005-08-19 2010-06-09 天津工业大学 Three-dimensional woven fabric production apparatus and method for weaving same
CN100376372C (en) * 2006-05-19 2008-03-26 张玉增 Dual-purpose circular weaving machine for woven bag and mesh bag
US11352721B2 (en) * 2019-07-24 2022-06-07 Innotec Lightweight Engineering & Polymer Technology Gmbh Circular loom with orbit path

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH277617A (en) * 1947-02-06 1951-09-15 Anonyme Saint Freres Societe Circular loom shuttle intended to be propelled by a push roller.
US2813547A (en) * 1952-12-22 1957-11-19 Sagem Circular loom
US3076482A (en) * 1958-09-09 1963-02-05 Mandals Reberbane Christiansen Shuttle arrangements in circular looms for hoses or the like
GB1399711A (en) * 1973-10-12 1975-07-02 Torii Winding Machine Co Shuttle arrangement in a circular loom for weaving tape yarn
AT371846B (en) * 1981-11-25 1983-08-10 Chemiefaser Lenzing Ag ROUND WEAVING MACHINE

Also Published As

Publication number Publication date
EP0109386A1 (en) 1984-05-23
ATA410082A (en) 1983-12-15
DE3365714D1 (en) 1986-10-02
AT375410B (en) 1984-08-10
US4509562A (en) 1985-04-09
BR8306187A (en) 1984-07-31

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