EP0110014A1 - Moyen pour tourner ou transporter la chaîne d'un métier à tisser - Google Patents

Moyen pour tourner ou transporter la chaîne d'un métier à tisser Download PDF

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Publication number
EP0110014A1
EP0110014A1 EP83108207A EP83108207A EP0110014A1 EP 0110014 A1 EP0110014 A1 EP 0110014A1 EP 83108207 A EP83108207 A EP 83108207A EP 83108207 A EP83108207 A EP 83108207A EP 0110014 A1 EP0110014 A1 EP 0110014A1
Authority
EP
European Patent Office
Prior art keywords
deflecting
conveying element
center
element according
deflection
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Withdrawn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
EP83108207A
Other languages
German (de)
English (en)
Inventor
Rudolf Vogel
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.)
Maschinenfabrik Sulzer Rueti AG
Maschinenfabrik Rueti AG
Original Assignee
Maschinenfabrik Sulzer Rueti AG
Maschinenfabrik Rueti 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 Maschinenfabrik Sulzer Rueti AG, Maschinenfabrik Rueti AG filed Critical Maschinenfabrik Sulzer Rueti AG
Publication of EP0110014A1 publication Critical patent/EP0110014A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D49/00—Details or constructional features not specially adapted for looms of a particular type
    • D03D49/04—Control of the tension in warp or cloth
    • D03D49/22—Back rests; Lease rods; Brest beams

Definitions

  • the invention relates to a deflecting or conveying element for warp thread sheets on weaving machines, which extends over the width of a thread sheet and exerts a restoring force on the tensioned threads.
  • the like organs which are used, for example, as a match tree or as rollers for the release of the pile warp threads in terry weaving machines, are known both in the form of rotatable rollers and in the form of rods, the rods being fastened at their ends to one arm each.
  • the rod and arm system can be designed as a pendulum element and the rotatable rollers can be provided with an elastic covering.
  • rollers are used as deflection or conveyor rollers for pile warp threads and, because of their elastic coating, make it easier for the pile warp threads to slip during the full stop of the reed, because they offer little resistance to this slip of the pile warp threads involved in the partial stops of the weft threads at a distance from the fabric stop edge .
  • the invention is intended to provide a deflecting or conveying element, the thread tension of which also the warp threads at the ends of the organ do not fall below a certain minimum value, so that a correct division of the compartments is guaranteed in any case.
  • the organ mentioned is designed such that the return path in the region of the ends of the organ and thus the return path for the marginal threads is greater than in the region of the center of the organ.
  • the invention is based on the new finding that the loosening of the edge threads is caused by a deflection of the deflecting or conveying element as a result of the tension of the warp threads.
  • the warp threads should be loosened most where the organ is most bent, i.e. in the middle.
  • this does not apply, since the deflection is a result of the warp tension and this means that all the warp threads are tensioned.
  • a first preferred embodiment of a deflecting or conveying element according to the invention which is designed like a roller and has a rigid supporting part and a tubular deflecting part carried by it, is characterized in that the deflecting part on the supporting part is firm in its central region and increasingly flexible towards its ends is supported.
  • a second preferred embodiment of a deflecting or conveying element according to the invention is characterized in that it is designed in the form of a bow and is formed by a rod carried in the region of its center by at least one bearing arm.
  • the deflecting or conveying element shown in FIG. 1 is cylindrical and consists of a supporting part 1 supported at its ends, which can be formed by a tube or a shaft, and a deflecting part 3 supported on the supporting part 1 by a fixed spacer ring 2
  • the deflection part 3 is designed as a thin-walled tube.
  • the spacer ring 2 is arranged in the middle of the deflection part 3.
  • two further fixed spacer rings could be provided symmetrically to the spacer ring 2 shown, or one could also use only two spacer rings, which would then be arranged symmetrically to the center of the deflection part 3. It is essential that the deflection part 3 is firmly supported on the support part 1 in the area of its center. Since there are no spacer rings towards the ends, the support mentioned is increasingly flexible from the center against the ends of the deflection part 3.
  • the state shown should correspond to the moment of the weft attack at which the warp threads are pulled the most in the X direction.
  • the amount of the deflection of the supporting part 1 is denoted by A
  • that of the deflection of the deflecting part 3 is denoted by B.
  • the warp threads K M would be tensioned much more or, in other words, the edge warp threads K R would be loosened. Since this loosening takes place at the time of the opening of the warp threads, there would be no clean compartment division and edge warp threads K R would sag and adversely affect the next weft insertion.
  • the deflector swings thus back over its entire length to the position shown in dash-dotted lines, this swinging back taking place in the middle by the length A and at the ends by the length A + B.
  • the restoring effect of the deflecting element on the warp threads is therefore greater at its ends than in the middle.
  • the deflection element shown in FIG. 2 consists of a cylindrical support tube 1 which is as stable as possible and which carries the deflection part designed as a thin-walled tube 3 via spacer rings 2, 2 '.
  • a spacer ring 2 is arranged in the middle of the deflection element; Further spacer rings 2 ′ are provided symmetrically to the center, the mutual distance between them increasing with increasing distance from the middle spacer ring 2.
  • the spacer rings 2 ' consist of an elastic material, for example rubber; the middle spacer ring 2 can also consist of this elastic material or else of an inelastic material, for example made of steel.
  • the deflection element shown in FIG. 3 consists of a support tube 4 which is as stable as possible, the jacket of which has the shape of a double truncated cone, the diameter of which is largest in the middle of the deflection element and decreases towards the ends thereof.
  • a thin, cylindrical tube 5, which forms the deflection part of the deflection member, is pushed over the support tube 4, the inside diameter of which is either the same size or larger than the maximum diameter of the support tube 4 in the middle of the deflection member.
  • the support tube 4 could also have a cylindrical casing part connecting the two truncated cones, onto which the tube 5 would be fitted, in the region of its maximum diameter.
  • the space between the outer jacket of the support tube 4 and the inner jacket of the tube 5 is, according to the illustration, filled by an insert 6 made of an elastic material, for example rubber, adapted to the truncated cone-shaped profile of the support tube 4.
  • the insert 6 thus has a tubular shape and its wall thickness increases from the center of the deflecting member, along the frustoconical parts of the support tube 4, towards the ends.
  • the cylindrical tube 5, like the tube 3 (FIGS. 1, 2), has a small wall thickness of approximately 1 mm or less.
  • roller-shaped deflecting or conveying elements shown in FIGS. 1 to 3 can either be rotatably or fixedly mounted at their ends.
  • the deflecting or conveying member is designed like a bow and consists of a bar 7 which extends over the width of the warp thread array and is supported in the region of its center by bearing arms 8 firmly anchored on the machine.
  • bearing arms 8 arranged symmetrically to the middle can be provided, or just one bearing arm in the middle, or possibly one bearing arm in the middle and two more symmetrically to this.
  • the rod 7 is bent at its ends by the fixed bearing in the middle by the warp tension and can therefore only swing back with its ends, so that here too the return path for the marginal threads is greater than that on the middle threads and therefore no loosening of the Edge threads can occur.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
EP83108207A 1982-11-24 1983-08-19 Moyen pour tourner ou transporter la chaîne d'un métier à tisser Withdrawn EP0110014A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH6849/82 1982-11-24
CH684982 1982-11-24

Publications (1)

Publication Number Publication Date
EP0110014A1 true EP0110014A1 (fr) 1984-06-13

Family

ID=4315991

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83108207A Withdrawn EP0110014A1 (fr) 1982-11-24 1983-08-19 Moyen pour tourner ou transporter la chaîne d'un métier à tisser

Country Status (2)

Country Link
EP (1) EP0110014A1 (fr)
JP (1) JPS59106545A (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3346030A1 (de) * 1983-12-20 1985-06-20 Institute für Textil- und Faserforschung Stuttgart, 7306 Denkendorf Webmaschine
DE102010029431A1 (de) * 2010-05-28 2011-12-01 Voith Patent Gmbh Mittengestützte Walze
CN110258005A (zh) * 2019-07-15 2019-09-20 浙江越剑智能装备股份有限公司 一种喷气毛巾织机的起毛装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102817164A (zh) * 2012-07-23 2012-12-12 苏州迪盛织造整理有限公司 喷水织机布边张力控制装置

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE234738C (fr) *
US881336A (en) * 1907-05-22 1908-03-10 Napoleon Paquette Oscillating lease-rod.
US2996784A (en) * 1959-06-30 1961-08-22 John Dusenbury Company Inc Curved roller
DE1218392B (de) * 1962-07-21 1966-06-08 Artos Meier Windhorst Kg Anpresswalze
CH526656A (de) * 1970-09-18 1972-08-15 Elitex Zavody Textilniho Streichbaum eines Webstuhles
DE2237949A1 (de) * 1971-09-13 1973-03-22 Gulf & Western Syst Co Walze
DE2240090A1 (de) * 1971-09-13 1973-03-29 Gulf & Western Syst Co Walze
DE3205251A1 (de) * 1981-05-22 1982-12-16 Veb Robur-Werke Zittau, Ddr 8800 Zittau Kernrohrwalze
DD202976A5 (de) * 1980-07-16 1983-10-12 Rhone Poulenc Agrochimie Herbizides mittel

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE234738C (fr) *
US881336A (en) * 1907-05-22 1908-03-10 Napoleon Paquette Oscillating lease-rod.
US2996784A (en) * 1959-06-30 1961-08-22 John Dusenbury Company Inc Curved roller
DE1218392B (de) * 1962-07-21 1966-06-08 Artos Meier Windhorst Kg Anpresswalze
CH526656A (de) * 1970-09-18 1972-08-15 Elitex Zavody Textilniho Streichbaum eines Webstuhles
DE2237949A1 (de) * 1971-09-13 1973-03-22 Gulf & Western Syst Co Walze
DE2240090A1 (de) * 1971-09-13 1973-03-29 Gulf & Western Syst Co Walze
DD202976A5 (de) * 1980-07-16 1983-10-12 Rhone Poulenc Agrochimie Herbizides mittel
DE3205251A1 (de) * 1981-05-22 1982-12-16 Veb Robur-Werke Zittau, Ddr 8800 Zittau Kernrohrwalze

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3346030A1 (de) * 1983-12-20 1985-06-20 Institute für Textil- und Faserforschung Stuttgart, 7306 Denkendorf Webmaschine
DE102010029431A1 (de) * 2010-05-28 2011-12-01 Voith Patent Gmbh Mittengestützte Walze
CN110258005A (zh) * 2019-07-15 2019-09-20 浙江越剑智能装备股份有限公司 一种喷气毛巾织机的起毛装置

Also Published As

Publication number Publication date
JPS59106545A (ja) 1984-06-20

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19830819

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 19840618

RIN1 Information on inventor provided before grant (corrected)

Inventor name: VOGEL, RUDOLF