EP1775357A2 - Servomoteur angulaire pour contrôler la position des éléments qui sont connectés avec les fils de trame ou les fils de chaîne, dans un métier à tisser - Google Patents

Servomoteur angulaire pour contrôler la position des éléments qui sont connectés avec les fils de trame ou les fils de chaîne, dans un métier à tisser Download PDF

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Publication number
EP1775357A2
EP1775357A2 EP06122076A EP06122076A EP1775357A2 EP 1775357 A2 EP1775357 A2 EP 1775357A2 EP 06122076 A EP06122076 A EP 06122076A EP 06122076 A EP06122076 A EP 06122076A EP 1775357 A2 EP1775357 A2 EP 1775357A2
Authority
EP
European Patent Office
Prior art keywords
motor
rotor
angular
servo
angular servo
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Withdrawn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
EP06122076A
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German (de)
English (en)
Other versions
EP1775357A3 (fr
Inventor
Fabio Bonollo
Vittorio Perrone
Stefano Pezzin
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.)
Smit SpA
Original Assignee
Smit SpA
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 Smit SpA filed Critical Smit SpA
Publication of EP1775357A2 publication Critical patent/EP1775357A2/fr
Publication of EP1775357A3 publication Critical patent/EP1775357A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C11/00—Selvedge shedding mechanisms not forming part of main shedding mechanism

Definitions

  • the present invention refers to an angular servo-motor for the controlled positioning of elements connected to weft or warp yarns in a weaving machine.
  • the invention regards an angular position control servo-motor, adapted to drive a device dedicated to the control of one or more weft or warp yarns, which determines the positioning of an element adapted to interact with the yarn or yarns to which it is dedicated.
  • the mechanism which is object of the present invention permits actuating elements on which heddles (which control binding yarns) are mounted, so to obtain, on the sides of the fabric, the weaves with the weft yarns necessary for the formation and binding process of the fabric edges.
  • This operation regards the movement of the binding yarns known as "leno weave" and of the binding yarns of the false selvedges.
  • this device type does not have a position control, it has limited torques, insufficient for specific applications, and finally with such devices it is not possible to pre-select the oscillation amplitude, which is determined in unequivocal manner by the structural geometry.
  • Another controlled positioning device known today is of parallelogram type; the structure of such device is moreover mechanically complex and, due to the lever devices and the mass of the movable equipment, it has a greater inertia, a smaller electrical efficiency and a higher cost with respect to the device which is object of the present invention.
  • a third type of controlled positioning devices currently known uses conventional servo-motors with stepper motors or "brushless" motors for the actuation of the small heddle-carrier looms; such devices, nevertheless, have considerable disadvantages due to the large size and overall cost of the group.
  • Object of the present invention is therefore that of overcoming the abovementioned drawbacks, and in particular that of realising an angular servo-motor for the controlled positioning of an element connected to a yarn, in a weaving machine, which permits obtaining an adequate position control and which permits at the same time conferring to the rotor movement and thus to the heddles the movement diagram most adapted to the weaving needs of the article being processed.
  • Another object of the invention is that of realising an angular servo-motor for the controlled positioning of an element connected to a yarn in a weaving machine which permits predetermining the oscillation amplitude of the rotor, so to actuate a movement flexibility adapted to the user needs.
  • Further object of the invention is that of realising an angular servo-motor for the controlled positioning of an element connected to a yarn, in a weaving machine, which is of simple, compact, and rational construction and of reduced size with respect to the prior art, adapted to function at high speed, so to be usable for all applications, without reaching high temperature levels of the electrical components and maintaining excellent position control at the ends of the oscillation arc.
  • the device, object of the present invention permits the position control which permits conferring to the movement of the rotor, and thus to the heddles, the motion diagram most adapted to the weaving needs of the article being processed.
  • the direct current is sent to the rotor, actuated by a control which permits predetermining the oscillation amplitude; moreover, the system, simple and of reduced size, is equipped with a high torque, which makes it adapted for all applications.
  • the simple construction easily inspected, permits operation in dusty environments and in the presence of vibrations, and furthermore the low inertia of the masses in alternating motion permit use at high speeds, maintaining low temperature levels of the electrical components and good control of the positions in the oscillation arc.
  • the device, object of the present invention is essentially composed of an angular position control motor, with direct current sent to a "brushless" rotor connected to a sequence of elements, consisting of cables and small heddle carrier looms, capable of conferring an alternating motion to the aforesaid small heddle carrier looms, such to obtain desired weaves between weft yarns and warp yarns.
  • the angular servo-motor according to the present invention is substantially composed of a rotor 1, rotating on the shaft 1'', which makes up part of the fixing plate 2.
  • the rotor 1 is composed of a winding 1', through which an electrical current flows, fed from the conductor 3, and is equipped with control sensors 4.
  • stator 7 magnets 2', 2" are fixed, appropriately shaped for such purpose.
  • the movable elements which make up the device, object of the invention comprise in sequence a cable 5, which slides around the transmission pulleys 6', 6'', 6''', 6''' and is bound to the heddle-carrier rods 8 and 9 respectively in the points 8' and 9'.
  • the two ends of the cable 5 finally connect to the oscillating body of the rotor 1, while the heddle-carrier rods are fixed to the small looms 10, 11 on which the heddles 12 of the false selvedges and the heddles 13 of the "leno weave" are preferably further mounted.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
EP06122076A 2005-10-17 2006-10-11 Servomoteur angulaire pour contrôler la position des éléments qui sont connectés avec les fils de trame ou les fils de chaîne, dans un métier à tisser Withdrawn EP1775357A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITVI20050276 ITVI20050276A1 (it) 2005-10-17 2005-10-17 Servomotore angolare per il posizionamento controllato di elementi connessi a fili di trama o di ordito, in una macchina per tessere

Publications (2)

Publication Number Publication Date
EP1775357A2 true EP1775357A2 (fr) 2007-04-18
EP1775357A3 EP1775357A3 (fr) 2007-07-18

Family

ID=37698328

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06122076A Withdrawn EP1775357A3 (fr) 2005-10-17 2006-10-11 Servomoteur angulaire pour contrôler la position des éléments qui sont connectés avec les fils de trame ou les fils de chaîne, dans un métier à tisser

Country Status (3)

Country Link
EP (1) EP1775357A3 (fr)
CN (1) CN1953304A (fr)
IT (1) ITVI20050276A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103924354B (zh) * 2014-03-27 2015-05-27 经纬纺织机械股份有限公司 一种联动式边组织开口机构

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09268450A (ja) * 1996-01-29 1997-10-14 Toyota Autom Loom Works Ltd 織機における捨耳形成方法及び装置
US6006792A (en) * 1997-08-01 1999-12-28 Lindauer Dornier Gesellschaft Mbh Rotating leno selvage device with direct electromagnetic drive having axial magnetic flux
EP1052766A2 (fr) * 1999-05-14 2000-11-15 L.G.L. Electronics S.p.A. Méthode et dispositif pour règler des moteurs électriques à courant continu du type sans balai, en particulier pour déplacer le bras d'enroulement de fil de trame dans les fournisseur de trame pour métiers à tisser
US6189576B1 (en) * 1998-12-09 2001-02-20 Sulzer Rueti Ag Apparatus for the controlled moving of a warp thread
US6227253B1 (en) * 1996-09-30 2001-05-08 Picanol N.V. Method and device for twisting at least two running for a loom selvage forming device
US20020124901A1 (en) * 2001-03-07 2002-09-12 Lindauer Dornier Gesellschaft Mbh Drive mechanism for shed forming components of a loom
US6913044B2 (en) * 2001-11-08 2005-07-05 Lindauer Dornier Gesellschaft Mbh Electric motor direct drive for the reed of a loom

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09268450A (ja) * 1996-01-29 1997-10-14 Toyota Autom Loom Works Ltd 織機における捨耳形成方法及び装置
US6227253B1 (en) * 1996-09-30 2001-05-08 Picanol N.V. Method and device for twisting at least two running for a loom selvage forming device
US6006792A (en) * 1997-08-01 1999-12-28 Lindauer Dornier Gesellschaft Mbh Rotating leno selvage device with direct electromagnetic drive having axial magnetic flux
US6189576B1 (en) * 1998-12-09 2001-02-20 Sulzer Rueti Ag Apparatus for the controlled moving of a warp thread
EP1052766A2 (fr) * 1999-05-14 2000-11-15 L.G.L. Electronics S.p.A. Méthode et dispositif pour règler des moteurs électriques à courant continu du type sans balai, en particulier pour déplacer le bras d'enroulement de fil de trame dans les fournisseur de trame pour métiers à tisser
US20020124901A1 (en) * 2001-03-07 2002-09-12 Lindauer Dornier Gesellschaft Mbh Drive mechanism for shed forming components of a loom
US6913044B2 (en) * 2001-11-08 2005-07-05 Lindauer Dornier Gesellschaft Mbh Electric motor direct drive for the reed of a loom

Also Published As

Publication number Publication date
ITVI20050276A1 (it) 2007-04-18
CN1953304A (zh) 2007-04-25
EP1775357A3 (fr) 2007-07-18

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