EP1619279A1 - Fachbildemechanismus, Dreipositions-Fachbildemechanismus und Webmaschine mit einem solchen Fachbildungsmechanismus - Google Patents

Fachbildemechanismus, Dreipositions-Fachbildemechanismus und Webmaschine mit einem solchen Fachbildungsmechanismus Download PDF

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Publication number
EP1619279A1
EP1619279A1 EP05356124A EP05356124A EP1619279A1 EP 1619279 A1 EP1619279 A1 EP 1619279A1 EP 05356124 A EP05356124 A EP 05356124A EP 05356124 A EP05356124 A EP 05356124A EP 1619279 A1 EP1619279 A1 EP 1619279A1
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EP
European Patent Office
Prior art keywords
retaining
levers
hook
lever
hooks
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.)
Granted
Application number
EP05356124A
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English (en)
French (fr)
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EP1619279B1 (de
Inventor
Dario Bassi
Alexis Porte
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.)
Staeubli Lyon SA
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Staeubli Lyon SA
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Publication date
Application filed by Staeubli Lyon SA filed Critical Staeubli Lyon SA
Publication of EP1619279A1 publication Critical patent/EP1619279A1/de
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Publication of EP1619279B1 publication Critical patent/EP1619279B1/de
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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C3/00—Jacquards
    • D03C3/12—Multiple-shed jacquards, i.e. jacquards which move warp threads to several different heights, e.g. for weaving pile fabrics
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C3/00—Jacquards
    • D03C3/20—Electrically-operated jacquards

Definitions

  • the invention relates to a shedding mechanism, a three-position weave mechanism and a weaving loom equipped with such weave mechanics.
  • a loom incorporating a clean armor mechanism to generate three positions warp son is generally used for the realization of special fabrics such as, especially, velvet or carpets.
  • EP-A-0 839 937 discloses a three-position weave mechanism in which movable hooks are provided to be moved in pairs by the knives of the machine, a hook of each pair being in simple bearing on the second hook of this pair.
  • the hooks are joined in pairs by funicular elements and associated with several pulleys adapted to be spaced apart from one another in a variable manner, depending on the position of these four hooks.
  • EP-A-0 899 367 It is also known from EP-A-0 899 367 to provide, in a selection device for a three-position armor mechanic, two pairs of pivoting levers, arranged on either side of two superposed electromagnets, the levers each pair of levers can be controlled by one of the electromagnets and each being provided with a movable hook immobilizing nose belonging to a pair of hooks superimposed on one another and able to be moved together by a knife.
  • This device works properly but is relatively complex in manufacturing in that one of the pivoting levers extends on both sides of its axis of articulation with an elaborate form, which increases all its cost price. .
  • the wad can accumulate in the area provided between each lever and the adjacent portion of the electromagnet which serves to control its pivoting which can, in the long run, lead to errors selection that leads to the creation of "faults" on the fabric or carpet being manufactured.
  • the two movable hooks penetrate near the top dead center of their trajectory, between the spouts of the retaining levers, these movable hooks being in practice made of plastic and having a variable width according to the manufacturing tolerances, differences in the width of the movable hooks may lead to inappropriate positioning of one or other of the pivoting retaining levers, which again may lead to "mistakes" on the fabric or carpet being woven.
  • the invention intends to remedy more particularly by proposing a shedding mechanism intended to be used in a three-position armormechanical and whose manufacture and use are easier than those systems of the state of the art, while its reliability of operation is improved.
  • the invention relates to a shedding mechanism for the three-position weave mechanism of a jacquard weaving loom, said mechanism comprising at least two electromagnets superimposed and able to be selectively activated, and two pairs of pivoting retaining levers, the retaining levers of the same pair being disposed on the same side of the electromagnets and each provided with a metal armature adapted to cooperate with one of the electromagnets and a spout for retaining a movable hook belonging to a pair of hooks adapted to be moved together by a knife.
  • This mechanism is characterized in that, within the same pair of movable hooks, a first hook comprises a body intended to come into simple support on the knife and a flexible blade intended to interact with one of the retaining levers, while the second hook comprises a body intended to come in simple support on the body of the first hook, and a flexible blade for interacting with the other retaining lever of the same pair of levers, in that each blade is fixed on the corresponding body with the possibility of deflection, in that the retaining lip of each retaining lever is arranged on the side of the lever opposite to the associated electromagnet, in that the nozzles of retaining the levers of the same pair are offset relative to each other both in a direction parallel to the direction of movement of the associated movable hooks and in a direction perpendicular to this direction of movement and in that the portions of the flexible blades for interacting with these retaining beaks have substantially the same offset between them in the two aforementioned directions when the body of the second mobile hook is supported on the body of the first.
  • the flexible blade attached to the body of each movable hook is intended to interact with one of the levers of a pair of levers, its geometry being well defined because the manufacturing tolerances of a blade can be very precise.
  • the body of each hook which is advantageously made of synthetic material, can be very solid because relatively mass. The flexibility of the blade is used to allow its movement relative to the body of each hook, which allows it to come into effective engagement with the corresponding retaining lever, either when leveling the pivoting levers or for the retaining the hook in the vicinity of the upper position of its trajectory.
  • the leveling force exerted by the elastic blade on the Levers are quite comparable between the two levers and, conversely, the retaining force exerted by the nozzle of each lever is quite comparable on the two hooks of the same pair.
  • the electromagnets, their respective control devices and the associated levers may be substantially identical, which facilitates the development of the trade, improves reliability, reduces the cost and makes the mechanism more compact. This is important since an armor mechanic can have more than 10,000 such mechanisms.
  • the invention also relates to a three-position Jacquard loom weave mechanism which comprises at least one selection mechanism as previously described. Such a mechanism is more reliable and more economical than those of the state of the art.
  • the invention relates to a loom equipped with a weave mechanism as mentioned above, such a loom being more reliable and easier to use than those of the state of the art.
  • the shedding mechanism shown in Figures 1 to 3 is intended to be integrated with a three-position weave mechanism mounted on a carpet-making loom. It allows to control the position of a carabiner or bottom end hook of an arch to which is or are suspended one or more smooth.
  • the part of the mechanism shown in the figures is associated with several superimposed pulleys according to the technical teaching of EP-A-0 839 937, the relative position of the pulleys for controlling the height of the aforementioned carabiner or end hook. To control the position of these pulleys, two of which are shown schematically only in FIG.
  • two funicular elements 1 and 2 made in the form of cords respectively connect two outer movable hooks 11 and 11 'and two inner movable hooks 12 and 12 '.
  • the hooks 11 and 12, on the one hand, and 11 'and 12', on the other hand, are intended to be moved together by a knife 13 or 13 ', the inner hook of each pair of hook then being in simple support on the outer hook of the same pair, this also in accordance with the technical teaching of EP-0 839 937.
  • the mechanism M also comprises two electromagnets 4 and 5 superposed parallel to the direction of a substantially vertical axis ZZ 'in FIG. 1 and corresponding to the direction of movement of the pulleys P 1 and P 2 .
  • the electromagnets 4 and 5 can be selectively activated by a not shown control module.
  • levers 21 and 21 ', respectively 22 and 22' On either side of the electromagnets 4 and 5 are arranged two pairs of levers 21 and 21 ', respectively 22 and 22'.
  • the levers 21, 21 ', 22 and 22' are structurally identical and are each pivotally mounted about a shaft 211, 211 ', 221 respectively 221' whose geometric axis X 211 , X 211 ' , X 221 , X 221 is fixed relative to a housing 6 of the mechanism fixed relative to the structure in the art.
  • the axes X 211 and equivalents are generally perpendicular to the axis ZZ '.
  • the lever 21 comprises an upper eyelet 212 in which is formed a passage opening of the shaft 211 and extends, essentially, below the shaft 211 in Figure 1, that is to say in practice downwards in a direction generally parallel to the axis ZZ '.
  • the lever 21 comprises a metal armature 213 disposed substantially facing the electromagnet 4 and which extends in a direction generally parallel to the axis ZZ 'and perpendicular to the axis X 211 .
  • the lever 21 is provided with a spout 214 on which can be hung a portion of the movable hook 11, as can be seen from the explanations that follow.
  • the lever 21 also carries a deflector 215 which makes it possible to isolate from the outside a chamber C 21 of variable volume depending on the angular position of the lever 21 around the X axis 211 .
  • the lever 21 is pivotally mounted about the X axis 211 , as it emerges from the double arrow F 1 , the chamber C 21 being bordered by the two polar contact surfaces respectively provided on the lever 21 and on the electromagnet 4.
  • the angular position of the lever 21 can be controlled by means of the electromagnet 4 and a compression spring 14 which is interposed between the lever 21 and a central portion 6A of the housing 6.
  • the spring 14 exerts on the lever 21 a resilient force E 4 which tends to move the spout 214 of the axis Z-Z '.
  • the levers 21 ', 22 and 22' are structurally identical to the lever 21 and are each provided with a metal frame 213 ', 223 and 223', a retaining lip 214 ', 224 and 224' and a deflector 215 ', 225 and 225' and subjected to the action of a spring 14 ', 15 and 15'.
  • the levers 21 ', 22 and 22' also each extend in a direction generally parallel to the axis ZZ 'with respect to the X axes 211' , X 221 and X 221 ' . These levers are pivotally mounted about their respective axes, as shown by the arrows F ' 1 , F 2 and F' 2 and their position can be controlled by the electromagnets 4 or 5 and the springs 14 and the like.
  • the axes X 211 and X 221 are offset parallel to the axis ZZ 'by a distance d 1 greater than the length of the lever 21. These axes are also offset, in a direction YY' perpendicular to the axis ZZ 'and to X 211 and X 221 axes, a distance d 2 , the X axis 211 being further from the axis ZZ 'than the X axis 221 .
  • the beaks 214 and 224 are also offset distances d 1 and d 2 both parallel to the axis ZZ 'and perpendicular to this axis.
  • the retaining levers extend on one side of their respective axes of articulation makes it possible to obtain a good definition of their geometry, which significantly conditions the reliability of operation of the mechanism M.
  • the rotational inertia of these levers is relatively low, which makes it possible to use return springs 14 and the like, exerting a return force E 4 or equivalent of low intensity and, consequently, electromagnets 4 and 5 relatively weak and therefore compact.
  • the hook 11 is bi-partite and comprises a body 111 of relatively massive plastic material and in which is molded an end 112 of a flexible metal blade 113 intended to interact with the lever 21.
  • This bi-partite structure can be approximated by that described in EP-A-1 413 657 for a two-position armor mechanic.
  • the mechanism of the present invention is substantially different from this prior art because of its particular configuration adapted to a three-position armor mechanic.
  • the blade 113 is provided, near its end 114 farthest from the body 111 of an opening 115 for receiving the spout 214 of the lever 21.
  • the hook 11 can it be held in position, near the top dead center of its trajectory, by the lever 21.
  • the hook 12 comprises a body 121 of synthetic material in which is molded the lower end 122 of a flexible metal blade 123 intended to interact on the lever 22. In the vicinity of its upper end 124, the blade is provided with an opening for receiving the spout 224 of the lever 22.
  • the blade 113 is substantially longer than the blade 123, which corresponds to the fact that, in the retaining position of the movable hooks 11 and 12 at near the top dead center of their trajectory, the distance between the body 111 and the spout 214 is substantially greater than the distance between the body 121 and the spout 224.
  • the blades 113 and 123 are capable of angular displacement relative to their attachment zone on the bodies 111 and 121, which represent the arrows F 3 .
  • the blades 113 and 123 are each guided in a slideway 116 or 126 formed by the housing 6 and extending to the vicinity of the lever 21 or 22. At the same distance d 6 hooks 214 and 224, the slides 116 and 126 flare away from the axis ZZ 'and up to the beaks, to allow the bending of the blades 113 and 123 on the same height, in the vicinity of their respective upper ends 114 and 124. Thus, even if the blades 113 and 123 have different lengths, they flex under similar conditions, which implies that the leveling forces exerted on the levers 21 and 22 are substantially identical.
  • the ends 114 and 124 of the blades 113 and 123 and, in particular, their openings 115 and equivalent, have the same spatial offset as the nozzles 214 and 224.
  • the ends 214 and 224 are offset by d 1 parallel to ZZ 'and d 2 parallel to Y-Y', which allows them to interact simultaneously with the hooks 214 and 224.
  • the structure of the movable hooks 11 'and 12' is respectively identical to that of the hooks 11 and 12.
  • the spouts 214 and 224 are directed, relative to the main part of the levers 21 and 22, opposite the magnets 4 and 5. In the same way, the spouts 214 'and 224' are directed to the opposite electromagnets.
  • the blades 113, 123, and the blades corresponding 113 'and 123' of the movable hooks 11 'and 12' come into contact with the levers 21, 22, 21 'and 22' from the outside with respect to the electromagnets 4 and 5, which is particularly advantageous when the leveling of the retaining levers, that is to say in the position shown on the left of Figure 1 when the knife 13 'moves the hook 11', so that the upper ends 114 'and 124' of the blades 113 'and 123' push the levers 21 'and 22' towards the electromagnets 4 and 5.
  • the lever or levers 21 'and 22 ' is or are effectively retained (s) substantially pressed against the electromagnet (s), which allows the hook 11' and possibly the hook 12 'to descend in support on the knife 13' when it primer his race down.
  • Such a configuration is shown on the right of Figure 2 and corresponds to the descent of the knife 13 after a leveling has been performed as shown on the left of Figure 1.
  • the electromagnet 4 was activated then that the electromagnet 5 has not been activated, so that the spout 224 of the lever 22 which is pushed by the spring 15 has retained in position the blade 123 and, consequently, the whole of the hook 12, whereas, in view of the activation of the electromagnet 4, the spout 214 of the lever 21 has been removed from the path of the blade 113, which allows the hook 11 to come down on the knife 13.
  • the blades 113 'and 123' are guided in slides ensuring equal leveling forces exerted on the levers 21 'and 22'.
  • the electromagnets 4 and 5 have been activated, so that the nozzles 214 and 224 of the levers 21 and 22 have been erased. down paths of the blades 113 and 123 after leveling. In this case, the hooks 11 and 12 descend with the knife 13, resting on it.
  • the body 111 comprises a spout 111A intended to rest on the knife 13 during movements of the hook 11 and a heel 111B located on the side of the body 111 opposite the spout 111A relative to the blade 113, this heel 111B is intended to receive in simple support a heel 121B formed by the body 121, in particular in the configurations of Figures 1 and 3.
  • the interaction between the body 111 and 121 of the hooks 11 and 12 does not affect the part of these hooks used for their retention in the high position, whereas this is the case of the materials known from EP-A-0 839 937 and EP-A-0 899 367.
  • a weave mechanism according to the invention incorporates several mechanisms such as that described above and shown in the figures, in practice such a mechanism by smooth or group of smooth whose position must be controlled.
  • a loom according to the invention and provided with such armor mechanics as mentioned above can be used for weaving special fabrics, including velvet or carpets. It is more economical to buy and operate and the risk of mistakes is reduced.
  • the invention has been shown with two electromagnets 4 and 5 arranged between the levers 21, 21 ', 22 and 22'. It also applies to the case where the electromagnets are four in number, an electromagnet being dedicated to each lever.
  • the blades 113, 113 ', 123 and 123' are not necessarily metallic. They may be made of a synthetic material having mechanical properties adapted to their function, for example in fibers carbon or plastic filled with reinforcing fibers.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
EP20050356124 2004-07-19 2005-07-18 Fachbildemechanismus, Dreipositions-Fachbildemechanismus und Webmaschine mit einem solchen Fachbildungsmechanismus Active EP1619279B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0407980A FR2873131B1 (fr) 2004-07-19 2004-07-19 Mecanisme de formation de la foule, mecanique d'armure a trois positions et metier a tisser equipe d'une telle mecanique

Publications (2)

Publication Number Publication Date
EP1619279A1 true EP1619279A1 (de) 2006-01-25
EP1619279B1 EP1619279B1 (de) 2008-02-27

Family

ID=34947955

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20050356124 Active EP1619279B1 (de) 2004-07-19 2005-07-18 Fachbildemechanismus, Dreipositions-Fachbildemechanismus und Webmaschine mit einem solchen Fachbildungsmechanismus

Country Status (5)

Country Link
EP (1) EP1619279B1 (de)
CN (1) CN1724732B (de)
DE (1) DE602005004958T2 (de)
FR (1) FR2873131B1 (de)
RU (1) RU2363782C2 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3037601A1 (fr) * 2015-06-22 2016-12-23 Staubli Lyon Lame d'entrainement de crochets appartenant a une mecanique jacquard et mecanique jacquard comprenant une telle lame
EP4015687A1 (de) 2020-12-21 2022-06-22 Staubli Lyon Fachbildungsmechanismus und webmaschine vom typ jacquardwebmaschine, die mit einem solchen mechanismus ausgestattet ist
EP4015686A1 (de) 2020-12-21 2022-06-22 Staubli Lyon Fachbildungsmechanismus und webmaschine vom typ jacquardwebmaschine, die mit einem solchen mechanismus ausgestattet ist

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110670228B (zh) * 2019-11-22 2024-07-09 浙江慧林智能设备有限公司 一种高集成电子提花选针机构

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0839937A1 (de) 1996-10-04 1998-05-06 Staubli Lyon Dreistand Fachbildungsvorrichtung und Jacquardwebmaschine mit einer solchen Vorrichtung
EP0899367A1 (de) 1997-09-01 1999-03-03 Staubli Lyon Auswahlvorrichtung, Dreipositions- Fachbildungsmechanismus und Webmaschine mit einem solchen Fachbildungsmechanismus
US5881777A (en) * 1996-11-29 1999-03-16 Staubli Lyon Weaving loom with three-position jacquard selection device
EP1413657A1 (de) 2002-10-25 2004-04-28 Staubli Lyon Fachbildungsmechanismus und Webmaschinen mit einem solchen Mechanismus

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8827141D0 (en) * 1988-11-21 1988-12-29 Bonas Machine Co Heald control device
GB8902849D0 (en) * 1989-02-09 1989-03-30 Bonas Machine Co Heald rod retention system for use with an electronic jacquard system
DE4101778C1 (de) * 1991-01-18 1992-04-02 Fa. Oskar Schleicher, 4050 Moenchengladbach, De

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0839937A1 (de) 1996-10-04 1998-05-06 Staubli Lyon Dreistand Fachbildungsvorrichtung und Jacquardwebmaschine mit einer solchen Vorrichtung
US5881777A (en) * 1996-11-29 1999-03-16 Staubli Lyon Weaving loom with three-position jacquard selection device
EP0899367A1 (de) 1997-09-01 1999-03-03 Staubli Lyon Auswahlvorrichtung, Dreipositions- Fachbildungsmechanismus und Webmaschine mit einem solchen Fachbildungsmechanismus
US5996648A (en) * 1997-09-01 1999-12-07 Staubli Lyon Selection device, three-position weaving system and weaving loom equipped with such a weaving system
EP1413657A1 (de) 2002-10-25 2004-04-28 Staubli Lyon Fachbildungsmechanismus und Webmaschinen mit einem solchen Mechanismus
US20040079433A1 (en) * 2002-10-25 2004-04-29 Dario Bassi Shed forming mechanism and weaving loom equipped with such a mechanism

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3037601A1 (fr) * 2015-06-22 2016-12-23 Staubli Lyon Lame d'entrainement de crochets appartenant a une mecanique jacquard et mecanique jacquard comprenant une telle lame
EP3109352A1 (de) * 2015-06-22 2016-12-28 Staubli Lyon Antriebslamelle von aufhängehaken einer jacquardmaschine, und jacquardmaschine, die eine solche lamelle umfasst
KR20160150593A (ko) * 2015-06-22 2016-12-30 스또불리 리옹 자카드 기구의 이동 후크들을 위한 블레이드 및 이러한 블레이드를 구비한 자카드 기구
US9863068B2 (en) 2015-06-22 2018-01-09 Staubli Lyon Blade for moving hooks of a jacquard mechanism and jacquard mechanism comprising such a blade
EP4015687A1 (de) 2020-12-21 2022-06-22 Staubli Lyon Fachbildungsmechanismus und webmaschine vom typ jacquardwebmaschine, die mit einem solchen mechanismus ausgestattet ist
EP4015686A1 (de) 2020-12-21 2022-06-22 Staubli Lyon Fachbildungsmechanismus und webmaschine vom typ jacquardwebmaschine, die mit einem solchen mechanismus ausgestattet ist
FR3118070A1 (fr) 2020-12-21 2022-06-24 Staubli Lyon Mecanisme de formation de la foule et metier a tisser de type jacquard equipe d'un tel mecanisme
FR3118069A1 (fr) 2020-12-21 2022-06-24 Staubli Lyon Mecanisme de formation de la foule et metier a tisser de type jacquard
US11702771B2 (en) 2020-12-21 2023-07-18 Staubli Lyon Shedding mechanism and jacquard-type weaving loom equipped with such a mechanism

Also Published As

Publication number Publication date
CN1724732B (zh) 2010-12-15
DE602005004958D1 (de) 2008-04-10
FR2873131A1 (fr) 2006-01-20
DE602005004958T2 (de) 2009-03-12
RU2363782C2 (ru) 2009-08-10
EP1619279B1 (de) 2008-02-27
RU2005122726A (ru) 2007-01-27
CN1724732A (zh) 2006-01-25
FR2873131B1 (fr) 2006-09-08

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