EP0627512B2 - Damping device for looms - Google Patents
Damping device for looms Download PDFInfo
- Publication number
- EP0627512B2 EP0627512B2 EP94420160A EP94420160A EP0627512B2 EP 0627512 B2 EP0627512 B2 EP 0627512B2 EP 94420160 A EP94420160 A EP 94420160A EP 94420160 A EP94420160 A EP 94420160A EP 0627512 B2 EP0627512 B2 EP 0627512B2
- Authority
- EP
- European Patent Office
- Prior art keywords
- elastic means
- connecting rod
- oscillating
- return
- bar
- 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 - Lifetime
Links
Images
Classifications
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
- D03C5/00—Cam or other direct-acting shedding mechanisms, i.e. operating heald frames without intervening power-supplying devices
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
- D03C1/00—Dobbies
- D03C1/14—Features common to dobbies of different types
- D03C1/144—Features common to dobbies of different types linking to the heald frame
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/18—Mechanical movements
- Y10T74/18888—Reciprocating to or from oscillating
- Y10T74/1892—Lever and slide
- Y10T74/18944—Link connections
Definitions
- the present invention relates to a damping system intended to be associated with a weaving machine mechanism of the kind comprising, for the selective control of a wire or a group of wires, at least one member which is positively animated by a desmodromic oscillating movement.
- a mechanism for controlling the reciprocating movement of a group of wires in a weaving machine is known, for example documents EP-A-0 133 966 and CH-A-558 435.
- the improvements which are the subject of the present invention aim to remedy these drawbacks and allow the general amortization of inertial forces of the moving masses of a machine mechanism weave.
- each oscillating member is associated with elastic means which act in an antagonistic manner on said organ so as to tend to return it to its substantially median position.
- the single figure in this drawing is a simplified general view of a dobby comprising a damping system produced according to the invention.
- a known manner it comprises a control unit 1 that prints to an arm 1 has a reciprocating oscillating movement.
- the free end of the arm 1 a is articulated to a connecting rod 2 which is pivotally connected to the end of the first branch 3 a of a square lever 3 mounted to pivot relative to a horizontal fixed axis 4.
- a connecting bar 5 which attacks the branch 3 ' a of another lever 3' identical to that 3.
- the connecting bar 5 comprises a yoke 5 a which cooperates with a link 12 oscillating about a fixed axis 13.
- a plate in the form of a double T 14 is articulated to the link 12.
- a series of springs 15, 15 ' which are further hung on a lug 16, respectively 16'.
- Each of the latter cooperates with an adjustment screw 17, 17 'rotating freely in a fixed ear 18, 18'.
- system according to the invention can be applied to any oscillating member of a textile machine mechanism, such as example the leaf or comb of a loom which cooperates with the warp and weft threads to clamp the picks together others, or the weft pass launcher of a shuttleless craft.
- a textile machine mechanism such as example the leaf or comb of a loom which cooperates with the warp and weft threads to clamp the picks together others, or the weft pass launcher of a shuttleless craft.
- coil springs 15 and 15 'are can be replaced by a flat profile blade with one end is fixed to one of the branches of at least one of the levers 3 while that the other cooperates with an adjustment device linked to the structure fixed.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Looms (AREA)
- Auxiliary Weaving Apparatuses, Weavers' Tools, And Shuttles (AREA)
Description
La présente invention se réfère à un système amortisseur destiné à être associé à un mécanisme de machine à tisser du genre comprenant, pour la commande sélective d'un fil ou d'un groupe de fils, au moins un organe qui est positivement animé d'un mouvement oscillant desmodromique.The present invention relates to a damping system intended to be associated with a weaving machine mechanism of the kind comprising, for the selective control of a wire or a group of wires, at least one member which is positively animated by a desmodromic oscillating movement.
On sait que les dispositifs de formation de la foule des métiers à tisser sont réalisés sous la forme de ratières ou de mécaniques dites Jacquard comportant respectivement des cadres de lisses et des cadres de griffes entraínés au moyen de systèmes de manoeuvre de type positif. Ces organes, pourvus d'un mouvement de va-et-vient, ont des masses importantes de sorte que leur déplacement nécessitent bien entendu une grande consommation d'énergie et engendrent une énergie cinétique élevée. Dans ces conditions, au moment de l'inversion du mouvement, il se produit des efforts importants qui entrainent des usures excessives et créent des bruits néfastes à l'environnement ; ces efforts instantanés ("pics") très élevés se répercutent évidemment sur la consommation d'énergie.We know that the training systems for the multitude of trades to weaving are made in the form of dobbies or so-called mechanical Jacquard comprising heald frames and claws driven by positive type operating systems. These organs, provided with a back-and-forth movement, have significant masses so moving them of course requires great energy consumption and generate high kinetic energy. In these conditions, at the moment of the inversion of the movement, significant efforts which cause excessive wear and create noises harmful to the environment; these instantaneous efforts ("peaks") very high obviously have an impact on energy consumption.
Un mécanisme de commande du mouvement alternatif d'un groupe de fils dans une machine à tisser est connue, par exemple des documents EP-A-0 133 966 et CH-A-558 435.A mechanism for controlling the reciprocating movement of a group of wires in a weaving machine is known, for example documents EP-A-0 133 966 and CH-A-558 435.
Les perfectionnements qui font l'objet de la présente invention visent à remédier à ces inconvénients et à permettre l'amortissement général des forces d'inertie des masses en mouvement d'un mécanisme de machine à tisser.The improvements which are the subject of the present invention aim to remedy these drawbacks and allow the general amortization of inertial forces of the moving masses of a machine mechanism weave.
Le mécanisme suivant l'invention est défini à la revendication 1. D'autres
caractéristiques de l'invention sont définies dans les revendications 2 et 3.The mechanism according to the invention is defined in
En fait suivant l'invention, chaque organe oscillant est associé à des moyens élastiques qui agissent de manière antagoniste sur ledit organe de façon à tendre à ramener celui-ci à sa position sensiblement médiane.In fact according to the invention, each oscillating member is associated with elastic means which act in an antagonistic manner on said organ so as to tend to return it to its substantially median position.
Le dessin annexé, donné à titre d'exemple, permettra de mieux comprendre l'invention, les caractéristiques qu'elle présente et les avantages qu'elle est susceptible de procurer :The attached drawing, given as an example, will allow a better understanding the invention, the features it presents and the advantages that it is likely to provide:
La figure unique de ce dessin est une vue générale simplifiée d'une ratière comportant un système d'amortissement réalisé suivant l'invention.The single figure in this drawing is a simplified general view of a dobby comprising a damping system produced according to the invention.
On a illustré sur le dessin l'application de l'invention à un mécanisme pour machine à tisser constitué par une ratière. The application of the invention to a mechanism has been illustrated in the drawing. for weaving machine constituted by a dobby.
A la manière connue, celle-ci comporte un ensemble de commande 1 qui
imprime à un bras 1a un mouvement oscillant alternatif. L'extrémité
libre du bras 1a est articulée à une bielle 2 qui est reliée à pivotement
à l'extrémité de la première branche 3a d'un levier en équerre 3
monté pivotant par rapport à un axe fixe horizontal 4. A cette même extrémité
de la branche 3a du levier 3 est articulée une barre de liaison
5 qui attaque la branche 3'a d'un autre levier 3' identique à celui 3.
Les branches horizontales 3b, 3'b des leviers en équerre 3 et 3' attaquent
chacune une tige verticale 6, 6' connectée aux deux côtés d'un
cadre de lisse 7, à la façon bien connue dans la pratique, de telle
sorte qu'il n'est pas nécessaire de décrire cet agencement de manière
plus détaillée.A known manner, it comprises a
On rappellera que le basculement du bras 1a entraíne le déplacement
alternatif vertical du cadre 7.It will be recalled that the tilting of the
Conformément à l'invention, la barre de liaison 5 comporte une chape 5a
qui coopère avec une biellette 12 oscillant autour d'un axe fixe 13. Une
plaquette en forme de double T 14 est articulée à la biellette 12. A
chacune des parties transversales de cette dernière est accrochée une
série de ressorts 15, 15' qui sont en outre accrochés à une patte 16,
respectivement 16' . Chacune de ces dernières coopère avec une vis de
réglage 17, 17' tournant librement dans une oreille fixe 18, 18' .According to the invention, the connecting
Si les pattes 16, 16' se trouvent à égale distance de l'axe 13, les
séries de ressorts 15 et 15' exercent une force de rappel antagoniste
qui tend à ramener la biellette, et par conséquent la tige 5 et le cadre
7, dans une position sensiblement médiane.If the
On comprend aisément que le déplacement de la barre 5 dans un sens ou
dans l'autre tend une série de ressorts et détend l'autre.It is easily understood that the displacement of the
Si de manière symétrique, l'on déplace les pattes 16, 16' en direction
opposée de la biellette 12, on peut tendre davantage les ressorts de
manière à augmenter leur réaction. On peut aussi tendre plus les ressorts
15 associés à la patte 16 que ceux 15' associés à la patte 16' ou
inversement, de telle manière que la barre de liaison 5 soit ramenée
dans une position quelque peu différente de sa position d'équilibre
statique et que l'intensité des forces de rappel soit différente pour
l'un et l'autre sens de déplacement.If symmetrically, the
On a ainsi réalisé un système d'amortissement qui diminue en particulier les pics des efforts provoqués par les masses en déplacement au moment des inversions de sens. De cette manière, on peut réaliser des organes oscillants élastiquement équilibrés, évitant ainsi des efforts importants lors des inversions de sens de déplacement et diminuant finalement l'énergie consommée.We thus realized a damping system which decreases in particular the peaks of the forces caused by the moving masses at the time reversals of meaning. In this way, we can make organs resiliently balanced, thus avoiding significant efforts during reversals of direction of movement and finally decreasing the energy consumed.
Il va de soi que le système suivant l'invention peut être appliqué à tout organe oscillant d'un mécanisme pour machine textile, tel que par exemple le battant ou peigne d'un métier à tisser qui coopère avec les fils de chaíne et de trame pour serrer les duites les unes contre les autres, ou la lance passe-trame d'un métier sans navette.It goes without saying that the system according to the invention can be applied to any oscillating member of a textile machine mechanism, such as example the leaf or comb of a loom which cooperates with the warp and weft threads to clamp the picks together others, or the weft pass launcher of a shuttleless craft.
Par ailleurs on comprend que les ressorts hélicoïdaux 15 et 15' sont
susceptibles d'être remplacés par une lame à profil plat dont une extrémité
est fixée à l'une des branches de l'un au moins des leviers 3 tandis
que l'autre coopère avec un dispositif de réglage lié à la stucture
fixe.Furthermore it is understood that the
Claims (3)
- Mechanism for weaving machine, of the type comprising, for the alternative control of a yarn or a group of yarns, at least one member (7) which is positively animated by a desmodromic oscillating movement by means of a bar (5) connecting two levers (3, 3') for manoeuvring said member,
characterized in that the oscillating member (7) is associated with elastic means (15, 15') which act in antagonistic manner on said member (7), a connecting rod (12) articulated about a fixed pin (13) being controlled in displacement by said bar, while said elastic means (15, 15') exert on said connecting rod a return force which tends to return said connecting rod and said member into a substantially median position. - Mechanism according to Claim 1, characterized in that there are associated with the elastic means (15, 15') adjusting means (17, 17') arranged to allow the variation, on the one hand, of the intensity of the antagonistic return forces and, on the other hand, of the point of static equilibrium of the oscillating member.
- Mechanism according to either one of Claims 1 or 2, characterized in that the elastic means are in the form of two elastic assemblies (15, 15') arranged on either side of an element (12) connected thereto.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9306882A FR2705972B1 (en) | 1993-06-03 | 1993-06-03 | Damping device for weaving machine. |
FR9306882 | 1993-06-03 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0627512A1 EP0627512A1 (en) | 1994-12-07 |
EP0627512B1 EP0627512B1 (en) | 1996-12-11 |
EP0627512B2 true EP0627512B2 (en) | 2000-09-20 |
Family
ID=9447896
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94420160A Expired - Lifetime EP0627512B2 (en) | 1993-06-03 | 1994-06-03 | Damping device for looms |
Country Status (5)
Country | Link |
---|---|
US (1) | US5462093A (en) |
EP (1) | EP0627512B2 (en) |
JP (1) | JP3538451B2 (en) |
DE (1) | DE69401095D1 (en) |
FR (1) | FR2705972B1 (en) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE59409940D1 (en) * | 1994-09-06 | 2001-12-13 | Sulzer Textil Ag Rueti | Method and device for balancing power on a machine |
FR2734610B1 (en) * | 1995-05-24 | 1997-07-04 | Staubli Sa Ets | ADJUSTABLE CLIP FOR THE PIVOTING ASSEMBLY OF THE OSCILLATING ARMS OF AN ARMOR MECHANICS WITH THE DRIVING RODS OF THE DRAWING SYSTEM |
EP0870856A1 (en) * | 1997-04-09 | 1998-10-14 | Sulzer Rüti Ag | Drive for heald frame and loom with a drive for heald frame |
DE10260075B4 (en) * | 2002-12-19 | 2007-02-01 | Groz-Beckert Kg | Shaft frame and weaving shank for looms |
DE10341629B4 (en) * | 2003-09-10 | 2007-04-12 | Groz-Beckert Kg | Low vibration tray system |
BE1016217A5 (en) * | 2004-09-28 | 2006-05-02 | Wiele Michel Van De Nv | GAAPING DEVICE AND WEAVING MACHINE FITTED WITH SUCH GAAPING DEVICE. |
WO2008141657A1 (en) * | 2007-05-18 | 2008-11-27 | Sultex Ag | Warp shed-forming device |
CN101250785B (en) * | 2008-02-02 | 2011-05-11 | 韩通 | One-way boosting buffer mechanism for electronic jacquard opening mechanism |
JP5593833B2 (en) * | 2010-05-24 | 2014-09-24 | 株式会社豊田自動織機 | Electronic opening device |
CN104153109A (en) * | 2014-07-22 | 2014-11-19 | 扬中市金德纺织机械设备厂 | Connecting rod assembly of high-speed loom |
CN105908320B (en) * | 2016-06-12 | 2017-10-20 | 苏州易利耐机电科技有限公司 | A kind of heald frame static(al), balance of shaking force mechanism |
CN106868680B (en) * | 2017-04-07 | 2018-08-17 | 杨国惠 | A kind of tapping machine balancing heald frame static(al), inertia force |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE280802C (en) † | ||||
JPH0520183A (en) † | 1991-07-17 | 1993-01-29 | Fujitsu Ltd | Memory access control system |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH113529A (en) * | 1924-12-22 | 1926-01-16 | Charles Bilhartz | Loom for weaving a plurality of ribbons at the same time. |
CS154950B1 (en) * | 1971-07-02 | 1974-04-30 | ||
CH558435A (en) * | 1972-11-17 | 1975-01-31 | Grob & Co Ag | Loom shaft drive mechanism - has a shock absorber located in the drive shaft driven by eccentrics |
FR2476696A1 (en) * | 1980-02-21 | 1981-08-28 | Moessinger Albert | LOOM |
FR2505883A1 (en) * | 1981-05-12 | 1982-11-19 | Alsacienne Constr Meca | DEVICE FOR CONTROLLING THE HOLDER FRAMES FOR WEAVING MACHINES |
IT8322543A0 (en) * | 1983-08-12 | 1983-08-12 | Fimtessile | LINKAGE FOR CONTROL OF HEDDLER FRAMES IN NEGATIVE WEAVING MACHINES. |
CH679869A5 (en) * | 1988-10-04 | 1992-04-30 | Sulzer Ag | |
GB8920361D0 (en) * | 1989-09-08 | 1989-10-25 | Jaguar Cars | Valve mechanisms |
US5195385A (en) * | 1991-10-28 | 1993-03-23 | Jerome A. Johnson | Free ranging bi-directional hydraulic dumping mechanism |
-
1993
- 1993-06-03 FR FR9306882A patent/FR2705972B1/en not_active Expired - Fee Related
-
1994
- 1994-05-31 US US08/251,257 patent/US5462093A/en not_active Expired - Fee Related
- 1994-06-01 JP JP12039394A patent/JP3538451B2/en not_active Expired - Lifetime
- 1994-06-03 EP EP94420160A patent/EP0627512B2/en not_active Expired - Lifetime
- 1994-06-03 DE DE69401095T patent/DE69401095D1/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE280802C (en) † | ||||
JPH0520183A (en) † | 1991-07-17 | 1993-01-29 | Fujitsu Ltd | Memory access control system |
Also Published As
Publication number | Publication date |
---|---|
JPH07133546A (en) | 1995-05-23 |
DE69401095D1 (en) | 1997-01-23 |
FR2705972A1 (en) | 1994-12-09 |
EP0627512B1 (en) | 1996-12-11 |
EP0627512A1 (en) | 1994-12-07 |
FR2705972B1 (en) | 1995-07-21 |
US5462093A (en) | 1995-10-31 |
JP3538451B2 (en) | 2004-06-14 |
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