FR2862772A1

FR2862772A1 - Control units simultaneous activation device for pneumatic press, has activation unit moved in translation in two directions, and control units placed at end positions under action of deformable unit when former unit is in middle position

Info

Publication number: FR2862772A1
Application number: FR0313821A
Authority: FR
Inventors: Emmanuel Kervarec
Original assignee: Bucher Vaslin SA
Current assignee: Bucher Vaslin SA
Priority date: 2003-11-25
Filing date: 2003-11-25
Publication date: 2005-05-27
Anticipated expiration: 2023-11-25
Also published as: FR2862772B1; EP1536304A1

Abstract

The device has two control units (2, 2`) that are connected by an elastically deformable unit (4) stressing one unit towards the other. A single activation unit (5) is moved in translation in two directions (D1, D2) from a middle position. The control units are positioned at end positions under the action of the deformable unit, when the activation unit is positioned in its middle position. An Independent claim is also included for a pneumatic press.

Description

directions opposées à partir d'une position médiane, cette positionopposite directions from a median position, this position

médiane de l'organe d'actionnement autorisant des positions extrêmes prédéterminées des organes de commande sous l'action du moyen de sollicitation déformable élastiquement et un déplacement dudit organe median of the actuating member allowing predetermined extreme positions of the control members under the action of elastically deformable biasing means and a displacement of said member

d'actionnement dans l'une des deux directions précitées à partir de ladite position médiane entraînant un déplacement de l'un des deux organes de commande vers son autre position extrême, l'autre organe de commande demeurant dans sa position extrême prise lorsque l'organe d'actionnement est en position médiane, ledit déplacement s'effectuant avec déformation sous contrainte du moyen de sollicitation déformable élastiquement. actuating in one of the two aforementioned directions from said median position causing a displacement of one of the two control members to its other extreme position, the other control member remaining in its extreme position taken when the actuating member is in the middle position, said displacement being effected with deformation under stress of the elastically deformable biasing means.

L'invention sera mieux comprise, grâce à la description ci-après, qui se rapporte à des modes de réalisation préférés, donnés à titre d'exemples non limitatifs, et expliqués avec référence aux dessins schématiques annexés, dans lesquels: la figure 1 est une vue en perspective d'un ensemble de régulation intégrant un dispositif d'actionnement simultané de deux organes de commande selon un premier mode de réalisation de l'invention; les figures 2 à 4 sont des vues simplifiées en élévation frontale de l'ensemble de régulation de la figure 1, le dispositif d'actionnement étant dans trois états différents correspondant à trois positions différentes de l'organe d'actionnement (Fig. 2: position médiane; Fig. 3 et 4: positions extrêmes opposées) et des deux organes de commande, et les figures 5 et 6 sont des représentations schématiques simplifiées illustrant respectivement une variante du premier mode de réalisation et un second mode de réalisation de l'invention, tous deux en position médiane de l'organe d'actionnement. The invention will be better understood, thanks to the following description, which refers to preferred embodiments, given by way of non-limiting examples, and explained with reference to the appended diagrammatic drawings, in which: FIG. a perspective view of a control assembly incorporating a device for simultaneous actuation of two control members according to a first embodiment of the invention; Figures 2 to 4 are simplified views in front elevation of the control assembly of Figure 1, the actuating device being in three different states corresponding to three different positions of the actuating member (Figure 2: middle position, Fig. 3 and 4: opposite extreme positions) and the two control members, and Figs. 5 and 6 are simplified schematic representations respectively illustrating a variant of the first embodiment and a second embodiment of the invention. both in the middle position of the actuating member.

Les figures des dessins annexés montrent un dispositif d'actionnement 1 simultané de deux organes de commande 2 et 2', déplaçables chacun entre deux positions extrêmes (F2, 02; F2,, 02') par un mouvement de translation ou de pivotement sur ou autour d'un axe respectif 3, 3'. The figures of the appended drawings show a simultaneous actuating device 1 for two control members 2 and 2 ', each displaceable between two extreme positions (F2, 02; F2, 02') by translational or pivoting movement on or around a respective axis 3, 3 '.

Conformément à l'invention, les deux organes de commande 2 et 2' sont reliés physiquement par un moyen 4 déformable élastiquement, sollicitant les deux organes 2 et 2' l'un vers l'autre ou en écartement mutuel, et en ce que les positions des deux organes de commande 2 et 2' sont déterminés par l'intermédiaire d'un unique organe d'actionnement 5 pouvant être déplacé en translation ou en rotation dans deux directions D 1 et D2 opposées à partir d'une position médiane, cette position médiane de l'organe d'actionnement 5 autorisant des positions extrêmes prédéterminées F2, F2. des organes de commande 2 et 2' sous l'action du moyen de sollicitation déformable élastiquement 4 et un déplacement dudit organe d'actionnement 5 dans l'une des deux directions Dl et D2 précitées à partir de ladite position médiane entraînant un déplacement de l'un des deux organes de commande 2; 2' vers son autre position extrême 02; 02., l'autre organe de commande 2' ; 2 demeurant dans sa position extrême F2, F2, prise lorsque l'organe d'actionnement 5 est en position médiane, ledit déplacement s'effectuant avec déformation sous contrainte du moyen de sollicitation déformable élastiquement 4. According to the invention, the two control members 2 and 2 'are physically connected by a resiliently deformable means 4, urging the two members 2 and 2' towards each other or at a distance from one another, and that the positions of the two control members 2 and 2 'are determined by means of a single actuating member 5 being displaceable in translation or rotation in two opposite directions D 1 and D 2 from a median position, this middle position of the actuating member 5 allowing predetermined extreme positions F2, F2. control members 2 and 2 'under the action of the elastically deformable biasing means 4 and a displacement of said actuating member 5 in one of the two directions D1 and D2 above from said median position causing a displacement of the one of the two control members 2; 2 'to its other extreme position 02; 02., the other control member 2 '; 2 remaining in its extreme position F2, F2, taken when the actuating member 5 is in the middle position, said displacement being effected with strain deformation of the elastically deformable biasing means 4.

Préférentiellement, chacun des organes de commande 2, 2' présente un corps allongé 6 comportant un site de fixation 7 du moyen de sollicitation déformable élastiquement 4 et un site 8 d'engagement avec l'organe d'actionnement 5, venant en prise avec ce dernier avec faculté de déplacement relatif limité par rapport audit organe d'actionnement 5 dans l'une des deux directions de déplacement opposées Dl, D2 et entraîné par ce dernier dans l'autre des deux directions de déplacement D2, Dl. Preferably, each of the control members 2, 2 'has an elongated body 6 comprising a fixing site 7 of the resiliently deformable biasing means 4 and a site 8 of engagement with the actuating member 5, engaging with this last with limited relative displacement relative to said actuating member 5 in one of the two opposite directions of displacement D1, D2 and driven by the latter in the other of the two directions of displacement D2, D1.

Comme indiqué précédemment, chaque organe de commande 1, 2' pourra être soit monté en rotation au niveau de l'une de ses extrémités (Fig. 1 à 6), soit guidé en translation dans les directions Dl, D2 (non représenté). As indicated above, each control member 1, 2 'may be rotatably mounted at one of its ends (Figures 1 to 6), or guided in translation in the directions D1, D2 (not shown).

Selon une variante de réalisation pratique avantageuse, les organes de commande 2, 2' consistent en des organes du type levier, biellette ou analogue, montés à rotation sur un axe de pivotement respectif 3, 3' au niveau de l'une de leurs extrémités. According to an advantageous practical variant embodiment, the control members 2, 2 'consist of members of the lever, rod or the like type, rotatably mounted on a respective pivot axis 3, 3' at one of their ends. .

Conformément à une première variante de réalisation, représentée sur les figures 1 à 4 et 6 des dessins annexés, le moyen de sollicitation déformable élastiquement 4 travaille en compression et sollicite les deux organes de commande 2 et 2' vers des positions écartées l'une de l'autre ou à distance l'un de l'autre. According to a first variant embodiment, represented in FIGS. 1 to 4 and 6 of the appended drawings, the resiliently deformable biasing means 4 operates in compression and urges the two control members 2 and 2 'towards positions that are separated from each other. the other or at a distance from each other.

Conformément à une seconde variante de réalisation, le moyen de sollicitation déformable élastiquement 4 travaille en étirement et sollicite les deux organes de commande 2 et 2' l'un vers l'autre ou vers des positions rapprochées l'une de l'autre (voir figure 5). According to a second variant embodiment, the resiliently deformable biasing means 4 is stretched and biases the two control members 2 and 2 'towards each other or towards positions close to each other (see FIG. Figure 5).

Selon un premier mode de réalisation de l'invention, ressortant des figures 1 à 5 des dessins annexés, l'organe d'actionnement 5 consiste en une pièce allongée, préférentiellement plate et plane, pouvant être déplacée en translation, selon une course déterminée, dans la direction longitudinale de ladite pièce, cette dernière comportant en outre deux fentes ou orifices traversants de forme oblongue rectiligne 5' et 5", orienté(e)s selon ladite direction longitudinale et recevant chacun(e), avec faculté de coulissement limité, un doigt ou ergot 8 formant site d'engagement d'un des deux organes de commande 2 et 2'. According to a first embodiment of the invention, apparent from Figures 1 to 5 of the accompanying drawings, the actuating member 5 consists of an elongate piece, preferably flat and flat, which can be displaced in translation, according to a determined stroke, in the longitudinal direction of said workpiece, said workpiece further comprising two oblong straight-form through-slots 5 'and 5' ', oriented in said longitudinal direction and each receiving, with limited sliding capability, a finger or lug 8 forming the engagement site of one of the two control members 2 and 2 '.

Selon un second mode de réalisation de l'invention, ressortant de la figure 6 des dessins annexés, l'organe d'actionnement 5 consiste en une pièce en forme de plaque, préférentiellement plate et plane, pouvant être déplacée en rotation, selon une course angulaire déterminée, ladite pièce comportant en outre deux fentes ou orifices traversants de forme oblongue incurvé(e)s 5 et 5", porté(e)s par des axes de cercle dont le centre est confondu avec le centre de rotation C de la pièce en forme de plaque 5, chacune desdites fentes ou orifices incurvé(e)s 8 recevant, avec faculté de coulissement, un doigt ou ergot 8 formant site d'engagement d'un des deux organes de commande 2 et 2'. According to a second embodiment of the invention, as shown in FIG. 6 of the accompanying drawings, the actuating member 5 consists of a plate-shaped part, preferably flat and flat, which can be displaced in rotation, according to a stroke. defined angle, said piece further comprising two slots or orifices of curved oblong shape (e) 5 and 5 ", carried (e) s by axes of a circle whose center is coincident with the center of rotation C of the piece plate-shaped 5, each of said slots or curved orifices 8 receiving, with sliding ability, a finger or lug 8 forming an engagement site of one of the two control members 2 and 2 '.

Afin de pouvoir contrôler automatiquement, surveiller et/ou fournir une information relative à la position de l'organe d'actionnement 5, et donc relative aux positions des organes de commande 2 et 2', le dispositif 1 peut comporter un capteur de position 9 apte à détecter la position en translation ou en rotation de l'organe d'actionnement 5. In order to be able to automatically control, monitor and / or provide information relating to the position of the actuating member 5, and thus relating to the positions of the control members 2 and 2 ', the device 1 may comprise a position sensor 9 adapted to detect the position in translation or in rotation of the actuating member 5.

Ledit capteur 9 pourra bien entendu fournir une information continue et détaillée sur chaque position possible de l'organe 25 d'actionnement 5. Said sensor 9 can of course provide continuous and detailed information on each possible position of the actuating member 5.

Toutefois, selon une variante avantageuse de l'invention, simplifiant le contrôle du dispositif 1 réduisant son coût et augmentant sa fiabilité, le capteur de position 9 détecte uniquement la position médiane de l'organe d'actionnement 5, par exemple en détectant la présence ou la position d'une marque ou d'une empreinte d'indexation 10 de ce dernier, les positions extrêmes F2 et F2, prises respectivement par les organes de commande 2 et 2' lorsque l'organe d'actionnement 5 est en position médiane étant définies par des butées respectives 11 et 11'. However, according to an advantageous variant of the invention, simplifying the control of the device 1 reducing its cost and increasing its reliability, the position sensor 9 only detects the median position of the actuating member 5, for example by detecting the presence or the position of a mark or an indexing imprint 10 of the latter, the extreme positions F2 and F2, taken respectively by the control members 2 and 2 'when the actuating member 5 is in the middle position being defined by respective stops 11 and 11 '.

En accord avec une variante de réalisation pratique tout à fait préféré de l'invention, et comme le montrent les figures 1 à 4 des dessins annexés, les deux organes de commande 2 et 2' consistant en des biellettes montées pivotantes au niveau de l'une de leurs extrémités et solidaires à ce niveau chacune d'un axe de commande 3, 3' respectif, le moyen de sollicitation à déformation élastique 4 consiste en un vérin pneumatique ou à gaz tendant à écarter ou à maintenir à distance les extrémités libres desdites biellettes 2 et 2' l'une de l'autre et l'organe d'actionnement 5 consiste en une plaque ou tige allongée pourvue de deux fentes 5' et 5". In accordance with a very preferred embodiment of the invention, and as shown in FIGS. 1 to 4 of the accompanying drawings, the two control members 2 and 2 'consisting of rods pivotally mounted at the level of the one of their ends and integral at this level each of a respective control shaft 3, 3 ', the resilient deformation biasing means 4 consists of a pneumatic cylinder or gas tending to distance or maintain at a distance the free ends of said rods 2 and 2 'of each other and the actuating member 5 consists of an elongate plate or rod provided with two slots 5' and 5 ".

Chacune de ces fentes reçoit avec faculté de coulissement limité un ergot d'entraînement 8 solidaire respectivement de l'une des deux biellettes 2, 2', ladite plaque ou tige 5 pouvant être déplacé(e) en translation par un actionneur linéaire 12, tel qu'un vérin hydraulique, pneumatique ou électrique, et entraînant dans un mouvement de pivotement une ou les deux biellettes 2, 2' lorsque l'ergot ou les ergots d'entraînement 8 vien(nen) t en butée contre l'extrémité de leur fente correspondante 5', 5" opposée à la direction de déplacement en translation Dl ou D2. Each of these slots receives, with the possibility of limited sliding, a driving lug 8 secured respectively to one of the two links 2, 2 ', said plate or rod 5 being displaceable (e) in translation by a linear actuator 12, such as a hydraulic cylinder, pneumatic or electric, and driving in a pivoting movement one or both rods 2, 2 'when the lug or the driving pins 8 come abut against the end of their corresponding slot 5 ', 5 "opposite the direction of translational movement D1 or D2.

Pour permettre une installation aisée du dispositif d'actionnement 1 ou un montage facile de ce dernier sur une installation, un poste ou un appareil, il peut être avantageusement prévu que les deux organes de commande 2, 2', l'organe d'actionnement 5, le moyen déformable de sollicitation élastique 4 et, le cas échéant, le capteur de position 9 sont montés sur une platine support 13, elle-même fixé sur le support considéré. To allow easy installation of the actuating device 1 or easy mounting of the latter on an installation, a station or an apparatus, it can be advantageously provided that the two control members 2, 2 ', the actuating member 5, the deformable elastic biasing means 4 and, if appropriate, the position sensor 9 are mounted on a support plate 13, itself fixed on the support considered.

Préférentiellement, ledit dispositif de régulation 1 trouvera une application dans le domaine du contrôle de la circulation de fluide dans des circuits ou des conduits, les deux organes de commande 2 et 2' consistant alors chacun en un organe de commande d'un moyen de régulation V1, V2, par exemple d'une vanne., en étant solidaire de l'axe de commande 3, 3' de l'organe de régulation pivotant de chacune desdites vannes V1 et V2. Preferably, said regulating device 1 will find an application in the field of controlling the circulation of fluid in circuits or ducts, the two control members 2 and 2 'then each consisting of a control member of a control means V1, V2, for example of a valve, being integral with the control shaft 3, 3 'of the pivoting regulating member of each of said valves V1 and V2.

L'invention concerne également un ensemble de régulation à deux vannes V1 et V2 susceptible de prendre l'un des trois états combinés suivants: V1 et V2 ouvertes ou fermées, V1 fermée et V2 ouverte et V2 fermée et V1 ouverte. The invention also relates to a two-valve control assembly V1 and V2 capable of taking one of the following three combined states: V1 and V2 open or closed, V1 closed and V2 open and V2 closed and V1 open.

Cet ensemble comprend un dispositif d'actionnement simultané 1 tel que décrit ci-dessus, chacun des deux organes de commande 2 et 2' étant associé à l'une des deux vannes V1 et V2, en étant par exemple solidaire de leur axe de commande 3, 3' respectif. This assembly comprises a simultaneous actuating device 1 as described above, each of the two control members 2 and 2 'being associated with one of the two valves V1 and V2, for example being integral with their control axis. 3, 3 'respectively.

Enfin, l'invention a également pour objet un pressoir pneumatique comprenant au moins deux circuits ou portions de circuit de circulation de fluide, intégrant chacun(e) un organe de régulation, pressoir caractérisé en ce qu'il comprend un ensemble de régulation tel que mentionné ci-dessus. Finally, the subject of the invention is also a pneumatic press comprising at least two circuits or portions of a fluid circulation circuit, each including (e) a regulating member, a press characterized in that it comprises a regulation assembly such that mentioned above.

Bien entendu, l'invention n'est pas limitée aux modes de réalisation décrits et représentés aux dessins annexés. Des modifications restent possibles, notamment du point de vue de la constitution des divers éléments ou par substitution d'équivalents techniques, sans sortir pour autant du domaine de protection de l'invention. Of course, the invention is not limited to the embodiments described and shown in the accompanying drawings. Modifications are possible, particularly from the point of view of the constitution of the various elements or by substitution of technical equivalents, without departing from the scope of protection of the invention.

Claims

7 CLAIMS

1. Device for simultaneous actuation of two control members, each movable between two extreme positions, by a translation movement or pivoting on or around a respective axis; characterized in that the two control members (2 and 2 ') are physically connected by resiliently deformable means (4), biasing the two members (2 and 2') towards each other or at a distance from one another, and in that the positions of the two control members (2 and 2 ') are determined by means of a single actuating member (5) displaceable in translation or rotation in two opposite directions (D1 and D2) from a median position, this median position of the actuating member (5) allowing predetermined extreme positions (F2, F2.) of the control members (2 and 2 ') under the action of the biasing means elastically deformable (4) and a displacement of said actuating member (5) in one of the two directions (D1 and D2) above from said median position causing a displacement of one of the two control members (2; 2 ') to its other end position (02; 02), the other control member (2 '; 2) remaining in its extreme position (F2, F2) taken when the actuating member (5) is in the middle position, said displacement being effected with strain deformation of the resiliently deformable biasing means (4) .

2. Device according to claim 1, characterized in that each of the control members (2, 2 ') has an elongated body (6) having a fixing site (7) of the elastically deformable biasing means (4) and a site (8) engaging with the actuating member (5), engaging with the latter with limited relative displacement relative to said actuating member (5) in one of the two opposite directions of movement ( D1, D2) and driven by the latter in the other of the two directions of displacement (D2, D1).

3. Device according to any one of claims 1 and 2, characterized in that the control members (2, 2 ') consist of members of the lever type, rod or the like, rotatably mounted on a respective pivot axis ( 3, 3 ') at one of their ends.

4. Device according to any one of claims 1 to 3, characterized in that the resiliently deformable biasing means (4) operates in compression and urges the two control members (2 and 2 ') to positions spaced apart. from each other or at a distance from each other.

5. Device according to any one of claims 1 to 3, characterized in that the resiliently deformable biasing means (4) works in stretching and urges the two control members (2 and 2 ') towards one another or towards positions close to each other.

6. Device according to any one of claims 1 to 5, characterized in that the actuating member (5) consists of an elongate piece, preferably flat and flat, which can be displaced in translation, according to a determined stroke, in the longitudinal direction of said piece, the latter further comprising two oblong oblong slots or orifices (5 'and 5 ") oriented in said longitudinal direction and each receiving (e), with limited sliding ability , a finger or pin (8) forming an engagement site of one of the two control members (2 and 2 ').

7. Device according to any one of claims 1 to 5, characterized in that the actuating member (5) consists of a plate-shaped part, preferably flat and flat, can be moved in rotation, according to a race defined angle, said piece further comprising two slots or orifices of oblong curved shape (e) s (5 and 5 "), carried (e) s by axes of a circle whose center is coincident with the center of rotation (C ) of the plate-shaped part (5), each of said curved slots or orifices (8) slidably receiving a finger or pin (8) forming a site of engagement of one of the two members control (2 and 2 ').

8. Device according to any one of claims 1 to 7, characterized in that it comprises a position sensor (9) adapted to detect the position in translation or rotation of the actuating member (5).

Device according to Claim 8, characterized in that the position sensor (9) detects only the median position of the actuating member (5), for example by detecting the presence or position of a mark or d an indexing imprint (10) of the latter, the extreme positions (F2 and F2) taken respectively by the control members (2 and 2 ') when the actuating member (5) is in the middle position being defined by respective stops (11 and 11 ').

10. Device according to any one of claims 1 to 9, characterized in that the two control members (2 and 2 ') consist of rods pivotally mounted at one of their ends and secured to this level each. a respective control shaft (3, 3 '), in that the elastically deformable biasing means (4) consists of a pneumatic or gas cylinder tending to distance or hold the free ends of said links (2 and 2 ') from each other and in that the actuating member (5) consists of an elongated plate or rod provided with two slots (5' and 5 ") each of which receives with limited sliding ability a driving pin (8) integral respectively with one of the two links (2, 2 '), said plate or rod (5) being displaceable (e) in translation by a linear actuator (12), such as a hydraulic, pneumatic or electric cylinder, and driving in a pivoting movement a or the two links (2, 2 ') when the lug or the driving lugs (8) abut against the end of their corresponding slot (5', 5 ") opposite to the direction of displacement in translation ( D1 or D2).

11. Device according to any one of claims 1 to 10, characterized in that the two control members (2, 2 '), the actuating member (5), the deformable elastic biasing means (4) and , if appropriate, the position sensor (9) are mounted on a support plate (13) and in that the two control members (2 and 2 ') each consist of a control member of a control means ( V1, V2), for example of a valve.

12. A two-valve regulating assembly (V 1 and V 2) capable of taking one of the following three combined states: V1 and V2 open or closed, V1 closed and V2 open and V2 closed and V1 open, characterized in that it comprises a simultaneous actuating device (1) according to any one of claims 1 to 11, each of the two control members (2 and 2 ') being associated with one of the two valves (V 1 and V 2), by being for example integral with their respective control shaft (3, 3 ').

13. Pneumatic press comprising at least two circuits or portions of a fluid circulation circuit, each incorporating (e) a regulating member, press characterized in that it comprises a regulation assembly according to claim 12.