WO2007034053A1 - Damping stop for stopping a mobile load - Google Patents

Damping stop for stopping a mobile load Download PDF

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Publication number
WO2007034053A1
WO2007034053A1 PCT/FR2006/002120 FR2006002120W WO2007034053A1 WO 2007034053 A1 WO2007034053 A1 WO 2007034053A1 FR 2006002120 W FR2006002120 W FR 2006002120W WO 2007034053 A1 WO2007034053 A1 WO 2007034053A1
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WO
WIPO (PCT)
Prior art keywords
abutment
damping
stop
conveyor belt
switching
Prior art date
Application number
PCT/FR2006/002120
Other languages
French (fr)
Inventor
Didier Dailler
Alain Teillon
Original Assignee
Tlm
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 Tlm filed Critical Tlm
Priority to DE112006002476.0T priority Critical patent/DE112006002476B4/en
Publication of WO2007034053A1 publication Critical patent/WO2007034053A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
    • B65G47/88—Separating or stopping elements, e.g. fingers
    • B65G47/8807—Separating or stopping elements, e.g. fingers with one stop
    • B65G47/883—Fixed stop
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2205/00—Stopping elements used in conveyors to stop articles or arrays of articles
    • B65G2205/06—Cushioned or damping stop devices, e.g. using springs or other mechanical actions

Definitions

  • the present invention relates to a damping stop for stopping a moving load.
  • such an abutment generally comprises an abutment member capable of being damped from an initial abutment position to an end abutment position, and connected to a damping device having at least one abutment damping piston movable in a damping cylinder.
  • Such an installation generally comprises a first conveyor belt and a second conveyor belt forming an angle of the change of direction with the first conveyor belt.
  • Each of these two conveyor belts is for example driven by pneumatic means such as a hose connected alternately to a source of air under pressure and in the open air and whose diameter may vary between a minimum value, when is at the exhaust in the open air, in which it does not exert pressure on its conveyor belt, and a higher value in which it exerts a pressure on the conveyor belt and applies it against the pallets in order to carry out their training.
  • a pipe feed control valve controls the supply of pressurized air to a pipe so as to inflate it so that the associated conveyor belt drives the pallet while the other pipe is at the same time. Exhaust not to exert pressure on its conveyor belt which does not therefore cause the pallet and facilitates the change of direction.
  • the present invention aims to avoid this disadvantage by providing a damping stop which allows, regardless of the initial speed or mass of the load in question, to position accurately and reproducibly at rest.
  • the subject of the invention is a stop as presented above and in which the impact of a load against the abutment member actuates a device for erasing the abutment which comprises means, in particular elastic means or magnetic drive translation in translation of the stop member to its end stop position.
  • the inventive idea is to equip the abutment with an erasing device that ensures that the damper piston is in all cases pushed to its end position, even in case of low force.
  • This arrangement ensures an indexing on a fixed stop of the positioning at the stop of the load in question.
  • the stop member may be associated with a switching device, in particular pneumatic, mechanical or electrical, designed to switch when the stop member reaches the end stop position.
  • this switching device comprises, for example, a connecting pin slidably mounted in the direction of abutment in a switching cylinder and having two sealing segments so as to form a switching chamber sealing and movable in the switching cylinder, and the switching cylinder has successively a first discharge hole located in a distal zone vis-à-vis the connection axis and connected to pneumatic means for driving a first conveyor belt of the conveyor system, a supply hole connected to a source of pressurized air and a second discharge hole connected to pneumatic means for driving a second conveyor belt forming an angle of the change of direction with the first conveyor belt, so that the feed hole and the second discharge hole open into the commutatio chamber n in the initial abutment position, and that the feed hole and the first discharge hole open into the switching chamber in the end stop position.
  • the stop then makes it possible to damp the impact of a pallet, to position it precisely on the conveyor belt to avoid an imbalance, and to automatically trigger the change of direction, once reached
  • the erasing device comprises a hook part mounted to move in translation in a longitudinal housing in the direction of abutment, the piece forming a hook. having a blocking ramp in an inactive position, corresponding to the initial abutment position, against a complementary shape rim of the housing, and a gripping finger integral with the abutment member is susceptible, following an impact against the body stop, to be driven in abutment against the hook forming part so as to disengage by sliding the locking ramp against its edge and to tilt the hook forming part in its housing in a gripping position of the gripping finger.
  • a flow control device is provided in the end zone of the damping cylinder, against which the damping piston rests in the end stop position, to ensure a resistance to the flow of fluid entering or exiting during the displacement of the damper piston so as to dampen the displacement of the latter.
  • Figure 1 is a longitudinal vertical sectional view of a damping abutment according to the invention in a first operating position.
  • Figure 2 is a sectional view along H-II of Figure 1.
  • Figure 3 is a view similar to Figure 1 in a second operating position of the stop.
  • Figure 4 is a view similar to Figure 2 in the second operating position.
  • Figure 5 is a view similar to Figures 2 and 4 in a third operating position.
  • Figure 6 is a view similar to Figures 1 and 3 in a fourth operating position of the stop.
  • Figure 7 is a view similar to Figures 2, 4 and 5 in the fourth operating position.
  • Figure 8 is a top view of a portion of a pallet conveying installation equipped with a damping stop according to the invention at a change of direction zone.
  • FIG. 9 is a view similar to Figure 8 of a portion of another pallet conveyor installation equipped with a damping stop according to the invention at a change of direction zone.
  • the damping stop for stopping a moving load 1, shown in FIG. 1 comprises a stop member 8 capable of being damped from an initial stop position (see FIG. 1) to a position end stop (see figure 6).
  • the abutment member 8 is connected to a damping device 9 comprising a damping piston 13 movable in a damping cylinder 14.
  • a flow regulator (not shown) is provided in the end zone of the damping cylinder 14 against which the damping piston 13 rests in the end stop position. This flow regulator ensures a resistance to the flow of air entering or exiting during the displacement of the damping piston 13 so as to dampen the displacement of the latter.
  • the abutment also comprises an erasing device 10 comprising a hook member 24 mounted to move in translation in a longitudinal housing 29 in the stop direction.
  • the hook part 24 comprises a locking ramp 27 provided for locking the hook piece 24 in an inactive position (see FIG. 2) corresponding to the initial abutment position, against a rim 26 of complementary shape to the housing 29, against which a spring 25 for returning the hook member 24 in the stop direction.
  • the abutment member 8 also comprises a gripping finger 19 provided to be hooked by a hook notch 28 of the hook piece 24.
  • the abutment member 8 is also associated with a switching device 11, here pneumatic, located below the damping device 9 and provided to switch when the abutment member 8 reaches the end stop position.
  • the switching device 11 comprises a connecting pin 16 connected to the abutment member 8 by a pin 15.
  • the connecting pin 16 is slidably mounted in the direction of abutment in a switching cylinder 18 and has two sealing segments 17a and 17b which delimit with the wall of the cylinder 18 a switching chamber 17 sealed and movable in the cylinder of switching 18.
  • FIG. 8 illustrates the application of this stop to a pallet conveyor installation 1, to understand the reason for being and the operation of the switching device.
  • the pallet conveying installation comprises a support frame 2 with means for supporting and guiding the pallets 1, as well as endless belts or chains 3, 4 driven continuously whose upper face bears against the face. lower pallets 1 or against rollers or rollers (not shown) on which the pallets 1 rest.
  • a first conveyor belt 3 forms an angle of the change of direction with a second conveyor belt 4 so that a pallet 1 can be simultaneously in contact with the two conveyor belts 3, 4.
  • the stop is placed in the zone of change of direction. direction and oriented in the direction of supply pallets 1 by the first conveyor belt 3 so as to dampen their arrival.
  • a longitudinal groove opens on the upper face of the support frame 2 under each conveyor belt 3, 4 and serves to accommodate a hose, made of synthetic material, rubber ... (not shown) which ensures the driving an associated conveyor belt 3 or
  • the switching cylinder 18 has a feed hole 20 connected to a source of pressurized air 12 (see FIG. 8).
  • the cylinder 18 has a first discharge hole 21 connected to the drive pipe of the first conveyor belt 3.
  • the feed hole 20 and the first discharge hole 21 open into the switching chamber 17 in the initial abutment position (see FIG. 2) and in all the intermediate positions (see FIGS. 3, 4, 5) between the initial and the initial positions. end stop.
  • the cylinder 18 also has a second discharge hole 22 situated in a zone distal to the connection axis 16 and connected to the drive pipe of the second conveyor belt 4.
  • the feed hole 20 and the second discharge hole 22 open into the switching chamber 17 in the end stop position (see FIG. 7).
  • the gripping finger 19 is driven into abutment and echoes the impact against a wall of the notch 28 of the hook piece 24, so that the hook member 24 tilts in its housing 29 in a gripping position of the gripping finger 19 (see Figure 4), by sliding the locking ramp 27 against its edge 26.
  • the switching chamber 17 is next the feed hole 20 and the first discharge hole 21 so that the drive pipe of the first conveyor belt 3 is inflated.
  • the spring 25 then drives the hook member 24 in translation in its housing 29 (see FIGS. 5 and 7), so that the stop member 8, by means of the gripping finger 19, is driven in translation towards its end. end stop position.
  • This arrangement makes it possible to damp the movement of the pallet 1 to accurately index the stop position of the pallet 1 on a fixed abutment B (see FIG. 6) so that the pallet 1 is well positioned and balanced to initiate its change. of management.
  • the switching chamber 17 although moving in parallel remains opposite the feed hole 20 and the first discharge hole 21. This is that when reaching the end stop position (see Figure 7) the switching chamber 17 comes to the second discharge hole 22 and escapes the first discharge hole 21.
  • the drive pipe of the first conveyor belt 3 is then exhausted and deflated while the drive pipe of the second conveyor belt 4 is supplied with pressurized air and inflates.
  • the first conveyor belt 3 no longer exerts friction on the pallet 1 and therefore does not drive the pallet 1 while the second conveyor belt 4 exerts friction on the pallet 1 and drives it in the new direction.
  • the erasing device 10 ensures that, before making the change of direction, the pallet 1 is correctly positioned on the second conveyor belt 4. And the deflation and inflating of the pipes take place simultaneously and automatically as soon as this position is reached.
  • the installation also comprises a contact 30 (see FIG. 8) disposed at the outlet of the zone of change of direction on the section of the second conveyor belt 4.
  • This contact 30 is intended to be actuated by a pallet 1 when the latter is driven out of the direction change zone by the belt 4. It triggers a return of the abutment to the initial abutment position in order to accommodate a new pallet 1 brought by the first conveyor belt 3.
  • FIG. 9 (on which the preceding reference numbers which are taken correspond to similar elements) illustrates an application of this stop to another pallet conveyor installation in which a first conveyor belt 5 forms a change of direction angle with and is disposed at a height substantially less than a second conveyor belt 6.
  • a pneumatic lifting device 7 arranged in the direction change zone is controlled by the switching device 11 of the stop so that, once the pallet 1 has stopped and correctly positioned by the stop, to raise the pallet 1 until it can be driven by the second conveyor belt 6 in the direction of destination.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Special Conveying (AREA)

Abstract

The invention concerns a stop comprising a stop element (8) capable of damping movement from an initial abutting position to a terminal abutting position, and connected to a damping device (9) having at least one damping piston mobile in a damping cylinder. The impact of a load (1) against the stop element (8) actuates a device (10) for retracting the stop which comprises means, in particular elastic or magnetic, for driving in translation the stop element towards its terminal abutting position. The invention is applicable to pallet transporting installations or the like.

Description

Butée amortissante destinée à l'arrêt d'une charge mobile Damping stop for stopping a moving load
La présente invention concerne une butée amortissante destinée à l'arrêt d'une charge mobile.The present invention relates to a damping stop for stopping a moving load.
De façon connue en soi, une telle butée comporte en général un organe de butée susceptible d'être déplacé de façon amortie d'une position initiale de butée à une position terminale de butée, et relié à un dispositif d'amortissement présentant au moins un piston amortisseur mobile dans un cylindre amortisseur.In a manner known per se, such an abutment generally comprises an abutment member capable of being damped from an initial abutment position to an end abutment position, and connected to a damping device having at least one abutment damping piston movable in a damping cylinder.
Dans certaines applications, en particulier dans une zone de changement de direction sur une installation de convoyage de palettes, il importe que le positionnement à l'arrêt de la charge considérée soit précis et constant quelles que soient la vitesse initiale ou la masse de la charge.In certain applications, particularly in a change of direction zone on a pallet conveying installation, it is important that the stopping position of the load in question is precise and constant regardless of the initial speed or the mass of the load. .
Une telle installation comporte généralement une première bande transporteuse et une seconde bande transporteuse formant un angle du changement de direction avec la première bande transporteuse. Chacune de ces deux bandes transporteuses est par exemple entraînée par des moyens pneumatiques tels qu'un tuyau souple relié alternativement à une source d'air sous pression et à l'air libre et dont le diamètre peut varier entre une valeur minimale, lorsqu'il est à l'échappement à l'air libre, dans laquelle il n'exerce pas de pression sur sa bande transporteuse, et une valeur supérieure dans laquelle il exerce une pression sur la bande transporteuse et applique celle-ci contre les palettes en vue de réaliser leur entraînement.Such an installation generally comprises a first conveyor belt and a second conveyor belt forming an angle of the change of direction with the first conveyor belt. Each of these two conveyor belts is for example driven by pneumatic means such as a hose connected alternately to a source of air under pressure and in the open air and whose diameter may vary between a minimum value, when is at the exhaust in the open air, in which it does not exert pressure on its conveyor belt, and a higher value in which it exerts a pressure on the conveyor belt and applies it against the pallets in order to carry out their training.
Un distributeur de commande de l'alimentation des tuyaux commande l'alimentation en air sous pression d'un tuyau de manière à le gonfler pour que la bande transporteuse qui lui est associée entraîne la palette, tandis que l'autre tuyau est à l'échappement pour ne pas exercer de pression sur sa bande transporteuse qui n'entraîne donc pas la palette et facilite le changement de direction.A pipe feed control valve controls the supply of pressurized air to a pipe so as to inflate it so that the associated conveyor belt drives the pallet while the other pipe is at the same time. Exhaust not to exert pressure on its conveyor belt which does not therefore cause the pallet and facilitates the change of direction.
Avec un tel dispositif, il convient de positionner précisément la palette avant d'opérer le changement de direction, sinon la palette risque d'être déséquilibrée durant le convoyage.With such a device, it is necessary to precisely position the pallet before making the change of direction, otherwise the pallet may be unbalanced during conveying.
La présente invention vise à éviter cet inconvénient en fournissant une butée amortissante qui permette, quelles que soient la vitesse initiale ou la masse de la charge considérée, de la positionner de façon précise et reproductible à l'arrêt. A cet effet, l'invention a pour objet une butée telle que présentée ci- dessus et dans laquelle l'impact d'une charge contre l'organe de butée actionne un dispositif d'effacement de la butée qui comporte des moyens, notamment élastiques ou magnétiques, d'entraînement en translation de l'organe de butée vers sa position terminale de butée.The present invention aims to avoid this disadvantage by providing a damping stop which allows, regardless of the initial speed or mass of the load in question, to position accurately and reproducibly at rest. For this purpose, the subject of the invention is a stop as presented above and in which the impact of a load against the abutment member actuates a device for erasing the abutment which comprises means, in particular elastic means or magnetic drive translation in translation of the stop member to its end stop position.
Ainsi, l'idée inventive consiste à équiper la butée d'un dispositif d'effacement qui garantit que le piston amortisseur est dans tous les cas poussé jusqu'à sa position terminale, même en cas de faible force. Cette disposition assure une indexation sur une butée fixe du positionnement à l'arrêt de la charge considérée.Thus, the inventive idea is to equip the abutment with an erasing device that ensures that the damper piston is in all cases pushed to its end position, even in case of low force. This arrangement ensures an indexing on a fixed stop of the positioning at the stop of the load in question.
L'organe de butée peut être associé à un dispositif de commutation, notamment pneumatique, mécanique ou électrique, prévu pour commuter lorsque l'organe de butée atteint la position terminale de butée.The stop member may be associated with a switching device, in particular pneumatic, mechanical or electrical, designed to switch when the stop member reaches the end stop position.
Appliqué à une installation de convoyage de palettes ou similaires, ce dispositif de commutation comporte par exemple un axe de liaison monté coulissant dans le sens de butée dans un cylindre de commutation et qui présente deux segments d'étanchéité de manière à former une chambre de commutation étanche et mobile dans le cylindre de commutation, et le cylindre de commutation présente successivement un premier trou de refoulement situé dans une zone distale vis-à-vis de l'axe de liaison et relié à des moyens pneumatiques d'entraînement d'une première bande transporteuse de l'installation de convoyage, un trou d'alimentation relié à une source d'air sous pression et un second trou de refoulement relié à des moyens pneumatiques d'entraînement d'une seconde bande transporteuse formant un angle du changement de direction avec la première bande transporteuse, de sorte que le trou d'alimentation et le second trou de refoulement débouchent dans la chambre de commutation en position initiale de butée, et que le trou d'alimentation et le premier trou de refoulement débouchent dans la chambre de commutation en position terminale de butée. La butée permet alors d'amortir l'impact d'une palette, de la positionner précisément sur la bande transporteuse pour éviter un déséquilibre, et de déclencher automatiquement le changement de direction, une fois atteinte la position terminale de butée.Applied to a conveyor system for pallets or the like, this switching device comprises, for example, a connecting pin slidably mounted in the direction of abutment in a switching cylinder and having two sealing segments so as to form a switching chamber sealing and movable in the switching cylinder, and the switching cylinder has successively a first discharge hole located in a distal zone vis-à-vis the connection axis and connected to pneumatic means for driving a first conveyor belt of the conveyor system, a supply hole connected to a source of pressurized air and a second discharge hole connected to pneumatic means for driving a second conveyor belt forming an angle of the change of direction with the first conveyor belt, so that the feed hole and the second discharge hole open into the commutatio chamber n in the initial abutment position, and that the feed hole and the first discharge hole open into the switching chamber in the end stop position. The stop then makes it possible to damp the impact of a pallet, to position it precisely on the conveyor belt to avoid an imbalance, and to automatically trigger the change of direction, once reached the end stop position.
Dans une forme de réalisation envisageable, le dispositif d'effacement comporte une pièce formant crochet montée mobile en translation dans un logement longitudinal dans le sens de butée, la pièce formant crochet comportant une rampe de blocage dans une position inactive, correspondant à la position initiale de butée, contre une bordure de forme complémentaire du logement, et un doigt de préhension solidaire de l'organe de butée est susceptible, suite à un impact contre l'organe de butée, d'être entraîné en butée contre la pièce formant crochet de manière à désolidariser en faisant glisser la rampe de blocage contre sa bordure et à faire basculer la pièce formant crochet dans son logement dans une position d'accrochage du doigt de préhension.In one conceivable embodiment, the erasing device comprises a hook part mounted to move in translation in a longitudinal housing in the direction of abutment, the piece forming a hook. having a blocking ramp in an inactive position, corresponding to the initial abutment position, against a complementary shape rim of the housing, and a gripping finger integral with the abutment member is susceptible, following an impact against the body stop, to be driven in abutment against the hook forming part so as to disengage by sliding the locking ramp against its edge and to tilt the hook forming part in its housing in a gripping position of the gripping finger.
De manière avantageuse, un dispositif de régulation de débit est prévu dans la zone terminale du cylindre amortisseur, contre laquelle le piston amortisseur repose dans la position terminale de butée, pour assurer une résistance à l'écoulement de fluide entrant ou sortant lors du déplacement du piston amortisseur de manière à amortir le déplacement de ce dernier.Advantageously, a flow control device is provided in the end zone of the damping cylinder, against which the damping piston rests in the end stop position, to ensure a resistance to the flow of fluid entering or exiting during the displacement of the damper piston so as to dampen the displacement of the latter.
De toute façon, l'invention sera bien comprise, à l'aide de la description qui suit, en référence au dessin schématique annexé représentant, à titre d'exemple non limitatif, une forme d'exécution de cette butée amortissante.Anyway, the invention will be better understood, with the aid of the description which follows, with reference to the attached schematic drawing showing, by way of non-limiting example, a form of execution of this damping stop.
La figure 1 est une vue en coupe verticale longitudinale d'une butée amortissante selon l'invention dans une première position de fonctionnement. La figure 2 est une vue en coupe selon H-Il de la figure 1.Figure 1 is a longitudinal vertical sectional view of a damping abutment according to the invention in a first operating position. Figure 2 is a sectional view along H-II of Figure 1.
La figure 3 est une vue analogue à la figure 1 dans une deuxième position de fonctionnement de la butée.Figure 3 is a view similar to Figure 1 in a second operating position of the stop.
La figure 4 est une vue analogue à la figure 2 dans la deuxième position de fonctionnement. La figure 5 est une vue analogue aux figures 2 et 4 dans une troisième position de fonctionnement.Figure 4 is a view similar to Figure 2 in the second operating position. Figure 5 is a view similar to Figures 2 and 4 in a third operating position.
La figure 6 est une vue analogue aux figures 1 et 3 dans une quatrième position de fonctionnement de la butée.Figure 6 is a view similar to Figures 1 and 3 in a fourth operating position of the stop.
La figure 7 est une vue analogue aux figures 2, 4 et 5 dans la quatrième position de fonctionnement.Figure 7 is a view similar to Figures 2, 4 and 5 in the fourth operating position.
La figure 8 est une vue de dessus d'une partie d'une installation de convoyage de palettes équipée d'une butée amortissante selon l'invention au niveau d'une zone de changement de direction.Figure 8 is a top view of a portion of a pallet conveying installation equipped with a damping stop according to the invention at a change of direction zone.
La figure 9 est une vue analogue à la figure 8 d'une partie d'une autre installation de convoyage de palettes équipée d'une butée amortissante selon l'invention au niveau d'une zone de changement de direction. La butée amortissante destinée à l'arrêt d'une charge mobile 1 , représentée sur la figure 1 , comporte un organe de butée 8 susceptible d'être déplacé de façon amortie d'une position initiale de butée (voir figure 1) à une position terminale de butée (voir figure 6). L'organe de butée 8 est relié à un dispositif d'amortissement 9 comprenant un piston amortisseur 13 mobile dans un cylindre amortisseur 14.Figure 9 is a view similar to Figure 8 of a portion of another pallet conveyor installation equipped with a damping stop according to the invention at a change of direction zone. The damping stop for stopping a moving load 1, shown in FIG. 1, comprises a stop member 8 capable of being damped from an initial stop position (see FIG. 1) to a position end stop (see figure 6). The abutment member 8 is connected to a damping device 9 comprising a damping piston 13 movable in a damping cylinder 14.
Un régulateur de débit (non représenté) est prévu dans la zone terminale du cylindre amortisseur 14 contre laquelle le piston amortisseur 13 repose dans la position terminale de butée. Ce régulateur de débit assure une résistance à l'écoulement d'air entrant ou sortant lors du déplacement du piston amortisseur 13 de manière à amortir le déplacement de ce dernier.A flow regulator (not shown) is provided in the end zone of the damping cylinder 14 against which the damping piston 13 rests in the end stop position. This flow regulator ensures a resistance to the flow of air entering or exiting during the displacement of the damping piston 13 so as to dampen the displacement of the latter.
La butée comporte également un dispositif d'effacement 10 comportant une pièce formant crochet 24 montée mobile en translation dans un logement 29 longitudinal dans le sens de butée. La pièce formant crochet 24 comporte une rampe de blocage 27 prévue pour bloquer la pièce formant crochet 24 dans une position inactive (voir figure 2) correspondant à la position initiale de butée, contre une bordure 26 de forme complémentaire du logement 29, à rencontre d'un ressort 25 de rappel de la pièce formant crochet 24 dans le sens de butée. L'organe de butée 8 comporte aussi un doigt de préhension 19 prévu pour être accroché par une encoche en crochet 28 de la pièce formant crochet 24.The abutment also comprises an erasing device 10 comprising a hook member 24 mounted to move in translation in a longitudinal housing 29 in the stop direction. The hook part 24 comprises a locking ramp 27 provided for locking the hook piece 24 in an inactive position (see FIG. 2) corresponding to the initial abutment position, against a rim 26 of complementary shape to the housing 29, against which a spring 25 for returning the hook member 24 in the stop direction. The abutment member 8 also comprises a gripping finger 19 provided to be hooked by a hook notch 28 of the hook piece 24.
L'organe de butée 8 est également associé à un dispositif de commutation 11 , ici pneumatique, situé en dessous du dispositif d'amortissement 9 et prévu pour commuter lorsque l'organe de butée 8 atteint la position terminale de butée.The abutment member 8 is also associated with a switching device 11, here pneumatic, located below the damping device 9 and provided to switch when the abutment member 8 reaches the end stop position.
Le dispositif de commutation 11 comporte un axe de liaison 16 relié à l'organe de butée 8 par une goupille 15.The switching device 11 comprises a connecting pin 16 connected to the abutment member 8 by a pin 15.
L'axe de liaison 16 est monté coulissant dans le sens de butée dans un cylindre de commutation 18 et présente deux segments d'étanchéité 17a et 17b qui délimitent avec la paroi du cylindre 18 une chambre de commutation 17 étanche et mobile dans le cylindre de commutation 18.The connecting pin 16 is slidably mounted in the direction of abutment in a switching cylinder 18 and has two sealing segments 17a and 17b which delimit with the wall of the cylinder 18 a switching chamber 17 sealed and movable in the cylinder of switching 18.
Dans la suite de cette présentation, il est utile de se reporter parallèlement à la figure 8, qui illustre l'application de cette butée à une installation de convoyage de palettes 1 , pour comprendre la raison d'être et le fonctionnement du dispositif de commutation 11. L'installation de convoyage de palettes comprend un bâti de support 2 avec des moyens de support et de guidage des palettes 1 , ainsi que des bandes ou des chaînes sans fin 3, 4 entraînées en continu dont la face supérieure est en appui contre la face inférieure des palettes 1 ou contre des rouleaux ou galets (non représentés) sur lesquels reposent les palettes 1.In the remainder of this presentation, it is useful to refer to FIG. 8, which illustrates the application of this stop to a pallet conveyor installation 1, to understand the reason for being and the operation of the switching device. 11. The pallet conveying installation comprises a support frame 2 with means for supporting and guiding the pallets 1, as well as endless belts or chains 3, 4 driven continuously whose upper face bears against the face. lower pallets 1 or against rollers or rollers (not shown) on which the pallets 1 rest.
Une première bande transporteuse 3 forme un angle du changement de direction avec une seconde bande transporteuse 4 de telle sorte qu'une palette 1 puisse se trouve simultanément au contact des deux bandes transporteuses 3, 4. La butée est placée dans la zone de changement de direction et orientée dans la direction d'amenée des palettes 1 par la première bande transporteuse 3 de manière à amortir leur arrivée.A first conveyor belt 3 forms an angle of the change of direction with a second conveyor belt 4 so that a pallet 1 can be simultaneously in contact with the two conveyor belts 3, 4. The stop is placed in the zone of change of direction. direction and oriented in the direction of supply pallets 1 by the first conveyor belt 3 so as to dampen their arrival.
Une gorge longitudinale (non représentée) débouche en face supérieure du bâti de support 2 sous chaque bande transporteuse 3, 4 et sert au logement d'un tuyau souple, en matière synthétique, en caoutchouc... (non représenté) qui assure l'entraînement d'une bande transporteuse associée 3 ouA longitudinal groove (not shown) opens on the upper face of the support frame 2 under each conveyor belt 3, 4 and serves to accommodate a hose, made of synthetic material, rubber ... (not shown) which ensures the driving an associated conveyor belt 3 or
4.4.
Lorsqu'un tuyau est à l'échappement à l'air libre, son diamètre est minimal de sorte qu'il n'exerce pas de pression sur sa bande transporteuse 3, 4. En revanche, lorsque ce tuyau est sous pression, son diamètre est plus important et il exerce alors une pression sur la bande transporteuse 3, 4 qui lui est associée de sorte que cette dernière est appliquée contre les palettes 1 et les entraîne.When a pipe is exhausted in the open air, its diameter is minimal so that it does not exert pressure on its conveyor belt 3, 4. On the other hand, when this pipe is under pressure, its diameter is more important and it then exerts pressure on the conveyor belt 3, 4 associated with it so that the latter is applied against the pallets 1 and drives them.
Dans le dispositif de commutation 11 , le cylindre de commutation 18 possède un trou d'alimentation 20 relié à une source d'air sous pression 12 (voir figure 8).In the switching device 11, the switching cylinder 18 has a feed hole 20 connected to a source of pressurized air 12 (see FIG. 8).
Le cylindre 18 comporte un premier trou de refoulement 21 relié au tuyau d'entraînement de la première bande transporteuse 3.The cylinder 18 has a first discharge hole 21 connected to the drive pipe of the first conveyor belt 3.
Le trou d'alimentation 20 et le premier trou de refoulement 21 débouchent dans la chambre de commutation 17 en position initiale de butée (voir figure 2) et dans toutes les positions intermédiaires (voir figures 3, 4, 5) entre les positions initiale et terminale de butée.The feed hole 20 and the first discharge hole 21 open into the switching chamber 17 in the initial abutment position (see FIG. 2) and in all the intermediate positions (see FIGS. 3, 4, 5) between the initial and the initial positions. end stop.
Le cylindre 18 comporte aussi un second trou de refoulement 22 situé dans une zone distale vis-à-vis de l'axe de liaison 16 et relié au tuyau d'entraînement de la seconde bande transporteuse 4. Le trou d'alimentation 20 et le second trou de refoulement 22 débouchent dans la chambre de commutation 17 en position terminale de butée (voir figure 7).The cylinder 18 also has a second discharge hole 22 situated in a zone distal to the connection axis 16 and connected to the drive pipe of the second conveyor belt 4. The feed hole 20 and the second discharge hole 22 open into the switching chamber 17 in the end stop position (see FIG. 7).
Suite à un impact de la charge 1 contre l'organe de butée 8 (voir figure 3), le doigt de préhension 19 est entraîné en butée et répercute le choc contre une paroi de l'encoche 28 de la pièce formant crochet 24, de sorte que la pièce formant crochet 24 bascule dans son logement 29 dans une position d'accrochage du doigt de préhension 19 (voir figure 4), en faisant glisser la rampe de blocage 27 contre sa bordure 26. La chambre de commutation 17 vient en regard du trou d'alimentation 20 et du premier trou de refoulement 21 de sorte que le tuyau d'entraînement de la première bande transporteuse 3 est gonflé.Following an impact of the load 1 against the abutment member 8 (see FIG. 3), the gripping finger 19 is driven into abutment and echoes the impact against a wall of the notch 28 of the hook piece 24, so that the hook member 24 tilts in its housing 29 in a gripping position of the gripping finger 19 (see Figure 4), by sliding the locking ramp 27 against its edge 26. The switching chamber 17 is next the feed hole 20 and the first discharge hole 21 so that the drive pipe of the first conveyor belt 3 is inflated.
Le ressort 25 entraîne alors la pièce formant crochet 24 en translation dans son logement 29 (voir figures 5 et 7), de sorte que l'organe de butée 8, par l'intermédiaire du doigt de préhension 19, est entraîné en translation vers sa position terminale de butée.The spring 25 then drives the hook member 24 in translation in its housing 29 (see FIGS. 5 and 7), so that the stop member 8, by means of the gripping finger 19, is driven in translation towards its end. end stop position.
Cette disposition permet d'amortir le mouvement de la palette 1 d'indexer précisément la position d'arrêt de la palette 1 sur une butée fixe B (voir figure 6) de sorte que la palette 1 soit bien positionnée et équilibrée pour amorcer son changement de direction.This arrangement makes it possible to damp the movement of the pallet 1 to accurately index the stop position of the pallet 1 on a fixed abutment B (see FIG. 6) so that the pallet 1 is well positioned and balanced to initiate its change. of management.
Durant une majeure partie du déplacement de la pièce 24 dans son logement 29 vers sa position terminale de butée, la chambre de commutation 17 bien que se déplaçant parallèlement reste en regard du trou d'alimentation 20 et du premier trou de refoulement 21. Ce n'est que lorsqu'est atteinte la position terminale de butée (voir figure 7) que la chambre de commutation 17 vient au niveau du second trou de refoulement 22 et échappe au premier trou de refoulement 21.During a major part of the displacement of the part 24 in its housing 29 towards its end stop position, the switching chamber 17 although moving in parallel remains opposite the feed hole 20 and the first discharge hole 21. This is that when reaching the end stop position (see Figure 7) the switching chamber 17 comes to the second discharge hole 22 and escapes the first discharge hole 21.
Le tuyau d'entraînement de la première bande transporteuse 3 est alors à l'échappement et se dégonfle alors que le tuyau d'entraînement de la seconde bande transporteuse 4 est alimenté en air sous pression et se gonfle.The drive pipe of the first conveyor belt 3 is then exhausted and deflated while the drive pipe of the second conveyor belt 4 is supplied with pressurized air and inflates.
La première bande transporteuse 3 n'exerce plus de friction sur la palette 1 et n'entraîne donc pas la palette 1 tandis que la seconde bande transporteuse 4 exerce une friction sur la palette 1 et l'entraîne dans la nouvelle direction. Ainsi, le dispositif d'effacement 10 garantit que, avant d'opérer le changement de direction, la palette 1 soit correctement positionnée sur la seconde bande transporteuse 4. Et le dégonflage et le gonflage des tuyaux s'effectuent simultanément et automatiquement dès atteinte de cette position.The first conveyor belt 3 no longer exerts friction on the pallet 1 and therefore does not drive the pallet 1 while the second conveyor belt 4 exerts friction on the pallet 1 and drives it in the new direction. Thus, the erasing device 10 ensures that, before making the change of direction, the pallet 1 is correctly positioned on the second conveyor belt 4. And the deflation and inflating of the pipes take place simultaneously and automatically as soon as this position is reached.
L'installation comporte aussi un contact 30 (voir figure 8) disposé à la sortie de la zone de changement de direction sur le tronçon de la seconde bande transporteuse 4. Ce contact 30 est prévu pour être actionné par une palette 1 lorsque celle-ci est entraînée hors de la zone de changement de direction par la bande 4. Il déclenche un rappel de la butée en position initiale de butée en vue de l'accueil d'une nouvelle palette 1 amenée par la première bande transporteuse 3. La figure 9 (sur laquelle les numéros de référence précédents qui sont repris correspondent à des éléments similaires) illustre une application de cette butée à une autre installation de convoyage de palettes dans laquelle une première bande transporteuse 5 forme un angle de changement de direction avec et est disposée à une hauteur sensiblement inférieure à une seconde bande transporteuse 6.The installation also comprises a contact 30 (see FIG. 8) disposed at the outlet of the zone of change of direction on the section of the second conveyor belt 4. This contact 30 is intended to be actuated by a pallet 1 when the latter is driven out of the direction change zone by the belt 4. It triggers a return of the abutment to the initial abutment position in order to accommodate a new pallet 1 brought by the first conveyor belt 3. FIG. 9 (on which the preceding reference numbers which are taken correspond to similar elements) illustrates an application of this stop to another pallet conveyor installation in which a first conveyor belt 5 forms a change of direction angle with and is disposed at a height substantially less than a second conveyor belt 6.
Un dispositif élévateur 7 pneumatique disposé dans la zone de changement de direction est commandé par le dispositif de commutation 11 de la butée de manière, une fois la palette 1 arrêtée et correctement positionnée par la butée, à soulever la palette 1 jusqu'à ce qu'elle puisse être entraînée par la seconde bande transporteuse 6 dans la direction de destination.A pneumatic lifting device 7 arranged in the direction change zone is controlled by the switching device 11 of the stop so that, once the pallet 1 has stopped and correctly positioned by the stop, to raise the pallet 1 until it can be driven by the second conveyor belt 6 in the direction of destination.
Comme il va de l'invention ne se limite pas à la seule forme d'exécution de ce dispositif, décrite ci-dessus à titre d'exemple, elle en embrasse au contraire toutes les variantes de réalisation et d'application respectant le même principe. C'est ainsi, notamment, que l'on ne s'éloignerait pas du cadre de l'invention en remplaçant le ressort 25 par un aimant permanent, ou en employant un dispositif 11 de commutation au moyen de contacts électriques (au lieu d'un distributeur pneumatique). As it goes from the invention is not limited to the sole embodiment of this device, described above as an example, it encompasses all the variants of implementation and application respecting the same principle. . Thus, in particular, one would not depart from the scope of the invention by replacing the spring 25 with a permanent magnet, or by employing a switching device 11 by means of electrical contacts (instead of a pneumatic distributor).

Claims

REVENDICATIONS
1. Butée amortissante destinée à l'arrêt d'une charge mobile (1), comportant un organe de butée (8) susceptible d'être déplacé de façon amortie d'une position initiale de butée à une position terminale de butée, et relié à un dispositif d'amortissement (9) présentant au moins un piston amortisseur (13) mobile dans un cylindre amortisseur (14), caractérisée en ce que l'impact d'une charge (1) contre l'organe de butée (8) actionne un dispositif d'effacement (10) de la butée qui comporte des moyens (24), notamment élastiques (25) ou magnétiques, d'entraînement en translation de l'organe de butée (8) vers sa position terminale de butée.1. damping stop for stopping a moving load (1), comprising an abutment member (8) capable of being damped from an initial abutment position to an end stop position, and connected a damping device (9) having at least one damping piston (13) movable in a damping cylinder (14), characterized in that the impact of a load (1) against the stop member (8) actuates an erasing device (10) of the abutment which comprises means (24), in particular resilient (25) or magnetic means, driving in translation of the abutment member (8) towards its end stop position.
2. Butée amortissante selon la revendication 1 , caractérisée en ce que l'organe de butée (8) est associé à un dispositif de commutation, notamment pneumatique (11 ), mécanique ou électrique, prévu pour commuter lorsque l'organe de butée (8) atteint la position terminale de butée.2. damping abutment according to claim 1, characterized in that the abutment member (8) is associated with a switching device, in particular pneumatic (11), mechanical or electrical, provided to switch when the stop member (8) ) reaches the end stop position.
3. Butée amortissante selon la revendication 2 appliquée à une installation de convoyage de palettes (1) ou similaires, caractérisée en ce que le dispositif de commutation (11) comporte un axe de liaison (16) monté coulissant dans le sens de butée dans un cylindre de commutation (18) et qui présente deux segments d'étanchéité (17a, 17b) de manière à former une chambre de commutation étanche (17) et mobile dans le cylindre de commutation (18), et en ce que le cylindre de commutation (18) présente successivement un premier trou de refoulement (22) situé dans une zone distale vis-à-vis de l'axe de liaison (16) et relié à des moyens pneumatiques d'entraînement d'une première bande transporteuse (4) de l'installation de convoyage, un trou d'alimentation (20) relié à une source d'air sous pression (12) et un second trou de refoulement (21) relié à des moyens pneumatiques d'entraînement d'une seconde bande transporteuse (3) formant un angle du changement de direction avec la première bande transporteuse (4), de sorte que le trou d'alimentation (20) et le second trou de refoulement (21) débouchent dans la chambre de commutation (17) en position initiale de butée, et que le trou d'alimentation (20) et le premier trou de refoulement (22) débouchent dans la chambre de commutation (17) en position terminale de butée.3. damping stop according to claim 2 applied to a pallet conveying installation (1) or the like, characterized in that the switching device (11) comprises a connecting pin (16) slidably mounted in the direction of abutment in a switching cylinder (18) having two sealing segments (17a, 17b) so as to form a sealed switching chamber (17) and movable in the switching cylinder (18), and in that the switching cylinder (18) successively has a first discharge hole (22) located in a distal zone with respect to the connecting pin (16) and connected to pneumatic means for driving a first conveyor belt (4) of the conveyor system, a feed hole (20) connected to a source of pressurized air (12) and a second discharge hole (21) connected to pneumatic means for driving a second conveyor belt (3) forming an angle of change of direction with the first conveyor belt (4), so that the feed hole (20) and the second discharge hole (21) open into the switching chamber (17) in the initial abutment position, and that the supply (20) and the first delivery hole (22) open into the switching chamber (17) in the end stop position.
4. Butée amortissante selon l'une des revendications 1 à 3, caractérisée en ce que ledit dispositif d'effacement (10) comporte une pièce formant crochet (24) montée mobile en translation dans un logement (29) longitudinal dans le sens de butée, la pièce formant crochet (24) comportant une rampe de blocage (27) dans une position inactive, correspondant à la position initiale de butée, contre une bordure (26) de forme complémentaire du logement (29), et en ce qu'un doigt de préhension (19) solidaire de l'organe de butée (8) est susceptible, suite à un impact contre l'organe de butée (8), d'être entraîné en butée contre la pièce formant crochet (24) de manière à désolidariser en faisant glisser la rampe de blocage (27) contre sa bordure (26) et à faire basculer la pièce formant crochet (24) dans son logement (29) dans une position d'accrochage du doigt de préhension (19).4. damping abutment according to one of claims 1 to 3, characterized in that said erasing device (10) comprises a hook member (24) mounted to move in translation in a housing (29) longitudinal in the direction of abutment the hook piece (24) having a locking ramp (27) in an inactive position, corresponding to the initial stop position, against an edge (26) of complementary shape of the housing (29), and in that a gripping finger (19) integral with the abutment member (8) is capable, following an impact against the abutment member (8), to be driven in abutment against the hook piece (24) so as to detach by sliding the locking ramp (27) against its edge (26) and tilting the hook piece (24) in its housing (29) in a gripping position of the gripping finger (19).
5. Butée amortissante selon l'une des revendications 1 à 4, caractérisée en ce qu'un dispositif de régulation de débit est prévu dans la zone terminale du cylindre amortisseur (14), contre laquelle le piston amortisseur (13) repose dans la position terminale de butée, pour assurer une résistance à l'écoulement de fluide entrant ou sortant lors du déplacement du piston amortisseur (13) de manière à amortir le déplacement de ce dernier. Shock absorber according to one of claims 1 to 4, characterized in that a flow control device is provided in the end zone of the damping cylinder (14), against which the damping piston (13) rests in the position end stop, for ensuring a resistance to the flow of fluid entering or exiting during the displacement of the damping piston (13) so as to damp the movement of the latter.
PCT/FR2006/002120 2005-09-26 2006-09-15 Damping stop for stopping a mobile load WO2007034053A1 (en)

Priority Applications (1)

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DE112006002476.0T DE112006002476B4 (en) 2005-09-26 2006-09-15 Damping stop for stopping a moving load

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0509812 2005-09-26
FR0509812A FR2891266B1 (en) 2005-09-26 2005-09-26 AMORTIZING STOPS INTENDED FOR THE STOPPING OF A MOBILE LOAD.

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Cited By (4)

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Publication number Priority date Publication date Assignee Title
CN105905596A (en) * 2016-06-21 2016-08-31 吴中区木渎蒯斌模具加工厂 Transposition unit of travel switch contact part assembling machine
CN109132466A (en) * 2018-07-04 2019-01-04 六安市叶集区亿源木业加工有限公司 Plate falling buffer device in artificial plate production process
CN113071890A (en) * 2021-03-22 2021-07-06 苏州冠鸿智能装备有限公司 Koji receiving device, intelligent koji carrying production line and koji block carrying method
CN116513786A (en) * 2023-07-05 2023-08-01 上海果栗自动化科技有限公司 Connection device and magnetic drive conveying line with same

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CN112645028B (en) * 2020-12-16 2022-08-05 天奇自动化工程股份有限公司 Right-angle turning mechanism control system used in tray conveying process

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DE3410287A1 (en) * 1983-04-09 1984-10-11 E.C.H. Will (Gmbh & Co), 2000 Hamburg Apparatus for discharging piles of paper to paper processing machines

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DE3410287A1 (en) * 1983-04-09 1984-10-11 E.C.H. Will (Gmbh & Co), 2000 Hamburg Apparatus for discharging piles of paper to paper processing machines

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105905596A (en) * 2016-06-21 2016-08-31 吴中区木渎蒯斌模具加工厂 Transposition unit of travel switch contact part assembling machine
CN109132466A (en) * 2018-07-04 2019-01-04 六安市叶集区亿源木业加工有限公司 Plate falling buffer device in artificial plate production process
CN113071890A (en) * 2021-03-22 2021-07-06 苏州冠鸿智能装备有限公司 Koji receiving device, intelligent koji carrying production line and koji block carrying method
CN116513786A (en) * 2023-07-05 2023-08-01 上海果栗自动化科技有限公司 Connection device and magnetic drive conveying line with same
CN116513786B (en) * 2023-07-05 2023-10-20 上海果栗自动化科技有限公司 Connection device and magnetic drive conveying line with same

Also Published As

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DE112006002476B4 (en) 2015-12-17
DE112006002476T5 (en) 2008-08-21
FR2891266B1 (en) 2007-11-02

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