EP0594090B1 - Dispositif de positionnement d'objets - Google Patents

Dispositif de positionnement d'objets Download PDF

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Publication number
EP0594090B1
EP0594090B1 EP93116757A EP93116757A EP0594090B1 EP 0594090 B1 EP0594090 B1 EP 0594090B1 EP 93116757 A EP93116757 A EP 93116757A EP 93116757 A EP93116757 A EP 93116757A EP 0594090 B1 EP0594090 B1 EP 0594090B1
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EP
European Patent Office
Prior art keywords
engagement
alignment
face
article
path
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
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EP93116757A
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German (de)
English (en)
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EP0594090A1 (fr
Inventor
Gianni Mantovani
Joachim Seefeldt
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Bielomatik Leuze GmbH and Co KG
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Bielomatik Leuze GmbH and Co KG
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Publication of EP0594090A1 publication Critical patent/EP0594090A1/fr
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H31/00—Pile receivers
    • B65H31/34—Apparatus for squaring-up piled articles

Definitions

  • the invention relates to a positioning device according to the preamble of claim 1.
  • piece goods can be moved in a predetermined movement path or in a fixed position, e.g. be provided in such a way that it is aligned with one, two or three perpendicular spatial axes with respect to a reference plane or a reference point or a base.
  • General cargo seen in at least one of the spatial axes, can have an irregular or regular rounded or angular shape, in particular an external shape, for example triangular, rectangular, square and similar.
  • the piece goods can be deformable, at least when they are in contact with a base surface, and are essentially incompressible, but essentially deformable parallel to the base surface, but can be deformed, as is the case, for example, with piece goods consisting of a large number of the same size and flush with one another in a stack lying sheet layers is the case which can be shifted against each other parallel to their planes or can be lifted off each other transversely to their planes
  • the piece goods form a strictly rectangular cuboid, which can be highly resistant to deformation, although its individual layers have thicknesses of less than two or one tenth of a millimeter and are essential in the case of paper or paper-like materials higher flexibility than e.g. metallic materials have approximately the same dimensions.
  • General cargo is aligned especially for the purpose of subsequent processing.
  • the piece goods are aligned with a packaging station, in which they are brought together in a precisely predetermined position with a flexible packaging wrapping that is still essentially spread out and this is then wrapped around the piece goods.
  • This can e.g. in that the piece goods are aligned between box-shaped walls and their four sides can slide transversely to a base surface and at right angles and parallel to each other on the inside walls.
  • EP-A-0 373 331 shows a transverse alignment according to the preamble of claim 1 with endless belts tapering towards one another, which are supported relentlessly on their rear sides with guide parts, so that they cannot yield under the force of their engagement in the piece goods.
  • DE-A-2 702 737 shows a guide section for general cargo with two parallel, lateral guide belts, a transverse orientation is not provided here, but only a lateral guide, holder or support.
  • Another object of the invention is to provide a positioning device in which disadvantages of known designs or of the type described are avoided and which ensures an increased working speed, in particular when the piece goods are subjected to low loads.
  • the features of claim 1 are provided.
  • the alignment can take place in that alignment surfaces act on closely delimited zones of the piece goods and thereby introduce alignment forces into the piece goods, each approximately parallel to one, two or three of the spatial axes can act in opposite directions after deviation from the desired alignment state.
  • Two or three alignment movements approximately at right angles to one another or parallel to the spatial axes are advantageously superimposed on one another in such a way that a reduction ratio between 5: 1 and 18: 1, in particular between 10: 1 and 14: 1, exists between at least two alignment movements with regard to the movement path , where, depending on the level of the alignment resistances between these limit values, any integer multiple can be advantageous.
  • the alignment along the relatively longer movement path can simultaneously serve to transport the piece goods, for example to an aligned ready position determined by the stop and / or interruption of the drive. Simultaneously with this conveying movement, the piece goods are then aligned in a direction transverse thereto by a relatively much smaller path and, if necessary, in a further direction transverse to the two aforementioned directions by a relatively even smaller path, namely transverse to its base surface.
  • This last alignment can be done in a simple manner in that the piece goods are pushed with their base surface onto a correspondingly aligned base surface.
  • the alignment base does not have to be moved relative to the device base, but the piece goods can be moved and thereby simultaneously transferred from one station, for example a stacking picture, to another work station, in which it then moves to the base area after two about parallel spatial axes arrives exactly aligned and is stopped.
  • the alignment movements are advantageously not in a vertical, but in a different, e.g. approximately horizontal direction, the base advantageously deviating from a vertical position, namely as a wing for receiving the weight on the underside of the piece goods.
  • two alignment movements are expediently approximately parallel to this direction or plane or, in the case of stack layers, parallel to their planes.
  • the alignment surfaces advantageously attack uniformly over the entire extent of the piece goods that lies transversely to the planes mentioned.
  • the alignment surfaces are brought into engagement with the associated counter surfaces of the piece goods over its entire associated extent essentially simultaneously by transverse movements.
  • the respective alignment surface can be tilted at least by a few angular degrees about an axis approximately parallel to it or approximately perpendicular to the base surface and at most at a short distance from it, so that it automatically adjusts itself to an essentially full-surface position under the contact forces can and not only lies in point or line form on the piece goods.
  • the alignment surface can be deflected at least over part of its travel in a direction away from the piece goods against a restoring force, so that it acts relatively softly on the piece goods. It is only at the end of their travel that the alignment surface is expediently or positively supported against such deflection movements, so that the general cargo is in any case forced into its predetermined alignment position in this last phase. In this last phase, the alignment surface can move outward on an arch path, by means of which the reduction ratio mentioned is reduced in this last phase.
  • a particularly fast way of working can be achieved if the alignment surfaces take over the respective piece goods from a conveyor running at a uniform speed, which expediently forms a substantially continuous continuation of the base area and on which the piece goods can then be roughly pre-aligned transversely to the conveying direction before it slides onto the actual base area.
  • the alignment surfaces can have a higher conveying speed than the conveyor, so that they catch up the piece goods in the manner of sliders on the back and after running onto the piece goods, they move them at a correspondingly higher speed relative to the transporter and the subsequent piece goods.
  • the alignment surfaces are then stopped, so that they continue to secure the piece goods and form a slide guide lying transversely to the base area, along which the piece goods can be transferred to the processing position of the associated work station.
  • the following piece goods are conveyed further at the same speed, the intermediate distances between successive piece goods being selected such that the alignment surfaces of the piece goods transferred into the working position are already released before they have to be moved again in order to take over a subsequent piece goods.
  • the positioning device 1 is used to feed piece goods 2, e.g. Paper giant of at least one or more 100 sheets each, to a work station, in which the piece goods 2 arrive precisely aligned in view of their underside or base surface 3, so that the work movement associated with the work station can be carried out by moving them at right angles to their base surface.
  • the piece goods 2 have, at right angles to the flat base surface 3 in pairs opposite one another and at right angles to one another, flat side surfaces 4 to 7 which adjoin one another in right-angled corner zones.
  • the base surface 3 is parallel to a flat top surface 8 of the same size.
  • the device 1 has, for example, a frame-like device base 9, which determines an alignment base 10, against which the respective piece goods 2 are to assume a more precisely determined, fixed position, both in plan view and in view of each side surface 4 to 7.
  • the height is determined by an essentially flat base or engagement surface 11 on which the piece goods 2 rests with the base surface 3.
  • a precise alignment transversely to the side surfaces 6, 7 is determined by a continuously flat alignment or engagement surface 12, which is used for the full-surface contact of the side surface 6 and in view of the Base 11 is at a distance from this, which can be on the order of a third of the distance between the side surfaces 6, 7.
  • the alignment surface 12 is opposite to approximately parallel and planar alignment or engagement surfaces 14, which are intended for the installation of the side surface 7 with areas that are only half to a twelfth, in particular a fifth to a tenth, of the total area correspond to the side surface 7.
  • Each alignment surface 14 directly adjoins in a rigid association with an approximately flat, also flat alignment or engagement surface 13, which is intended for contacting the associated side surface 4 or 5 with an area proportion which is also approximately of the order of magnitude mentioned can.
  • Alignment surfaces 13 are provided only at a distance from the alignment surface 12, namely in the region of the corner zone of the piece goods 2 delimited by the side surface 7, so that this does not directly adhere to the side surfaces 4, 5 over most of its extent between the side surfaces 6, 7 Alignment surfaces. All engagement surfaces 12 to 14 extend at least over the total height of the piece goods 2.
  • At least one, namely the alignment surface 12, is larger than the associated side surface 6, so that it protrudes beyond the base surface 3, the top surface 8 and / or the side surface 4 or 5 and the side surface 6 rests essentially over its entire surface.
  • the alignment surface 12 is formed by a plate surface of a plate-shaped alignment body or engaging member 15, which advantageously is essentially vertical.
  • a pair of two alignment surfaces 13, 14 delimiting a protruding corner zone is formed by an alignment body or an engagement member 16 or 17 which is angular in cross section and which is angular over its entire length constant continuous profile rod is formed and extends approximately at right angles to the base surface 11 or approximately parallel to the alignment surface 12.
  • the angle leg forming the wider alignment surface 13 is longer than the angle leg forming the narrower alignment surface 14.
  • Each alignment surface 14 lies in a top view with a lateral distance from the base surface 11, while each alignment surface 13 lies in the ready position with a considerably greater distance from the alignment surface 12.
  • the angle between the alignment surfaces 13, 14 essentially corresponds exactly to the angle between the associated side surfaces 4, 7 and 5, 7 in the region of the corner zone of the piece goods 2.
  • the alignment surface 12 is not moved by a direct drive or is arranged essentially stationary, while the alignment surfaces 1, 14 can each be moved transversely against the alignment surface 12 by the drive with the piece goods 2.
  • the respective alignment body 16 or 17 is fastened to two essentially identical support members 18 which are spaced apart from one another transversely to the base surface 11 or parallel to the alignment surface 12 and in the longitudinal direction of which the respective alignment body 16 or 17 is essentially rigid or is positively attached.
  • the support members 18 are expediently formed by roller chains, toothed belts or the like. So that they can be driven without slippage.
  • the strand of each support element 18 facing the piece goods 2 is located as an engagement support 19 in view of the base surface 11 according to FIG. 1 at an acute angle of less than 30, 20, 15 or 10 ° with respect to a plane approximately perpendicular to the surfaces 11, 12 or to the associated side surface 4 or 5 and approaches the center of the alignment surface 12. Due to this position of the strand 19, the respectively effective movement path of the associated one Alignment surface 13, 14 determined.
  • the support members 18 are in each case endlessly guided around two rear deflections 20, 21 lying one behind the other transversely to the alignment surface 12 in the form of sprockets, of which the deflection closer to the alignment surface 12 has a deflection radius which is approximately one third smaller.
  • the axes 22 of the front deflections 20, which are closer to the alignment surface 12 are at a smaller distance than the axis 23 of the respective rear deflection 21, although the common axial plane of the deflections 22, 23 to the strand 19 lies at an angle of a few degrees of angle closing to the alignment surface 12.
  • two or more alignment bodies 16, 17 can be distributed at equal intervals along its length, which act successively for aligning successive piece goods 2, so that a rapid work sequence is possible at relatively low speeds and always the same direction of rotation.
  • the support members 18 and the deflections 20, 21 are mounted on a bracket 24, which can be continuously adjusted on the base 9 transversely to the alignment surface 12 or approximately parallel to the base surface 11 and can be fixed in the respectively set position. Furthermore, the support members 18 or dreams 19 including the deflections 20, 21 can be adjusted and fixed transversely to the aforementioned central plane or approximately parallel to the engagement surfaces 11, 12 in a corresponding manner. As a result, the device 1 can be set for piece goods 2 of different sizes.
  • the transverse adjustability can be oppositely synchronized, for example, by linkage or the like, in such a way that both strands or engagement supports 19 are always at the same distance from the median plane mentioned.
  • the shafts of the deflections 20, 21 are each mounted in bearings 25, 26, which are adjustable in the manner described.
  • the respective rear bearing 26 is assigned a tensioning device 27, by means of which the associated support member 18 can be continuously tensioned in tension and secured in the respectively set tensioning state.
  • the respective strand 19 is not supported on the inside, but rather can be pressed inward against its tension into a flat sheet position, such a sheet position being indicated by dash-dotted lines on the left in FIG. 1.
  • the resilient force acting against the deflection is greatest directly adjacent to the respective deflection 20, 21 and decreases steadily towards the middle of the length of the run 19, where it is the smallest. This length is greater than the corresponding length of the piece good 2 and less than double it.
  • the alignment body 15 is transversely or approximately at right angles to the alignment surface 12 in a bearing 28 of the base 9, e.g. characterized in that a plurality of spaced-apart slide rods are provided on the back of the alignment body 15, which run in slide bushes.
  • the alignment body 15 can only be moved against a relatively large resistance by pressure against the outer surface 12, because this pressure is counteracted by a counterforce 29, e.g. a spring arrangement which self-resets the alignment body 15 when released.
  • This arrangement can e.g. formed by one or more pneumatic piston springs and their resistance or spring characteristics to adapt to the weight, the frictional resistances or the like.
  • the side of the base surface 11 remote from the alignment surface 12 is approximately in the said central plane lying conveyor 30 for the piece goods 2, which can be formed, for example, by the upper run of a belt conveyor, and whose supporting surface, which is associated with the base surfaces 3, lies at least in the region adjacent to the base surface 11 with the latter approximately in one plane or, in contrast, slightly higher.
  • the base surface 11 is formed by a lifting table which can be moved transversely or at right angles to it, which can be raised as an engagement member 32 from the supply position which is approximately level with the transporter 30 by an amount which is greater than the distance between the base surface 3 and the top surface 8 of the General cargo 2 is.
  • the sliding or engaging surfaces 12 to 14 protrude approximately the same distance and further than the piece goods 2 from the base 11, however the lifting table 32 or the base 11 can be moved beyond the associated ends of the sliding surfaces.
  • the front end of the conveyor belt runs over a deflection 31 that it has only a small gap distance from the associated edge of the base 11 in the view according to FIG. 1 and thereby a transfer station 33 is formed, at which the piece goods 2 from the moving conveyor 30 so can be moved to the fixed base 11 that it is completely released from the transporter 30.
  • the base surface 11 or the lifting table 32 is offset inward from one to all side surfaces 4 to 7 of the piece goods 2, the distance from the side surfaces 4, 5 being smaller than the distance from the side surface 6 and the associated outer edge can align with the side surface 7 so that it does not protrude beyond it.
  • the width of the support surface of the transporter 30 is also narrower than that of the piece goods 2 and also that of the base area 11, so that the piece goods 2 protrudes on both sides laterally over the feed dog 30 approximately equally freely or unsupported, which is exaggerated in FIG. 1 is.
  • the footprint 11 or the table 32 is expediently composed of flat parts of the same or adjacent format. By removing or adding such format parts, the base 11 can be adapted to different layouts of piece goods 2.
  • the conveyor 30 conveys the piece goods 2 in the conveying or running direction 34 at right angles to the alignment surface 12 at a constant speed and at equal intervals, which correspond approximately to one to two times the associated extent of the piece goods 2 or the length of the strands 19, the approximately Side surface 6 lying at right angles to the running direction 34 forms the front side and the parallel side surface 7 remote therefrom forms the rear side surface, while the side surfaces 4, 5 lie approximately parallel to the running direction 34.
  • the support members 18, which had been stationary until then are set in motion by drive in the sense that they run in the area of the dreams 19 in approximately the same direction as the transporter 30.
  • the alignment bodies 16, 17 intended for alignment are moved over most of the deflections 21 in such a way that the alignment surfaces 14 are initially at a distance behind the rear side surface 7.
  • the alignment surfaces 13, 14 initially approach the piece goods 2 at a speed laterally or transversely to the conveying direction 34, which is greater than the speed component parallel to the running direction 34, this speed component initially being less than the conveying speed of the transporter 30.
  • the approach speed decreases and the conveying component of the alignment surfaces 13, 14 increases until when they have left the deflection 21 they have reached that value which corresponds to the direction and speed of movement of the strand 19 and is essentially constant over its length.
  • the alignment surfaces 13, 14 are still at a distance behind the side surface 7, but their speed in the conveying direction 34 is greater than that of the conveyor 30.
  • the movements or movement components are specified as speed vectors, namely the oblique positioning movement of the alignment surfaces 13, 14 in the region of the run 19 with the arrow 35, the conveying movement of the conveyor 30 with the vector 36, the movement component lying parallel to the conveying direction 34 the alignment surfaces 13, 14 with the vector 37 and the movement component lying transversely to the conveying direction 34 with the vector 38. Because of the movement 37, which is faster than the movement 36, the alignment surfaces 14 fetch the rear side surface 7 in the region between the first half after leaving the deflections 21 and the first third of the strands 19 and lie against them, initially resting only over part of their width, while the alignment surfaces 13 are still at a distance from the side surfaces 4, 5.
  • the alignment surfaces 14 then advance the piece goods 2 on the conveyor 30, which acts as a sliding surface and continues to run at the lower speed 36, at the higher speed 37, sliding inwards along the side surface 7.
  • the piece goods 2 are already pre-aligned on the conveyor 30, but only within larger tolerances with respect to the lateral orientation transverse to the conveying direction 34 and with respect to its rotational position about an axis perpendicular to the conveying plane.
  • the alignment body 16 or 17, which runs freely between the deflections 20, 21, can deviate slightly under the alignment resistance emanating from the piece goods 2, because the strand 19 can be transferred under the pressure against the alignment surface 13 into the arc path indicated by dash-dotted lines, from which it is when released, resiliently returns to the straight, straight position.
  • the alignment surface 14 can initially only engage with the side surface with part of its width, namely following the side surface 4 or 5 7, while the alignment surface 13 initially only engages with a part of its width adjoining its front end with the associated side surface 4 or 5. Due to the internal flexibility of the support member 18 or due to the articulation between the chain links the alignment body 16, 17 can also be mounted such that it adjusts itself to the respective side surface 4, 5, 7 in such a way that its alignment surfaces 13, 14 are aligned parallel to the respectively associated side surface when they are first touched.
  • the alignment body 16 or 17 can, for example, be pivotably mounted in a self-adjusting manner with respect to the support member 18 about a tilt axis 40 approximately parallel to the two alignment surfaces 13, 14 or approximately perpendicular to the base surface 11, this tilt axis 40 expediently in a range between the center of the width the alignment surface 13 and its transition into the alignment surface 14.
  • the alignment body 16 or 17 does not lie in the area of the free run 19, but approximately on the circumference of the associated deflection 20, so that it is supported here in a form-fitting manner against movements away from the piece goods 2.
  • the aligning body 16, 17 runs under the progressively increasing resilient force on the deflection 20, so that it is possibly moved form-fittingly from the arc path indicated by dash-dotted lines with an increased alignment speed 38 along the circumference of the deflection 20 to the mentioned central plane and in this last phase of movement the exact alignment is inevitable.
  • the front deflections 20 also lie in a common axial plane 44 which is approximately perpendicular to the conveying direction 34, and in the ready position the axial plane 44 passes through the alignment surfaces 13, in particular approximately through the middle of their width, which is why the axial plane 44 is opposite the side surface 7 in the ready position is slightly offset to the front.
  • the aligning bodies 16, 17 are synchronized by a common drive 39 and mutually in the conveying direction 34 driven exactly aligned, the drive acting appropriately on the front deflections 20 so that the strands 19 are drawn.
  • the drive 39 can lie approximately in the axis of a front deflection 20, and the deflections 20 can be connected to one another in a drive-free manner via a transmission (not shown in more detail).
  • a drive device 41 is assigned to the drive 39, which stops the movement of the alignment bodies 16, 17 which are in engagement with the piece goods 2 when the aligned ready position is reached.
  • the general cargo has its front side surface 6 against the alignment surface 12. If the piece goods 2 may still be slightly twisted during this casserole, it initially runs onto the alignment surface 12 only on one side and slides along this with a sliding, possibly further rotation, on the base surface 11 until the side surface 6 is in full contact with the alignment surface 12. At the same time, the side surface 6 takes the alignment surface 12 against the counterforce 29, by means of which the piece goods 2 are pressed against the alignment surfaces 14.
  • the counterforce 29 can already act on the alignment surface 12 in the form of, for example, a prestressed spring force in the starting position, in which the alignment surface 12 is not yet loaded by the piece goods 2.
  • a cam controller or cam gear with a standstill phase is also conceivable for drive control.
  • a control signal can be derived from the position of the alignment surface 12, on the basis of which the control device 41 stops the alignment bodies 16, 17 exactly when the aligned ready position is reached, so that this shutdown does not take place through a resistance emanating from the piece goods 2.
  • the alignment surfaces 12 to 14 form a conveyor shaft which is perpendicular to the base surface 11 and is considerably longer than the thickness of the piece goods 2 and which in the area of two transversely opposite corner zones by relatively narrow angular guides, namely the alignment surfaces 13, 14, and in the area thereof distant transverse surface 6 is limited by a flat sliding surface, namely the alignment surface 12.
  • the piece goods 2 are completely exposed between these sliding surfaces, which occupy only a fraction of the side surfaces 4, 5, 7.
  • a device can be provided at a distance above the piece goods 2, by means of which packaging paper or the like can be held ready in a position that is approximately flat, such that it is approximately parallel to the base surface 3 or the cover surface 8 at a distance above the upper end of the shaft lies.
  • packaging paper or the like When the aligned piece goods 2 are lifted with the lifting table 32, its top layer 8 abuts against the underside of the wrapping paper and takes it upwards, so that it can be knocked down laterally over the side surfaces 4 to 7 and then onto the base surface 3, which is exposed due to the limited size of the base 11 in the edge area.
  • the piece goods 2 completely lifted out of the open end of the conveying shaft and thus encased are then supported in the edge area, so that the lifting table 32 can be lowered back into its starting position and then takes over the next following piece goods 2 in the manner described.
  • the aligning bodies 15 to 17 thus form a slide shaft which can be converted from an expanded state into a narrowed ready state, the narrowing movement of the aligning bodies 16, 17 being oriented obliquely in the manner described and the shaft boundaries 12 to 14 being pretensioned on at least two side surfaces 6, 7 facing away from one another can concern.
  • the support members 18 and the deflections 20, 21 can lie behind or below the plane of the base 11 or the conveying plane of the transporter 30, so that only the alignment bodies 16, 17 protrude freely above this plane.
  • the components mentioned are expediently essentially encapsulated in a housing 42, separate housings being expediently provided on both sides of the conveyor track for the two alignment units.
  • the alignment bodies 16, 17 can protrude through openings in end walls of these housings.
  • the respective housing 42 it is also conceivable to design the respective housing 42 such that it has a passage 43 in the form of an opening in its peripheral wall, through which the respective alignment body 16 or 17 exits the housing 42 when it passes over the deflection 21 moved into the area of the strand 19, so that the alignment body 16 or only over the effective travel for alignment is outside the housing. After part of the circulation via the deflection 20, the alignment body 16 or 17 then re-enters the housing 42, in which it lies during the entire return along the opposite run.
  • Each of the named components or each of the arrangements can only be provided once, two or more times, e.g. in order to align several piece goods 2 simultaneously and / or in succession in a single positioning device in one or more conveying levels or in one or more alignment stations.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Attitude Control For Articles On Conveyors (AREA)
  • Special Conveying (AREA)
  • Control Of Conveyors (AREA)
  • Container Filling Or Packaging Operations (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)

Claims (17)

  1. Dispositif de positionnement pour charges isolées (2), en particulier des charges mises en piles se composant de couches empilées sans lien posées les unes sur les autres et qui présentent des faces (3 à 7), accessibles pour ainsi dire librement et alignées transversalement entre elles, à savoir une face de base (3), ainsi qu'une première et des deuxièmes faces latérales (4 à 7), le dispositif comportant un socle (9) et un dispositif servant à centrer transversalement la charge isolée (2) dans un moins une direction de centrage, le dispositif de centrage présentant une voie d'avancement pour la charge isolée (2), qui détermine une direction d'avancement (34) et comprend une voie de centrage par rapport à la direction transversale de la charge isolée (2) se trouvant dans une certaine direction de centrage, et au moins un organe d'accostage (15 à 17, 32) doté d'au moins une face d'accostage (12 à 14) destinée à établir un contact de centrage transversal, selon une trajectoire appropriée, avec au moins une des faces latérales (4 à 7) de la charge, en appliquant une force de contact, caractérisé en ce que dans la zone de la voie de centrage, au moins une des faces d'accostage (12 à 14) est adaptée de manière à pouvoir fléchir élastiquement au-delà d'un jeu de mouvements de tolérance par l'effet et à l'encontre de la force de contact produite lors du contact avec la charge isolée (2), sauf en bout de voie de centrage, où la face d'accostage est empêchée de fléchir.
  2. Dispositif de positionnement selon la revendication 1, caractérisé en ce que la face d'accostage (12 à 14) se déplace dans un même temps sur la voie de centrage, aussi bien dans la direction de centrage correspondante que dans la direction opposée, en ce qu'en particulier la face d'accostage (12 à 14) positionnée dans la direction de centrage correspondante, est soumise à une force de centrage qui va en augmentant dans la direction d'avancement (34) transversale à la deuxième face latérale (6, 7) de la charge, et dans la direction opposée, et en ce que lorsqu'il n'y a pas de contact avec la charge isolée (2), la face d'accostage concernée (13, 14) est, de préférence, sensiblement libérée de la force de centrage ou exempte de contraintes dans la direction de centrage correspondante.
  3. Dispositif de positionnement selon l'une des revendications précédentes, caractérisé en ce que chaque face d'accostage (11 à 14) de l'organe d'accostage (15 à 17) est configurée de manière à présenter au moins une des faces constituées par une première face d'accostage (13) pour le contact avec une première face latérale (4, 5) de la charge, une deuxième face d'accostage (12, 14) pour le contact avec une deuxième face latérale (6, 7) des articles, et une troisième face d'accostage (11) pour le contact avec la face de base (3) de la charge, en ce qu'en particulier chacune des faces d'accostage (12 à 14) est montée avec une aptitude de déplacement pour un alignement de centrage s'adaptant spontanément à une force de contact spécifique minimale, et en ce que, de préférence, au moins une des première, deuxième et troisième faces d'accostage (11 à 14) est pour ainsi dire indéformable en soi.
  4. Dispositif de positionnement selon l'une des revendications précédentes, caractérisé en ce que chacun des organes d'accostage (15 à 17) est mobile, pratiquement comme un tout par rapport à la direction de centrage correspondante, en ce qu'en particulier chaque organe d'accostage (15 à 17) est assemblé à au moins un support d'accostage (19) mobile avec lui pour ainsi dire parallèlement à la direction de centrage correspondante ou à la direction d'avancement (34), et en ce que, de préférence, la face d'accostage appropriée (12 à 14) est configurée comme face de transport pour entraîner la charge isolée (2), en la transportant, dans le sens d'avancement (34).
  5. Dispositif de positionnement selon l'une des revendications précédentes, caractérisé en ce qu'au moins deux premières et deuxièmes faces d'accostage de chaque organe d'accostage (15, 32; 16, 17) transversales l'une à l'autre sont pour ainsi dire en position fixe l'une par rapport à l'autre ou font corps au moins dans une zone de jonction, en ce que chaque première face latérale (4, 5) de la charge est une face de la charge isolée (2) qui est sensiblement plane et se trouve le plus à l'extérieur par référence aux côtés, auquel cas, la face d'accostage (13) correspondante, en particulier, est adaptée de manière à ne venir en contact qu'avec une partie de la face extérieure de la charge, et pour laisser une plus grande étendue de cette face libre de forces de contact lors du déplacement entre un début et une fin de la voie d'avancement ou de centrage, et en ce que, de préférence, chaque organe d'accostage (15 à 17, 32) est prévu sur le support d'accostage (19) ou constitué par celui-ci, et le support d'accostage (19) est étendu en longueur, en substance dans le sens de l'avancement, en définissant une portée longitudinale, et peut bouger avec l'organe d'accostage (16, 17), autant dire parallèlement à la direction de centrage correspondante, au moins sur une partie de cette portée longitudinale.
  6. Dispositif de positionnement selon la revendication 4 ou 5, caractérisé en ce que la face d'accostage (13, 14) peut se mouvoir entre les extrémités de chaque support d'accostage (19) par une déviation de flexion, en ce qu'en particulier la face d'accostage (13, 14) concernée est empêchée, en substance par un soutien, de se mouvoir en sens contraire de la direction de centrage, pratiquement par adaptation de forme, par une face d'appui courbe (20, 21), et en ce que, de préférence, un début de la voie de centrage est espacé de l'extrémité correspondante du support d'accostage (19), pour l'essentiel dans le sens d'avancement (34), situation dans laquelle à l'extrémité du support d'accostage (19) correspondant au début de la voie, la face d'accostage (13, 14) concernée se déplace sur une trajectoire incurvée qui présente un rayon de courbure plus grand qu'une trajectoire incurvée se trouvant à l'autre extrémité du support d'accostage (19).
  7. Dispositif de positionnement selon l'une des revendications 4 à 6, caractérisé en ce que la face d'accostage (12 à 14) est raccordée à au moins deux supports d'accostage (19) décalés l'un par rapport à l'autre, transversalement au sens d'avancement (34) et à la face de base (3) de la charge, en ce qu'en particulier l'organe d'accostage (15 à 17) voire la face d'accostage (12 à 14) forme une extrémité d'accostage faisant librement saillie et libre de tout appui transversal direct, et en ce que, de préférence, chaque support d'accostage (19) est constitué d'un organe porteur au moins pratiquement continu, guidé par l'intermédiaire d'au moins un dispositif de renversement de marche (20, 21) constituant un contre-appui sensiblement fixe pour la face d'accostage respective (13, 14), ou d'un organe porteur flexible et mis en précontrainte dans le sens longitudinal, indépendamment du contact avec la charge isolée (2).
  8. Dispositif de positionnement selon l'une des revendications précédentes, caractérisé en ce que la face d'accostage (11 à 14) peut être déplacée avec un guidage forcé, en tant que face de centrage, en fonction du défilement de la charge isolée (2) sur la voie de centrage, dans la direction de centrage correspondante, la direction de centrage correspondant à au moins un des mouvements définis par un mouvement parallèle à au moins une face de centrage (11 à 14), un mouvement à peu près à angle droit par référence à la face de centrage respective (11 à 14), un pivotement autour d'un axe de pivotement (40), et un mouvement transversal au sens d'avancement (34), en ce qu'en particulier la face d'accostage (11 à 14) est constituée d'une face de glissement venant progressivement et de manière de plus en plus accentuée en contact, par sa surface, avec la charge isolée (2), et qui se trouve ensuite, pour ainsi dire sur toute l'étendue de sa surface, en contact avec la charge isolée (2), et en ce qu'il est prévu, de préférence, au moins une troisième face d'accostage (13) positionnée transversalement au sens d'avancement (34) ainsi que des moyens assurant un centrage latéral de la charge isolée (2) et le centrage consécutif de la charge isolée (2) du fait de son contact avec la troisième face d'accostage (12) lorsque la charge isolée (2) défile en continu dans le sens d'avancement (34).
  9. Dispositif de positionnement selon l'une des revendications précédentes, caractérisé en ce qu'il est prévu des moyens d'entraînement assurant un entraînement autant dire par obstacle et sans patinage des diverses faces d'accostage (12 à 14), en substance dans la direction d'avancement (34), en ce qu'en particulier une face d'accostage (12) forme une face de butée (12) pour l'arrêt en fin de course, par obstacle, d'un mouvement d'avancement de la charge isolée (2), en ce que, de préférence, les organes d'accostage (15, 16, 17; 16, 17) sont prévus en opposition mutuelle et déterminant une largeur d'accostage voire un angle de rétrécissement d'une largeur d'accostage, et il est prévu des organes de réglage (24) assurant l'ajustement, en relation d'opposition mutuelle, des organes d'accostage opposés, en vue de faire varier la largeur d'accostage en décalant, linéairement, ou en faisant varier, par pivotement, l'angle de rétrécissement.
  10. Dispositif de positionnement selon l'une des revendications précédentes, caractérisé en ce qu'il est prévu, comme face d'accostage (11), au moins une face inférieure de soutien permettant de réceptionner, avec une possibilité de déplacement relatif par rapport à elle, la face de base (3) de la charge, lors d'un passage en position centrée, en ce qu'en particulier la face inférieure en question peut être déplacée, avec la charge isolée (2) en position centrée, en vue d'évacuer complètement la charge isolée (2) de la voie d'avancement, transversalement au sens d'avancement (34), et en ce que, de préférence, sur la voie de centrage ou dans les diverses positions de centrage, la charge isolée (2) est en surplomb latéral, autant dire librement, au moins sur un côté.
  11. Dispositif de positionnement selon l'une des revendications précédentes, caractérisé en ce que pour centrer la charge isolée (2) dans la position de centrage adéquate, il est prévu au moins un magasin de centrage susceptible de rétrécir en largeur pendant l'opération de centrage, du moins sur une partie de sa longueur, en ce qu'en particulier, au moins une limitation de magasin est formée par une certaine face d'accostage (11 à 14) ou peut reculer élastiquement, et en ce que, de préférence, le magasin de centrage constitue un magasin de transport de la charge isolée (2) définissant une direction de transfert transversale par rapport au sens d'avancement (34), ou encore, la limitation de magasin constitue une face de glissement pour le transport de la charge isolée (2).
  12. Dispositif de positionnement selon la revendication 10 ou 11, caractérisé en ce que la face inférieure est constituée par au moins un convoyeur (30) entraîné et desservant un réceptacle pour charges isolées, via au moins un poste de transfert (33), en ce qu'en particulier le réceptacle pour charges isolées est autant dire fixe lors du passage de la charge isolée (2) dans la position de centrage respective, et en ce que, de préférence, la charge isolée (2) se trouvant dans une position centrée est libre du contact avec le transporteur en question (30), ou encore, la face inférieure, le poste de transfert (33) et le réceptacle pour les charges isolées se situent pour ainsi dire dans un seul et même plan, dans au moins une position de service.
  13. Dispositif de positionnement selon l'une des revendications précédentes, caractérisé en ce que pour acheminer la charge isolée (2) sur la voie de centrage, il est prévu au moins un convoyeur (30) pouvant être entraîné par moteur, en ce qu'en particulier le convoyeur (30) en question est autant dire continu jusqu'à un début de convoyeur se trouvant à quelque distance devant la voie de centrage, dans la direction opposée au sens d'avancement (34), ou est continu, au moins en partie, sur la voie de centrage, et en ce que, de préférence, il est prévu des organes de pilotage (41) servant à mettre la face d'accostage respective (11 à 14) en contact ou hors de contact avec le convoyeur respectif (30) ou encore avec la face d'accostage respective (13, 14) pendant le transport pratiquement continu de la charge isolée (2).
  14. Dispositif de positionnement selon la revendication 12 ou 13, caractérisé en ce que le convoyeur en question (30) présente et une face de transport servant au déplacement, à peu près synchrone, avec la charge isolée (2), et une face de glissement servant à provoquer un déplacement relatif de la charge isolée (2) qui n'est en contact que par une seule face (3) non protégée, à peu près parallèlement au sens d'avancement (34), en ce qu'en particulier le convoyeur (30) sert à amener la charge isolée (2) au dispositif de positionnement (1), et en ce que, de préférence, des organes de réglage sont prévus pour faire varier la position de la charge isolée (2) par rapport au convoyeur respectif (30), avec la face d'accostage respective (11 à 14), dans une direction transversale par référence au sens d'avancement (34), ou encore parallèlement au sens d'avancement (34).
  15. Dispositif de positionnement selon l'une des revendications précédentes, caractérisé en ce que la voie de centrage présente des tronçons de voie qui se suivent dans le sens d'avancement (34) et présentant des angles de centrage latéralement différents si l'on se réfère au sens d'avancement (34), en ce qu'en particulier les angles de centrage grandissent ou varient constamment dans le sens d'avancement (34), et en ce que, de préférence, les angles de centrage varient progressivement, voire déterminent des mouvements de centrage plus plats et à pente plus forte d'au moins une face de centrage (13, 14) dans le sens d'avancement (34).
  16. Dispositif de positionnement selon l'une des revendications précédentes, caractérisé en ce que mise à part la face d'accostage (13) occupant une certaine position de centrage, la voie de centrage est exempte de tronçons de voie latéraux parallèles et fixes, pour empêcher pour ainsi dire tout contact par glissement d'au moins l'une des faces latérales (4 à 7) de la charge ou d'une face supérieure de la charge, orientée à l'opposé de la face de base (3) de la charge, contact qui correspond à la vitesse d'avancement de la charge isolée (2).
  17. Dispositif de positionnement selon l'une des revendications précédentes, caractérisé en ce qu'il est prévu un montage servant à présenter la charge isolée (2) debout, dans la position de centrage respective, en ce que les organes de pilotage (41) sont prévus pour bloquer pour ainsi dire complètement tous les mouvements de centrage ou d'avancement de la face d'accostage (11 à 14) respective associée lorsque la charge isolée (2) parvient en position centrée, en ce que, de préférence, les organes de pilotage (41) sont prévus pour entraîner la face d'accostage (11 à 14) correspondante avec des pas d'avancement intermittents, et en ce qu'en particulier le pas d'avancement destiné à centrer une seule charge isolée (2) faisant partie d'une série de charges isolées (2) se suivant à distance les unes des autres, est prévu dans la position de centrage.
EP93116757A 1992-10-21 1993-10-16 Dispositif de positionnement d'objets Expired - Lifetime EP0594090B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4235413 1992-10-21
DE4235413A DE4235413A1 (de) 1992-10-21 1992-10-21 Positioniervorrichtung für Stückgut

Publications (2)

Publication Number Publication Date
EP0594090A1 EP0594090A1 (fr) 1994-04-27
EP0594090B1 true EP0594090B1 (fr) 1997-01-02

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EP93116757A Expired - Lifetime EP0594090B1 (fr) 1992-10-21 1993-10-16 Dispositif de positionnement d'objets

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US (1) US5379879A (fr)
EP (1) EP0594090B1 (fr)
JP (1) JPH06219547A (fr)
DE (2) DE4235413A1 (fr)
ES (1) ES2096177T3 (fr)

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Also Published As

Publication number Publication date
DE59304963D1 (de) 1997-02-13
ES2096177T3 (es) 1997-03-01
JPH06219547A (ja) 1994-08-09
US5379879A (en) 1995-01-10
DE4235413A1 (de) 1994-04-28
EP0594090A1 (fr) 1994-04-27

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