WO2004041628A1 - Installation de transport d'objets en serie dans une chaine de manutention, en particulier pour l'industrie automobile - Google Patents
Installation de transport d'objets en serie dans une chaine de manutention, en particulier pour l'industrie automobile Download PDFInfo
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- WO2004041628A1 WO2004041628A1 PCT/FR2003/000270 FR0300270W WO2004041628A1 WO 2004041628 A1 WO2004041628 A1 WO 2004041628A1 FR 0300270 W FR0300270 W FR 0300270W WO 2004041628 A1 WO2004041628 A1 WO 2004041628A1
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- cable
- cables
- arms
- conveyors
- objects
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- 238000009434 installation Methods 0.000 title claims abstract description 97
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Classifications
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- 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
- B65G17/00—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface
- B65G17/16—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface comprising individual load-carriers which are pivotally mounted, e.g. for free-swinging movement
- B65G17/18—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface comprising individual load-carriers which are pivotally mounted, e.g. for free-swinging movement and move in contact with a guiding surface
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D65/00—Designing, manufacturing, e.g. assembling, facilitating disassembly, or structurally modifying motor vehicles or trailers, not otherwise provided for
- B62D65/02—Joining sub-units or components to, or positioning sub-units or components with respect to, body shell or other sub-units or components
- B62D65/18—Transportation, conveyor or haulage systems specially adapted for motor vehicle or trailer assembly lines
-
- 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
- B65G49/00—Conveying systems characterised by their application for specified purposes not otherwise provided for
- B65G49/02—Conveying systems characterised by their application for specified purposes not otherwise provided for for conveying workpieces through baths of liquid
- B65G49/04—Conveying systems characterised by their application for specified purposes not otherwise provided for for conveying workpieces through baths of liquid the workpieces being immersed and withdrawn by movement in a vertical direction
- B65G49/0409—Conveying systems characterised by their application for specified purposes not otherwise provided for for conveying workpieces through baths of liquid the workpieces being immersed and withdrawn by movement in a vertical direction specially adapted for workpieces of definite length
- B65G49/0436—Conveying systems characterised by their application for specified purposes not otherwise provided for for conveying workpieces through baths of liquid the workpieces being immersed and withdrawn by movement in a vertical direction specially adapted for workpieces of definite length arrangements for conveyance from bath to bath
- B65G49/044—Conveying systems characterised by their application for specified purposes not otherwise provided for for conveying workpieces through baths of liquid the workpieces being immersed and withdrawn by movement in a vertical direction specially adapted for workpieces of definite length arrangements for conveyance from bath to bath along a continuous circuit
- B65G49/045—Conveying systems characterised by their application for specified purposes not otherwise provided for for conveying workpieces through baths of liquid the workpieces being immersed and withdrawn by movement in a vertical direction specially adapted for workpieces of definite length arrangements for conveyance from bath to bath along a continuous circuit the circuit being fixed
- B65G49/0454—Conveying systems characterised by their application for specified purposes not otherwise provided for for conveying workpieces through baths of liquid the workpieces being immersed and withdrawn by movement in a vertical direction specially adapted for workpieces of definite length arrangements for conveyance from bath to bath along a continuous circuit the circuit being fixed by means of containers -or workpieces- carriers
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D13/00—Electrophoretic coating characterised by the process
- C25D13/22—Servicing or operating apparatus or multistep processes
Definitions
- the present invention relates to the design and production of installations for transporting objects in series in a handling chain comprising at least one station for processing said objects individually. It generally aims to improve the operating conditions of robotic industrial sites, in particular by authorizing high production rates thanks to better performance of transport installations in speed and flexibility, while allowing great robustness ensuring safety. costs for infrastructure investments and reduced maintenance costs.
- treatment center must be understood here in a comprehensive manner. It may be, for example, to subject the transported objects to surface treatments, to painting operations, to immerse them in chemical baths or in electrochemical treatment baths as is conventional in the paint lines of car bodies, as well as operations tending to heat or cool the objects transported, or assembly operations supplementing them with various parts.
- the invention relates more specifically to an installation in which said objects are conveyed suspended by pendulums with two symmetrical conveyors which run through the installation under the control of synchronized drive means for taking up said objects in a loading station and the transport individually to an unloading station, passing through at least one processing station for said objects.
- the so-called loading station is located at the entrance to the installation while the unloading station is located at the outlet of the installation. Installations of this kind are common, particularly in automobile manufacturing plants. These have the particularity that the objects transported, when it comes in particular to the bodies of motor vehicles, are both heavy and bulky per unit.
- the conveyors used in practice in this type of installation are currently chain conveyors, in which the pendulums which carry the boxes constituting the objects under treatment are fixed articulated to the links of. a chain driven in translation on itself along the installation, following a path which is strictly defined by guide rails whose essential role is to support the weight of all the mobile elements.
- the articulation axes of the successive links of the chain are terminated by rollers which roll trapped in the guide rails during its movement.
- the pendulums for suspending objects can be produced in various ways.
- each box rests on a support usually called “sledge”, on the grounds that it is essentially constituted by two parallel beams, called “skis”, or “skids”, which are used to drive the boxes through 'other manufacturing units, equipped with floor conveyors, and their transfer from one conveyor to another, whether they are floor conveyors or overhead conveyors like those considered here.
- installations with overhead conveyors of the type considered in the context of the present invention are particularly appreciated for ensuring the transport of the bodies of motor vehicles according to circuits involving uneven sections, when in particular the bodies must be immersed in tank treatment as found in paint lines by cataphoresis.
- the implementation of the invention has proved to be particularly advantageous in this type of situation, because the moving loads tend to be unbalanced and exert exaggerated forces on the drive chains.
- the invention plans to overcome the drive chains of current achievements and the problems they pose, by ensuring the suspension pendulum drive objects to be transported by cables which, in each conveyor, combine the role of towing means with that of means carrying the transported loads, while being held taut on guide wheels so as to define a predetermined conveying circuit.
- the invention therefore relates to an installation for transporting objects in series in a handling chain, in which said objects are transported suspended by pendulums with two symmetrical conveyors which run through the installation under the control of synchronized drive means for taking up said objects in a loading station and transporting them individually to an unloading station, passing through at least one station for processing said objects, characterized in that, in each of said conveyors, said pendulums are hooked in fixed positions distributed along a cable which is moved by said drive means while it is kept stretched on guide wheels defining a predetermined conveying circuit , and in that the loads thus suspended from said cable by means of the pendulums are exclusively carried by said cable between said guide wheels.
- said cable constitutes means both tractors and carriers for said objects, and that on the sections of the path followed located between the guide wheels, it is free to contribute to ensuring, or even ensuring to alone, balancing the pendulums and the vertical loads, by an elastic return effect in torsion of the cable.
- guide wheels when we speak of guide wheels in general, they may be individual wheels that are distant from each other as well as the whole, wheels playing an equivalent role in ensuring frictional guide contact with the cable.
- the distance between two successive guide assemblies covers a different distance from the distribution pitch of the pendulums , or more generally the distance between two pendulums supporting the same load.
- the other pendulum associated with the same load and the same cable is necessarily in an area of the circuit where the cable is free of all guide.
- This balancing capacity which comes to replace all or part of the freely articulated mounting in transverse direction of previously known installations, is particularly appreciable in installations where the path followed by the objects to to treat involves unevennesses, which is in particular the case, for the factories of automobile manufacture, in the lines of painting of the cases of motor vehicles by phosphating or in lines where it is applied a surface treatment to them by cataphoresis, since the cases must be immersed in a tank containing a treatment bath before entering a drying cabin.
- the invention provides various advantages which translate into additional characteristics.
- the flexibility of the tractor carrying cable allows very strong bends, hence relatively short uneven journeys to go from one level of treatment to another and an overall reduction in the length of the installation. It is then desirable that the tractor carrying cable is free from any guidance in its current strand on the sloping section passing from one level to the other, as soon as it is sufficiently taut to present a slope always remaining in the same meaning. This makes better use of the elastic return effects in lateral balancing of the loads as they pass through the tank which are linked to the flexibility of the cables.
- the tractor carrying cables used in accordance with the present invention also have the advantage of facilitating the realization of installations of reduced bulk in the transverse direction, insofar as the same flexibility of the cables, makes it possible to mount the arms of the pendulums in door - false, to reach a point of attachment to a sledge for receiving an automobile body located under this body, bypassing the latter. Achievements of this type are said to be narrow sleds, by distinction with the case of sleds having projections for gripping by pendulum arms which protrude laterally from the size of the object transported, so that the arms are vertically hanging.
- the implementation of the installation involves an adjustment stage prior to its normal operation, essentially consisting in tensioning the cables, by pulling each of them to one of the ends of the installation, to bring them to their maximum elongation before fixing on the various pendulum arms, in positions in mutual correspondence (between the two conveyor lines) for the suspension of the objects to be transported.
- the installation according to the invention advantageously includes tensioning means suitable for each of the cables which it comprises.
- tensioning means suitable for each of the cables which it comprises.
- Such means of tensioning a cable are in themselves conventional.
- each of the moving cables describes a closed loop comprising a part of the so-called active conveying circuit, or strand going, from the station for loading objects to the station for unloading, passing through the treatment station (s), and an inactive circuit part, or return strand, bringing the pendulum arms alone, empty, from the unloading at the loading station to load a new object to be processed.
- the means for tensioning each cable can then advantageously include a cable return wheel mounted mobile under the action of a jack so as to move it away from the rest of the installation and thus lengthen the loop traversed by the cable. . If necessary, this return wheel can also act as a driving wheel engaged on the cable to ensure its drive in a closed loop.
- each such cylinder can be permanently mounted to continue to exert its tightening effect when the installation is in operation, or be disassembled once the cables are extended, after having locked the idler wheel in a fixed position. by which the traction was exerted.
- the invention provides for constituting the tractor means carrying the objects, on each of the conveyor lines, by two coupled cables. , between which are located the attachment points of the pendulum arms.
- the coupling between the two cables of each conveyor is advantageously ensured, at the level of each pendulum arm, by a clip for hooking the latter which is engaged on one and the other of the cables.
- the solution with two coupled cables has the advantage of distributing the forces exerted on the cables, of allowing smaller cable sections promoting their usable flexibility according to the invention, of avoiding lateral swinging of the arms which would be disruptive for the proper functioning of the installation.
- the arms are mounted free to pivot in rotation about a transverse axis, more particularly perpendicular to the conveyor line, therefore from front to back in the conveying direction.
- This freedom of orientation in the vertical longitudinal plane is useful for several reasons. First of all, it is generally necessary, at least in a small angular interval around the vertical, for the operations of taking charge and releasing the loads, in particular of the sleds on which car bodies commonly rest, which require locking or unlocking respectively the lower ends of the pendulum arms on sleepers of sleds equipped with cooperating crankpins.
- the conveyor cables describe closed loops remaining in the same vertical plane, preferably with a return path of the arms placing themselves above treatment stations for transported objects, in particular when it comes to treatment stations in vats imposing differences in level. Indeed, it is desirable that over their entire path, the cables work in the curved areas in the same plane as when they pass over the drive wheels or the return wheels or guide wheels on which they are stretched.
- the pendulum arms can advantageously constitute the position markers used for this regulation.
- FIG. 1 shows schematically, in top view, the general structure of a first embodiment of the installation according to the invention
- - Figure 2 shows schematically, in side view, a similar installation in which the boxes undergo a tank treatment in a cataphoresis bath;
- Figure 3 schematically illustrates, for an installation according to Figure 1 in side view, a box during transport as suspended by the sledge which carries it to cables of single-cable conveyors;
- FIG. 4 shows schematically the installation at the same box, seen from behind in direction A of Figure 3, and it shows the section line BB used for Figure 3;
- FIG. 5 is the counterpart of Figure 4 for an installation with two twin-cable conveyors, in which further each cable travels in a closed loop lying in the same vertical plane;
- FIG. - Figure '6 is a schematic side view of the same installation along the section line CC of Figure 5, which highlights the position of the pendulum arms at the passage of the loading end;
- FIG. 7 shows in more detail a form of construction of a cable tensioning system, assumed to be located the end of the installation corresponding to the unloading station;
- FIGS 8 and 9 are respectively side and front views of a pendulum arm showing it in its mechanical relationships with the tractor carrying cable of a single cable conveyor such as that of Figures 3 and 4, by placing more particularly in the case of an installation with narrow sleds;
- an installation intended for the automobile industry is considered, more specifically a handling chain in which the individually transported objects suspended from two parallel conveyors are bodywork bodies 5 each resting on the support which it is agreed to call a sledge 3, on which four independent suspension arms 4 are hooked 4 (FIG. 3), also referenced 4R on the right and 4L on the left (FIG. 1 ) when one places oneself in the direction of movement it is glossed by the arrow A in the figures.
- This solution is generally more advantageous, in particular for optimal use of the flexibility of the cables used as tractor means also carrying loads, than that which consists in suspending the boxes, with or without a sledge support, by two rigid pendulums, each connecting two solidary arms respectively falling under the two parallel conveyors, one of the pairs of arms forming the pendulums located at the front and the other at the rear of each transported box.
- both conveyors 6 equipping the installation are each with a single tractor carrying cable 60 (or 60L and 60R respectively), and on the other hand, each cable is driven in translation on itself to describe a loop which closes in a horizontal plane at each end of the installation.
- the two cables are laterally spaced in the middle part of the installation.
- each of the successive loads is, respectively, either taken by four pendulum arms of the installation from a conveyor on the ground having brought it to an elevator-descender system 71 (figure 2), or deposited on a symmetrical elevator-descender system 81 by which it passes over another conveyor on the ground once its treatment in the installation of the invention has ended.
- each pendulum arm 4 (or 4R, 4L) is constituted, in a manner in itself conventional, and described for example in the European patent already cited , so as to form a gripping hook for a cooperating crank pin 30 provided on a sledge 3 (FIG. 3).
- each sledge 3 Under a spacing equal to the pitch separating two successive arms of each conveyor, each sledge 3 comprises two crankpins 30 on each side, respectively on the two longitudinal skis of the sledge, at the ends of crosspieces connecting the two skis in a rigid set.
- the hooks 42 (FIG.
- each pendulum arm 4 is assembled to the cable 60 by a pivot system 43 and clamp 45 (FIG. 9) which maintains it in a position remaining permanently fixed on the moving cable while leaving it complete freedom to pivot in the vertical plane of the conveyor.
- the conveyor illustrated in FIG. 9 being with a single cable (single cable version of an installation according to the invention), provision has been made in this case for a cantilevered suspension of the sleds, the arms 4 being shaped bent and in curve towards the outside of the vehicle body to join a so-called narrow sledge.
- the cables 60 are constituted in a conventional manner, by a plurality of strands wound in a helical twist around a central core, each strand itself being advantageously formed of several strands of metal wires assembled in a spin.
- the conveying circuit closes in a loop by passing around a driving wheel 61 L or 61 R which pulls the cable along its active portion in transporting loads from the outlet end of the installation, at the unloading station 8, and around a deflection wheel 62L or 62R located at the opposite end, at the loading 7.
- the drive wheel 61 L, 61 R of pulley type, drives the corresponding cable 60 by non-sliding contact in its sheave.
- the return wheel 62L, 62R also of pulley type, is mounted in free rotation on the fixed frame.
- each cable 60 is defined by guide wheels 63, distributed along the installation.
- guide wheels are found in particular where unevennesses must be imposed as is the case for the treatments carried out in a tank as in FIG. 2. It is observed, in particular from the side views of FIGS. 2 and 3, that the distance between two successive guide wheels (or between two equivalent groups of guide wheels as illustrated in FIG. 2) is greater than the pitch of the pendulum arms along the cables.
- FIG. 1 schematically illustrates the presence of geared motors ML and MR which drive the drive wheels 61 L and 61 R respectively. They are supplied independently of one another with electric power under servo-control in speed and position.
- a control circuit 9 delivers to the gearmotors ML and MR, respectively, alternating supply voltages AL and AR which are determined so as to ensure a synchronous drive of the cables, with speed and position control, between the two conveyors 6L and 6R.
- One of the conveyors is controlled by the circuit 9 as a master conveyor and the other conveyor is controlled as a slave conveyor, controlled in speed and in position by the master conveyor.
- the master conveyor is controlled so as to ensure a speed of movement of the cable in accordance with a speed setpoint V.
- the feedback feedback loops on the controls of the ML and MR gearmotors are produced respectively using SL and SR sensors, consisting for example of optical sensors associated with the conveyors 6L and 6R, respectively.
- the position markers can be constituted by marks 66 (FIG. 1) made on the cables themselves and distributed at identical regular intervals along their length. According to a preferred variant, the function of the position markers of the cables is fulfilled by the pendulum arms 4L and 4R, or better still by the members which provide the connection between each pendulum arm and the cable to which it is attached (clamp system 45).
- the servo control provided by the circuit 9 is determined to ensure the alignment of the pendulums 4L and 4R between the two sides of the installation on the same transverse. It makes it possible to make up for a possible differential slip of the cables on their driving wheels, so that a correct position relationship is always maintained between the pendulum arms and the sleds.
- the guide wheels 63L and 63R are mounted to rotate by their respective axes in fixed positions of the installation, which is illustrated in FIGS. 3 and 4 by mounting on upper parts of the uprights, vertical, 64L and 64R.
- the uprights 64L and 64R are aligned respectively along the two longitudinal axes of the conveyors 6L and 6R, parallel to the direction of movement A, with a predetermined lateral spacing between them , corresponding to the width of the loads to be transported.
- the homologous wheels of a 63L-63R couple are mounted on opposite faces opposite the amounts 64L and 64R, on the side internal of these, and that their axes are located in the same horizontal plane common to the two conveyors 6L and 6R.
- the same amounts are used symmetrically, each on the external side, to support guide wheels 65a or 65b, which are used to guide the same cable, respectively left or right, on its return strand of the vacuum arms.
- An important variant of the assembly illustrated here would consist in reversing the position between guide wheels and pendulum arms, by mounting the axes of rotation of the wheels inside of brackets transversely extending the support upright or an equivalent beam.
- Figures 8 and 9 show more precisely, still for an installation with single-cable conveyors, the mechanical relationships existing between a guide wheel 63, the corresponding cable 60 (that of the left conveyor 6L in this case) and a pendulum arm 4, the latter being represented when it passes over the guide wheel 63.
- a guide wheel 63 that of the left conveyor 6L in this case
- a pendulum arm 4 the latter being represented when it passes over the guide wheel 63.
- these figures and their description would be symmetrically identical for the corresponding members of the installation considered no longer on the left conveyor, but on that of the right side of the installation.
- the guide wheel 63 has a sheave groove for receiving the cable 60 while preventing it from shifting laterally relative to its normal path. It is mounted in free rotation on a horizontal axis, linked in a fixed position on the corresponding 64L upright.
- the pendulum arm 4 is, for its part, mounted to rotate freely on a hinge pin materialized by a rod 47 which turns around in a pivot ring 43 and extended by a clamp 45 which is firmly clamped on the cable, so that the articulation axis of the arm is thus fixed integral with the cable.
- the articulation axis is oriented perpendicular to the cable and in the horizontal plane defined by the parallel cables of the two conveyors. In other words, the assembly of the arm on the cable is ensured so as to permanently allow its oscillation from front to back (and vice-versa), in the normally vertical plane of its movement as defined by the circuit. conveyor.
- the installation according to the invention involves pendulum arms 4 of simpler design, in particular because reducing the number of degrees of freedom in the assembly between each pendulum arm and the corresponding towing cable.
- FIG. 2 Another preferred embodiment of the installation for transporting objects according to the invention is chosen for the treatment line illustrated in FIG. 2, comprising a step where the boxes 5 on their sleds 3 must be immersed in a water bath. electrolyte contained in a tank 2.
- FIGS. 5 and 6 also have the advantage of illustrating this solution of conveyors in a vertical plane whether the circuit in its outward strand has unevennesses or not. Such a design responds to a constraint of minimum overall width.
- the installation is shown here in a version equipped with wide sleds, on which the suspension arms hang directly above the cables on each side.
- each conveyor is of the so-called twin-cable type.
- the two cables are driven in synchronism along the conveying circuit, to follow strictly parallel paths, and each pendulum arm is mounted hanging between the two, in a fixed position on the two cables.
- the two cables are thus coupled by means of assembly devices fixing the articulation axis of the pendulum arms to the cables.
- the four cables are driven in synchronism and perfectly positioned between them, so as to relieve the forces that can be exerted on the assembly devices between cables and pendulum arms.
- the same control system with servo-control is used at least in speed, and preferably also in position, as that which has been described previously for the installation with two single-cable conveyors, except that the control circuit is adapted to control the motors. respectively.
- the pendulum arms, at their attachment to the cables are advantageously used to constitute position markers repeating regularly over the entire length of each circuit.
- the conveyor 6L essentially comprises two tractor carrying cables, 60aL and 60bL, driven in displacement on themselves respectively on parallel paths which are each defined by a plurality of guide wheels 63aL, or 63bL respectively.
- the conveyor 6R essentially comprises, symmetrically, two tractor carrying cables 60aR, 60bR, stretched over a path defined for each by a plurality of guide wheels 63aR, 63bR.
- the cables 60aL and 60bL thus respectively describe two opposite loops according to the conveying circuit of the left conveyor, and the cables 60aR and 60bR respectively describe two opposite loops according to the closed loop circuit of the right conveyor.
- the two circuits, therefore the four closed loop routes, are located in parallel vertical planes, and they have identical shapes at each point at the same horizontal level.
- the fixed frame supporting, by their respective axes, the different guide wheels (referenced 63 in FIG. 6, or 63aL, 63bL, 63aR, 63bR in FIG. 5) is illustrated in the form of vertical gantries 64 essentially each comprising two lateral uprights joined by a high horizontal beam 64H and completed by two intermediate uprights 64'L and 64'R. It is in the space provided between each lateral upright and the intermediate upright opposite, that the cable guide wheels are mounted.
- the interval left free between two facing wheels, falling respectively from the two cables of the same conveyor, is sufficient for a pendulum arm driven by the two coupled cables to pass freely hanging between them, without shock or friction. This interval is in practice chosen sufficient to also accept the lateral deflections that can allow the natural flexibility of the stretched cables when the installation is in operation.
- the return path of the pendulum arms 4 is partially shown in FIG. 6 for the pendulum arms of the right conveyor of FIG. 5. It can be seen there that the arms 4 return towards the loading end in the folded horizontal position, so falling back up.
- a guide rail 40 is installed in order to bring and maintain the arms in this position when they move empty in the inactive portion of the transport loops, along the return strand lying, as shown, in the upper part, above the strand go, in the same vertical plane. It will also be noted that it may be advantageous to shorten the circuit in its return part of the vacuum arms, by providing a substantially straight horizontal path there to return from the unloading station to the loading station, even in the case of a one-way trip with unevenness like that in FIG. 2. Furthermore, the guide wheels can be substantially more distant there, without having to fear that the stresses in tension of the cables are insufficient to prevent them from taking an arrow which could be troublesome .
- FIG. 6 also illustrates an alternative embodiment of the installation according to the invention in which the return wheel passing a cable from the outward journey to the return journey is in fact constituted by an assembly of several wheels 62, guiding the curvature of the cable on
- Figures 1 0 and 1 1 show more specifically, for one of the two conveyors of the installation according to the preferred embodiment of double cable conveyors, the mechanical relationships existing between the wheels 63a and 63b of a pair of wheels guide, the corresponding coupled cables 60a and 60b and a pendulum arm
- the cable guide wheels have sheaves receiving the corresponding tensioned cable to prevent it from deviating laterally from its path, without, however, slowing down its longitudinal movement on itself. They are mounted in free rotation on themselves, around their respective axes, on fixed beams of the installation, 65a and 65b. As already indicated, a sufficient spacing is provided between the wheels 63a and 63b facing each other, so as to allow the passage of the pendulum arms 4, freely hanging between them.
- FIG. 12 As for the system ensuring the pivoting assembly of the arms on the cables as well as the coupling of the two cables of the same conveyor, it appears in more detail in FIG. 12, where we see an arm 4 hanging between two wheels 63a and 63b, free to rotate on fixed frame elements 64.
- the arm 4 ends in an articulation piece illustrated by a ring 43, in which a pin 46 journals, and which is retained laterally by crowns mounting 48.
- the ring 43 forms a rolling bearing cage with a horizontal axis perpendicular to the transport line and centered in the plane of the coupled cables.
- the rotary spindle 46 is extended by two opposite tabs, 47a and 47b respectively.
- Each clamp 45a or 45b is, in practice formed of two jaws 68 and 69, one above the other, which are fixed tight against the cable, on one side on the lug extending the ring 46 of the articulated mounting , and on the other side on a block of thickness 49. In industrial practice, each block can be melted in one piece with one of the jaws of the corresponding clamp.
- FIG. 7 also refers to a particular form of implementation of the invention, in a version of the installation with two twin-cable conveyors, to illustrate the means of tensioning the cables prior to assembly. pendulum arms which were discussed at the beginning of this description.
- each of the conveyors 6L and 6R is associated with a plate 82 which is mounted movable by longitudinal translation on two longitudinal members of the fixed frame 64.
- Each plate 82 carries with it two lateral plates which do not have have have been shown to reveal that they support between them the movable members associated respectively with the two cables of the corresponding conveyor.
- FIG. 2 illustrates the invention in a particular embodiment of the conveying circuits where each transported box must not only be immersed in a tank 2, but also undergo electrolytic treatment there.
- the tank 2 containing an electrolyte bath 20 is connected by electrodes 35 to the positive terminal 32 of a current source 9, the negative terminal 31 of which is assumed to be the electrical ground T.
- Any box 5 immersed in the tank is brought to ground potential T by means of an electrical connection which takes place via the suspension arms 4.
- These are made for this purpose from ' metallic materials having good electrical conductivity in the mass. Good electrical contact is also ensured up to the cash desk itself via the sledge 3.
- the mass circuit organized for this purpose comprises an electric rail 33 running parallel to the cable circuit on its outward path, and each arm 4 is equipped at its upper end with a spring pantograph or similar device pushing elastically on a shoe 34 to keep it in sliding electrical contact with the rail 33.
- This device can be completed by an electrical connection braid between the shoe and the arm 4 itself.
- the cable guide wheels are electrically insulated to prevent current leakage to the structural members, which are generally metallic.
- the possibility that the cables have of making electrical conductors is exploited in order to dispense with certain of the pad devices 41. More specifically, such pads are provided for one arm out of two along a cable 60. it will preferably be to equip the arm 4 which comes first to hang on a sledge 3. 'then ensures good electrical contact between each arm and the corresponding carrying cable, at the articulated assembly device. The same quality of electrical contact is ensured, not only for the arm attached to the front of the sledge, which is put directly to the electrical ground by a shoe device 34, but also for the arm positioned at the rear.
- the ground circuit includes the cable 60 for its section located between the two arms engaging with the same sled, one to the 'before the other at the back.
- the same provisions are adopted for the electrical ground circuit associated with the second conveyor, on the other side of the conveyor line.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Manufacturing & Machinery (AREA)
- Chain Conveyers (AREA)
- Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
- Warehouses Or Storage Devices (AREA)
- Intermediate Stations On Conveyors (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
- Forklifts And Lifting Vehicles (AREA)
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
- Discharge Of Articles From Conveyors (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
MXPA05004433A MXPA05004433A (es) | 2002-10-23 | 2003-01-28 | Instalacion de un sistema de transporte de objetos en serie en una cadena de manutencion, en particular para la industria automovil. |
DE60307879T DE60307879T2 (de) | 2002-10-23 | 2003-01-28 | Pendelförderer für die kraftfahrzeugindustrie |
US10/532,411 US20060180470A1 (en) | 2002-10-23 | 2003-01-28 | Installation for sequentially transporting objects in a goods handling line, in particular for the automotive industry |
EP03715062A EP1560745B1 (fr) | 2002-10-23 | 2003-01-28 | Installation de transport d'objets en serie dans une chaine de manutention, en particulier pour l'industrie automobile |
BR0315556-0A BR0315556A (pt) | 2002-10-23 | 2003-01-28 | Instalação de transporte de objetos em série em uma cadeia de manutenção |
AU2003219259A AU2003219259A1 (en) | 2002-10-23 | 2003-01-28 | Installation for sequentially transporting objects in a goods handling line, in particular for the automotive industry |
CA002503615A CA2503615A1 (fr) | 2002-10-23 | 2003-01-28 | Installation de transport d'objets en serie dans une chaine de manutention, en particulier pour l'industrie automobile |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US42065702P | 2002-10-23 | 2002-10-23 | |
US60/420,657 | 2002-10-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004041628A1 true WO2004041628A1 (fr) | 2004-05-21 |
Family
ID=32312471
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2003/000269 WO2004041627A1 (fr) | 2002-10-23 | 2003-01-28 | Convoyeur aerien a bras pendulaires entraines suivant un circuit en boucle fermee |
PCT/FR2003/000270 WO2004041628A1 (fr) | 2002-10-23 | 2003-01-28 | Installation de transport d'objets en serie dans une chaine de manutention, en particulier pour l'industrie automobile |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2003/000269 WO2004041627A1 (fr) | 2002-10-23 | 2003-01-28 | Convoyeur aerien a bras pendulaires entraines suivant un circuit en boucle fermee |
Country Status (14)
Country | Link |
---|---|
US (1) | US20060180470A1 (fr) |
EP (2) | EP1560744A1 (fr) |
CN (1) | CN1688475A (fr) |
AT (1) | ATE337218T1 (fr) |
AU (2) | AU2003219259A1 (fr) |
BR (1) | BR0315556A (fr) |
CA (1) | CA2503615A1 (fr) |
CO (1) | CO5690625A2 (fr) |
DE (1) | DE60307879T2 (fr) |
ES (1) | ES2271554T3 (fr) |
MX (1) | MXPA05004433A (fr) |
RU (1) | RU2005116221A (fr) |
WO (2) | WO2004041627A1 (fr) |
ZA (1) | ZA200504062B (fr) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102040076A (zh) * | 2011-01-07 | 2011-05-04 | 江苏天奇物流系统工程股份有限公司 | 积放双链座椅输送线 |
WO2016050550A1 (fr) * | 2014-09-30 | 2016-04-07 | Dürr Systems GmbH | Dispositif de transport, système de séchage et procédé de transport de pièces |
EP3379708A1 (fr) * | 2017-03-21 | 2018-09-26 | Rockwell Automation Technologies, Inc. | Topologie de conversion ca/cc réglable afin de réguler une charge de courant continu isolée avec une faible ondulation ca |
US11167305B2 (en) | 2016-04-13 | 2021-11-09 | Eisenmann Se | Method and production system for producing vehicles, and surface treatment system for treating the surface of vehicle bodies |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102008036321A1 (de) * | 2008-07-29 | 2010-02-04 | Dürr Systems GmbH | Lackieranlage zum Lackieren von zu lackierenden Gegenständen |
DE102009052592A1 (de) | 2009-11-10 | 2011-05-12 | GM Global Technology Operations LLC, Detroit | Fördereinrichtung |
DE102012023765A1 (de) * | 2012-12-05 | 2014-06-05 | GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) | Karosseriehaltevorrichtung zum Halten einer Fahrzeugkarosserie auf einem Fahrzeugchassis und Montageverfahren |
JP6190856B2 (ja) * | 2015-09-10 | 2017-08-30 | 株式会社ダイフク | 吊下げ搬送装置 |
DE102015012001A1 (de) * | 2015-09-18 | 2017-03-23 | Eisenmann Se | Fördervorrichtung zum Fördern von Transportstrukturen |
IT201700088764A1 (it) * | 2017-08-01 | 2019-02-01 | Geico Spa | Impianto per il trattamento ad immersione di scocche |
CN107628441A (zh) * | 2017-09-29 | 2018-01-26 | 湖州吴兴锐质自动化输送设备厂(普通合伙) | 一种涂装生产线的传输装置 |
CN108163452A (zh) * | 2017-12-07 | 2018-06-15 | 中国汽车工业工程有限公司 | 一种设置有轨道补偿结构的升降机 |
CN112313041A (zh) * | 2018-06-15 | 2021-02-02 | 杰艺科股份公司 | 用于移动交通工具主体的设备 |
CN111003407B (zh) * | 2018-10-08 | 2021-07-27 | 纬创资通(成都)有限公司 | 生产线补料方法及补料装置 |
US10556749B1 (en) * | 2018-12-31 | 2020-02-11 | Ppg Industries Ohio, Inc. | Conveyor system including an incrementally adjustable lift frame |
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EP1104737A1 (fr) | 1999-12-01 | 2001-06-06 | Dürr Automotion | Dispositif de transfert d'objets |
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- 2003-01-28 ES ES03715062T patent/ES2271554T3/es not_active Expired - Lifetime
- 2003-01-28 MX MXPA05004433A patent/MXPA05004433A/es not_active Application Discontinuation
- 2003-01-28 BR BR0315556-0A patent/BR0315556A/pt not_active IP Right Cessation
- 2003-01-28 EP EP03715061A patent/EP1560744A1/fr not_active Withdrawn
- 2003-01-28 AU AU2003219259A patent/AU2003219259A1/en not_active Abandoned
- 2003-01-28 WO PCT/FR2003/000269 patent/WO2004041627A1/fr not_active Application Discontinuation
- 2003-01-28 US US10/532,411 patent/US20060180470A1/en not_active Abandoned
- 2003-01-28 CA CA002503615A patent/CA2503615A1/fr not_active Abandoned
- 2003-01-28 DE DE60307879T patent/DE60307879T2/de not_active Expired - Fee Related
- 2003-01-28 CN CN03824500.0A patent/CN1688475A/zh active Pending
- 2003-01-28 RU RU2005116221/11A patent/RU2005116221A/ru not_active Application Discontinuation
- 2003-01-28 EP EP03715062A patent/EP1560745B1/fr not_active Expired - Lifetime
- 2003-01-28 WO PCT/FR2003/000270 patent/WO2004041628A1/fr not_active Application Discontinuation
- 2003-01-28 AT AT03715062T patent/ATE337218T1/de not_active IP Right Cessation
- 2003-01-28 AU AU2003219258A patent/AU2003219258A1/en not_active Abandoned
-
2005
- 2005-05-19 ZA ZA200504062A patent/ZA200504062B/en unknown
- 2005-05-20 CO CO05049224A patent/CO5690625A2/es not_active Application Discontinuation
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US5718320A (en) * | 1995-05-23 | 1998-02-17 | Air Industrie Systemes - A.I.S. | Cantilevered twin-chain skid-platform conveyer |
FR2756815A1 (fr) * | 1996-12-10 | 1998-06-12 | Sietam Ind | Dispositif et installation de transport d'objets passant par des cuves de traitement, notamment de carrosseries automobiles |
WO2000078594A1 (fr) * | 1999-06-21 | 2000-12-28 | Helmut Lehmer Gmbh | Procede et dispositif pour transporter des charges |
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GB2373768A (en) * | 2000-09-22 | 2002-10-02 | Honda Motor Co Ltd | Overhead conveyor |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
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CN102040076A (zh) * | 2011-01-07 | 2011-05-04 | 江苏天奇物流系统工程股份有限公司 | 积放双链座椅输送线 |
WO2016050550A1 (fr) * | 2014-09-30 | 2016-04-07 | Dürr Systems GmbH | Dispositif de transport, système de séchage et procédé de transport de pièces |
US11167305B2 (en) | 2016-04-13 | 2021-11-09 | Eisenmann Se | Method and production system for producing vehicles, and surface treatment system for treating the surface of vehicle bodies |
EP3442717B1 (fr) * | 2016-04-13 | 2022-08-17 | Eisenmann GmbH | Procédé et installation de fabrication pour la fabrication de véhicules et installation de traitement de surface pour le traitement de surface de carrosseries de véhicule |
EP3379708A1 (fr) * | 2017-03-21 | 2018-09-26 | Rockwell Automation Technologies, Inc. | Topologie de conversion ca/cc réglable afin de réguler une charge de courant continu isolée avec une faible ondulation ca |
US10947636B2 (en) | 2017-03-21 | 2021-03-16 | Rockwell Automation Technologies, Inc. | Adjustable AC/DC conversion topology to regulate an isolated DC load with low AC ripple |
US11976376B2 (en) | 2017-03-21 | 2024-05-07 | Rockwell Automation Technologies, Inc. | Adjustable AC/DC conversion topology to regulate an isolated DC load with low AC ripple |
Also Published As
Publication number | Publication date |
---|---|
CN1688475A (zh) | 2005-10-26 |
ES2271554T3 (es) | 2007-04-16 |
MXPA05004433A (es) | 2005-11-23 |
EP1560745B1 (fr) | 2006-08-23 |
RU2005116221A (ru) | 2005-11-20 |
ZA200504062B (en) | 2006-02-22 |
DE60307879T2 (de) | 2007-04-12 |
WO2004041627A1 (fr) | 2004-05-21 |
EP1560745A1 (fr) | 2005-08-10 |
DE60307879D1 (de) | 2006-10-05 |
US20060180470A1 (en) | 2006-08-17 |
BR0315556A (pt) | 2005-08-23 |
CA2503615A1 (fr) | 2004-05-21 |
AU2003219258A1 (en) | 2004-06-07 |
AU2003219259A1 (en) | 2004-06-07 |
ATE337218T1 (de) | 2006-09-15 |
CO5690625A2 (es) | 2006-10-31 |
EP1560744A1 (fr) | 2005-08-10 |
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