WO2000040489A1 - Convoyeur a chaines, tel que carrousel pour machine d'installation logistique, et machine telle que pour le tri d'objets plats - Google Patents
Convoyeur a chaines, tel que carrousel pour machine d'installation logistique, et machine telle que pour le tri d'objets plats Download PDFInfo
- Publication number
- WO2000040489A1 WO2000040489A1 PCT/FR1999/003313 FR9903313W WO0040489A1 WO 2000040489 A1 WO2000040489 A1 WO 2000040489A1 FR 9903313 W FR9903313 W FR 9903313W WO 0040489 A1 WO0040489 A1 WO 0040489A1
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- WO
- WIPO (PCT)
- Prior art keywords
- chain
- conveyor
- link
- sections
- links
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G23/00—Driving gear for endless conveyors; Belt- or chain-tensioning arrangements
- B65G23/24—Gearing between driving motor and belt- or chain-engaging elements
- B65G23/30—Variable-speed gearing
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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
- B65G17/30—Details; Auxiliary devices
- B65G17/38—Chains or like traction elements; Connections between traction elements and load-carriers
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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
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
- B65G47/82—Rotary or reciprocating members for direct action on articles or materials, e.g. pushers, rakes, shovels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G13/00—Chains
- F16G13/18—Chains having special overall characteristics
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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
- B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
- B65G2201/02—Articles
Definitions
- Chain conveyor such as carousel for logistic installation machine, and machine such as for sorting flat objects
- the invention relates to a chain conveyor, for example for a sorting machine for flat objects, and a machine for logistics platform equipment, such as a postal sorting center and the like.
- Objects brought in and sorted by machine means must be brought to a given destination and are grouped in sorting bins.
- an empty container transporter is placed along and next to the filling stations.
- Each pendulum transfer ensures a horizontal thrust at the rear of an empty tank which comes into contact with the full tank.
- This transfer device comprises a pendulum lever controlled by a connecting rod driven in rotation by a motorization assembly.
- the kinematic connection between the connecting rod and the lever is a sliding connection, having the advantage of a movement without reversing the direction of rotation of a motorized assembly.
- the conveyors often arranged laterally towards the outside of the machine, are provided so that the empty trays are advanced step by step, with disengageable tracks.
- the invention aims to overcome these drawbacks in particular, by ensuring a central revolving stock of objects to be transferred, permanently available, for example inside a logistics machine.
- the permanent availability of the objects means that it must allow a continuous supply of these objects to and / or from the machine.
- the invention aims to provide a conveyor ensuring precise positioning of the objects entering and leaving the rotating stock.
- the input objects must be aligned in a precise position in front of the output objects, and vice versa.
- the invention also aims to allow a high rate of loading / unloading of objects in the rotating stock from and / or to the logistics machine. For example, machines provide several hundred loading / unloading stations, and require a rate of the order of an object loaded / unloaded every 4 or 5 seconds.
- a first object of the invention is a conveyor of three-dimensional objects, with a chain in a closed loop, for example for a sorting machine for flat objects.
- the chain comprises sections with links comprising respectively or each of the object reception means, these links being: self-supporting on a track possibly devoid of directional guides, - mutually connected by articulations with low positive tolerances of operation and wear , distinctly guided from the carrying, in a guide rail, and fixed center distance, substantially equal to the distance separating two adjacent positions of loading / unloading of an object, these links being called of fixed length.
- At least two adjacent sections are connected by a variable-distance link called a “tensioner”, with a structure similar to that of a fixed link, except that it has tensioning means capable of automatically adjusting the distance between its articulation axes with two adjacent links, by permanently exerting a tension force tending to bring these axes closer, the force of which is determined to be greater than a maximum force of motorization of the chain.
- tensioner a variable-distance link
- the conveyor comprises means for detecting the position of a fixed or variable link, relative to a reference location where the object must be loaded / unloaded, connected to a motorization of the conveyor to allow a uniformly varied slowing down and without - a lot of chain when approaching this location, then stop the chain at reduced speed conveying in a precise position opposite this location.
- the guide rail has at least two curved sections and two straight sections, each curved section comprising adjustment devices making it possible to individually move this curve, arranged to ensure chain tension, as well as a relative adjustment of the location of the sections straight relative to each other, as soon as the chain is immobilized by the motorization, which also acts as a brake.
- these two sections are connected by an adjustable link which allows play to be taken up without tension.
- this embodiment provides a link which comprises sliding means for connecting its two parts, for adjusting the length of the chain, and means for immobilizing at an appropriate center distance, here clamping screws.
- embodiments comprise at least one such tensioning link, or at least one link with backlash, while other embodiments comprise these two types of links.
- other embodiments may include only links with a fixed center distance.
- the sections with fixed, variable and / or adjustable links make it possible to concentrate all of the cumulative tolerances on a section at the level of the connecting links between sections, and not on each link or articulation, which is more complex.
- the overall tolerance over the entire chain is therefore equal to the product of the stroke available at each variable and / or adjustable link, by the number of sections of the chain.
- the invention thus allows handling for the supply at the inlet, and the outlet at the outlet of three-dimensional objects, in which the positioning of the objects is ensured precisely, in alignment and continuously, possibly over several floors.
- the invention can in particular be applied to the conveyance and / or sorting of baggage on airport sites.
- each link of fixed and / or variable and / or adjustable length comprises on its lower part at least one bearing roller, for example central, and at least one and for example two guide rollers respectively lower and upper, each roller cooperating with a gutter of the guide rail.
- the latter is arranged in bi-plane with a horizontal conveyor then inclined to go up and down, according to the locations along the conveyor.
- each link with variable distance between axes is divided transversely into two parts connected by the tensioning means, for example elastic means such as spring.
- the elastic means of the various links with variable distance between axes are arranged to, in combination, ensure the tension of the chain.
- At least one link comprises sliding means for connecting two parts, for adjusting the length of the chain, and means for immobilizing at an appropriate center distance, such as screws for tightening the two parts. between them.
- each link is articulated to one of the adjacent links around the axis of at least one guide roller.
- each link here forms a fork or female yoke with two branches crossed substantially perpendicularly by the axis of the guide rollers, and the other end forms a male yoke pierced with a hole, arranged to engage between the branches of the fork of another link with the axis of the guide rollers passing through the hole.
- each link includes receiving means for three-dimensional objects such as empty containers.
- the receiving means are neither oriented nor offset laterally, so as to be arranged substantially centered above the chain.
- these receiving means comprise at least one receiving plate, for example inclined in a direction such as that of advance of the chain, a stop such that the lower edge of the plate folded back substantially at right angles, this stop ensuring the wedging in position of the object placed on the tray.
- the receiving plate is mounted cantilevered on the link, and is provided with an auxiliary carrying roller, arranged to roll on an auxiliary rolling track.
- At least one link in the chain directly carries an object, the receiving means then being formed by a clean part of the link.
- the conveyor comprises at least two substantially rectilinear sections called useful, with a plurality of inlets and outlets respectively, and at least two curved cusp sections, arranged in a closed loop.
- each curved section there is then provided in each curved section, means for varying the total length of the guide rail.
- this length is less than the nominal length, in the case of a chain fitted with tension links.
- each object is thus placed in front of each loading / unloading station under a tolerance of widely acceptable precision.
- the conveyor of the invention has more than two straight sections and / or more than two curved sections.
- an embodiment provides an arrangement for example in plan forming a closed loop having a plurality of spokes with at each end a curved section.
- the conveyor has several levels made in a single or in several closed loops, for example with rectilinear and possibly curved sections, superimposed on each other.
- the means for varying the total length of the adjustment rail are arranged so as to adjust the spacing -axis between the cusps semicircles.
- Each semicircular section is thus independently adjustable, which makes it possible to offset the adjustment of the destination positions of the objects on one side on a straight section, relative to the straight section on the other side transversely to the conveyor where the chain is kept in a fixed position.
- the drive chain is tangentially motorized directly via the links, using at least one electric motor arrangement, with uniformly varied movement and without jerks.
- the motorization means comprise at least one drive roller bearing on one of the side faces of the chain, and a counter-roller with free or idle rotation, of controlled tightening of the links, disposed on the other side of the chain facing the drive roller.
- this chain is rotated 90 ° around its longitudinal axis (relative to the embodiments on edge) with a tangential motorization on its lower and upper faces.
- the detection means allow precise and drift-free chain stops.
- At least one, and for example each link has at least one orifice capable of cooperating with the detection means, for example photoelectric, for controlling the stop and start sequences of the chain.
- the orifice of the link cooperates with at least one photoelectric device disposed opposite a corresponding orifice provided in the guide rail.
- a first detection causes or triggers a deceleration of the chain initially at nominal speed, and after deceleration caused by the first detection, in motorization at low speed, a second detection triggers a chain stop.
- a second object of the invention is a machine for logistical installation, for example a postal sorting center.
- This machine comprises at least one chain conveyor as described above.
- the machine comprises at least one or more unloading stations provided with a transfer device comprising a pendulum lever controlled by a connecting rod driven in rotation by a motor assembly, the kinematic connection between the connecting rod and the lever being a sliding connection.
- a transfer device comprising a pendulum lever controlled by a connecting rod driven in rotation by a motor assembly, the kinematic connection between the connecting rod and the lever being a sliding connection.
- Figure 1 is a schematic overall plan view from above, of a partially illustrated machine, and of a conveyor, according to the invention.
- Figure 2 is a cross-sectional elevation view on a large scale of a conveyor mounted on this machine.
- Figure 3 is a simplified view in longitudinal elevation section along the line l l l-l l l of the fig I I.
- Figure 4 is an elevational view in longitudinal section, of a fixed length link of a conveyor chain according to the invention, with its guide rail cutaway.
- Figure 5 is a top view of this link.
- Figures 6 and 7 are sectional elevation views along lines VI-VI and VI I-VI I of Figure 4.
- Figures 8 and 9 are views similar to Figures 4 and 5 respectively, of a variable length link of the tensioner type for this chain.
- Figure 10 is a diagram, in top view of the motorization assembly of the conveyor.
- Figure 1 1 illustrates in transverse view, a sensor for controlling the conveyor.
- Figure 12 is an operating diagram of the conveyor.
- FIG. 13 is a schematic view in longitudinal elevation of a link which comprises sliding means for connecting two parts, for adjusting the length of the chain, and means for immobilizing it at an appropriate center distance, here clamping screw.
- FIG. 1 shows a machine 1 for a logistics installation according to the invention comprising a conveyor or carousel 2.
- the longitudinal term refers to a direction illustrated by that of the arrows opposite rectilinear sections of the conveyor 2. In these sections, the movement of the objects is carried out in the longitudinal direction, in a direction or the other.
- transverse or lateral refer to a direction in the plane of Figure 1, and perpendicular to the longitudinal direction.
- elevation designates a direction perpendicular to the other two.
- the conveyor 2 is of the closed loop chain type.
- It comprises a chain guided by .. a guide rail 3 and driving receiving members 4 capable of each receiving a three-dimensional object.
- each object is an empty handling container made of synthetic material with a low coefficient of friction.
- the containers or objects obviously have different shapes, materials or structures.
- bins are in the present case intended for the sorting machine 1, provided for placing in each of the bins, objects having a common sorting characteristic, for example their destination.
- the rail 3 is formed of four sections, including two useful rectilinear sections 5 parallel, and two cusp sections 6 and 7 in a semicircle, located at each end of the straight sections.
- Each section 6 and 7 has a general geometric axis or respective center 8 and 9 of cusp.
- Adjusting devices 10 are arranged at each end of each curved section 6, 7.
- Each adjustment device 1 0 makes it possible to adjust the distance separating the end of the curved section 6, 7 on which it is arranged and the end of the straight section 5 which corresponds to it.
- the adjustment devices 10 therefore make it possible in particular to vary the total length of the rail 3.
- These devices 10 therefore act on the longitudinal and / or transverse position of the curved section 6, 7 separately or simultaneously, which allows, when the chain is stopped, therefore immobilized by the brake motorization, to shift the portion of chain located in a straight section 5, with respect to the chain portion located opposite in the other straight section.
- the configuration of the rail in the straight sections 5 is different from that in the curved sections 6, 7.
- the rail provides both horizontal and vertical guidance of the chain links.
- the rail ensures only the vertical guidance of the links of the chain, while a planar track 77 fixed substantially horizontal disposed under each curved section 6, 7 ensures their horizontal guidance.
- This method of guiding the chain is permitted because the means for carrying the links in the chain are distinct from their guiding means.
- Each flat track 77 is arranged in direct continuity, with no offset, in particular in elevation or discontinuity, particularly longitudinal, with the bearing surfaces of the straight sections of the rail 3, so that the passage of a roller carrying its straight carrying surface towards runway 77 (or vice versa) is done without jump or shock.
- a track 77 admits (as illustrated in FIG. 6) that the trajectory of the carrying rollers varies from the inside towards the outside of the track according to the adjustment applied to at least one of the curved sections 6 , 7, which here provide vertical guidance of the chain.
- connection between each track and the carrying surfaces in the straight sections 5, for example the horizontal lower wings of the rail 3, is obtained end-to-end, and therefore without significant jump or discontinuity.
- motorization means 1 1 described in more detail below, make it possible to drive the chain of the conveyor 2.
- the machine 1 also includes a fixed installation 12 for intermediate reception of the containers, visible in FIG. 2 for example.
- the bins are conveyed on a conveyor 14 for evacuation.
- the conveyor 2 and the conveyor 14 move in the opposite direction as shown by the arrows B and C in FIG. 1.
- the fittings 12 are also arranged in two straight sections adjacent and parallel to the straight sections 5 of the conveyor 2, outside this conveyor.
- a conveyor 1 3 intended to move buckets by circulating here above the tanks, in ensuring their filling when they are stopped, by releasing at least part of the initial contents of the buckets on the fly, towards the tanks, under the effect of gravity.
- each initially empty container is more or less completely filled with objects sorted according to the aforementioned common characteristic.
- This conveyor 13 is part of the machine 1.
- the machine 1 comprises, facing the straight sections 5 outside the conveyor, conveyors or evacuation lines 14.
- the fixed poses 12 are sheet metal frames.
- the conveyor 14 is moved along an arrow C in the longitudinal direction, in a direction opposite to that of the conveyor 2, but other embodiments provide that the conveyor and the conveyor 2 go in the same direction.
- outlets are, according to the arrangements, arranged in parallel, at an angle less than 45 ° relative to the longitudinal direction, or even perpendicular to the straight sections 5 of the conveyor 2.
- line 14 moves its full bins to a location where they are, for example, made available for evacuation from the machine 1.
- the conveyor 2 advances step by step and stops so that one or more, or even all the empty trays moved by the conveyor 2 are opposite a full tray placed on the laying 12 and facing the discharge line 14.
- the conveyors 14 are inclined laterally in the direction of reception of the containers, and are at a standstill during a transfer from at least one setting 12.
- This transfer is ordered when the container said full on the laying 12 has reached a desired filling (maximum in terms of mass or volume, or sufficient in terms of logistics, for example to bring a new empty container required), and a system here. pendulum pushes a new empty tray from the conveyor 2, so that it pushes the full tray itself towards line 14 and takes its place on the laying.
- the full bin was evacuated and replaced by an empty bin, and this in a very short time, for example of the order of two seconds, without stopping operation of the machine 1 except during this evacuation time and on this single filling station.
- Figures 2 and 3 show in more detail a section A ( Figure 1) of the assembly which has just been described.
- embodiments of the invention have one or more than two levels, depending on the machines 1 to make cooperate with a central rotating stock offered by a conveyor 2 in particular.
- the number of positions is different from that shown in FIG. 1 or 2, higher or lower depending on the arrangements required, the example in question only illustrating the breadth of arrangement possibilities to which the invention can reply.
- FIG. 2 shows in particular the guide rail 3 of the conveyor and of the fixings 18 of the fittings 12.
- These transfer devices 19 from the empty tanks 15 from the conveyor 2 to the stands 12 comprise a pendulum thrust lever 20 driven by a motorization assembly 21 by means of a connecting rod 22.
- the connecting rod 22 has one of its ends rotated by the assembly 21, always in the same direction, and its other end is slidably mounted in a groove of the lever 20, which is itself mounted oscillating around an axis 23 .
- the motorization assemblies 21 are controlled so that, when a full container 16 must be evacuated on a line 14, the arm 20 which is in correspondence with this container is set in motion and pushes the empty container 15 which is between it and the full container to unload.
- the empty container then pushes the full container on line 14 and takes the place of this full container on the fitting 12.
- the nominal dimension of such a link 24 in the longitudinal direction of the chain is substantially equal to a step of loading / unloading a container.
- stop positions are said to be “indexed”, and are constrained to a tolerance of +/- 5 mm maximum, not cumulative over the length of the chain.
- This tolerance also includes that due to the manufacture of the frame 17 which is of the order of +/- 2mm, and that due to expansion / retraction under variation of ambient temperature here comprised between + 5 ° C and + 32 ° C.
- the elongation to compensate for a link 24 full of aluminum is of the order of +0 to +0.1 12 mm with a link of substantially 340 mm.
- endless loop carousel chain has an integer number of links and therefore bins on the total developed of this chain. This by incorporating the curved sections 6 and 7 of course.
- junctions ensuring a tolerance of the order of +0.005 to +0.029mm, estimated as an H7 / g6 mounting according to the usual designations.
- the estimated elongation of a link, due to possible wear of the joints is here of +0 to + 0.05mm.
- the chain is here formed of sections of ten links, including nine common links such as 24, these sections being connected together by tensioning links, of variable length, which will be described later.
- tensioning links are replaced by adjustable links such as that which is visible in FIG. 13, or the like.
- adjustable links are also in embodiments, incorporated in a chain provided with tensioning links.
- link 24 of Figure 4 we see that it comprises a body 25 made of a metal bar of rectangular section.
- the body 25 is made in a solid or aluminum bar, but other materials such as synthetic, are used in embodiments.
- a carrying roller 26 with a horizontal axis and two guide rollers 27 with a vertical axis.
- One end of the body 25 forms a horizontal male yoke 28.
- the carrying roller 26 is mounted on a female yoke or fork 30 by means of an axis 31.
- the roller 26 is mounted on a plain bearing, but bearings are provided in embodiments.
- the fork 30 is itself pivotally mounted in a recess of the body 25 around a vertical axis, by means of an axis 32.
- a pin 33 makes the fork 30 and the axle 32 integral in rotation, the latter being mounted in a bore in the body 25 on a bearing 34 forming a bearing.
- An elastic stapling or "clip" 35 ensures the longitudinal retention of the axis 32 in the body 25.
- the guide rollers 27 are mounted on the body 25 by means of the same axis or shaft 36, which receives them on bearings 37.
- Other embodiments provide instead of bearings 37, bearings and other rotating structures for guiding in rotation.
- the axis 36 crosses the branches of the fork 29 of a link and the yoke 28 of the adjacent link, so that it also provides a rotary connection between these two links.
- a ball joint 38 is interposed between the shaft 36 and the yoke 28.
- the ball joint allows here an angular movement in a horizontal plane of several tens of degrees, to allow the chain to negotiate the curves of the conveyor 2. These curves are, as mentioned above planes here, but on a slope in other achievements.
- This chain is therefore also suitable for inclined level change ramps.
- link 24, and more precisely its body 25 has an oblong orifice 40 with a horizontal axis, the servo function of which will be described later.
- the guide rail 3 has in the straight sections 5 a C-shaped cross section, visible in Figure 7 in particular.
- the C-shaped elevation cross section has a vertical bottom 41 and two horizontal wings 42 whose edges 43 are themselves folded vertically.
- the rail 3 comprises, instead of a series of pieces of one-piece end-to-end section as here, four angles.
- the guide rail has a C-shaped cross section whose concavity is turned towards the respective center 8, 9 of the curved section 6, 7 in the shape of a semicircle.
- a fitting 45 with a substantially S-shaped cross section is fixed to the body 25 by two bolts 46 and leaves the guide rail 3 through its lateral opening, between the wings 42.
- the plate 44 is fixed to the fitting 45 using screws 47.
- This fitting 45 makes it possible to obtain any desired position boarding of a ferry on the chain, inclined differently or as in the figures, or horizontal.
- the plate 44 is inclined downward relative to the horizontal, in the direction of movement, that is to say it is inclined up and down, and from upstream to downstream.
- Its front edge 48 is folded substantially at 90 ° to retain the tray placed on the tray. Its lateral edge 49 located on the side of the rail 3, opposite the fitting 12, is folded in the same way, to position a tray.
- An auxiliary carrying roller 50 is mounted under the plate 44 to roll on a track 51 secured to the chassis 17.
- the objects are directly carried by the links, the receiving means of which are then integrated into the body 25.
- embodiments provide, in particular with horizontal articulation axes, for the reception of a container directly arranged above the links.
- this link 52 is here identical to a current link 24.
- It comprises in particular the same carrying and guiding rollers, and is also provided with a receiving tray.
- the tensioning force of such means is greater than the maximum drive force of the chain, and for example in a ratio of the order of 1, 3.
- the mechanical metal spring here is replaced by tensioning means made of elastically deformable synthetic material, such as polyurethane or the like.
- Gas springs or the like are provided in yet other embodiments.
- the front part 53 only comprises the clevis connecting to the preceding link and the means for fixing the spring 55 before.
- the rear part 54 supports the other members in the same way as the body 25 of a link 24 and, furthermore comprises the means for rear fixing of the spring 55.
- the front part 53 sliding with respect to the rear part 54 forms, on its rear side, a female fork or fork 56 between the branches of which is mounted a horizontal pin 57.
- a curved end of the spring 55 engaged on this pin 57 ensures its attachment to the front part 53.
- the central part of the spring is arranged in a housing 58 of the front part 54 of the body.
- this link 72 comprises a front part 53 and a rear part 54, connected by a junction area here comprising a lower plane of the part 54 and an upper plane of the part 53, one against the other.
- front 53 and rear 54 parts are smooth, fitted, or connected by slides.
- the planes are within the link 72, substantially mid-section in elevation.
- Front and rear spacings are provided between the parts 53 and 54, one upper front and the other lower rear, to allow a plurality of relative longitudinal positions of these parts against each other.
- Each position gives the link 72 a chosen length.
- the actual adjustment is here carried out with precision, once the screws 73 have been loosened, using a longitudinal rod 76 with inverted threads.
- This rod 76 is on the one hand engaged with a longitudinal tapping downstream from the part 54, and on the other hand with a longitudinal tapping upstream from the part 53.
- At least two adjacent sections of the chain are connected by a link with an adjustable center distance 72, the interposition of an adjustment arrangement comprising the rod 76, allows play to be taken up in the chain.
- a smooth drive roller 61 driven as illustrated by arrow M under the effect of a motor 63, is supported on one of the lateral flanks 64, here inside, of the chain. I t is therefore a tangential and continuous friction drive, without obstacle.
- This drive of the roller 61 is here directly transmitted through a reduction gear 62 by a motor r 63.
- the motor assembly 62, 63 is offset and connected to the roller 61 by a chain or a toothed belt.
- the drive movements of the motor 63 are controlled by a control block, from position information received on a line 65.
- a counter-roller 66 which is free in rotation, that is to say idle, is supported on a flank here outside of the chain.
- This counter-roller 66 is pressed on the chain by pressing biasing means 67, which are here adjustable in position and pressure intensity.
- the motor also makes it possible to immobilize the chain in a fixed position by keeping it pinched between the roller 61 and the counter roller 66.
- Figure 1 1 means for determining the position of any link 24, 52 or 72 of the chain relative to a reference location.
- a bracket 68 supports on one side of the chain a light emitting diode 69 and on the other side of the chain, facing the diode 69, a photosensitive component 70 of conveyor 2.
- An orifice 71 is formed in the bottom 41 of the rail 3 between the diode 69 and the component 70.
- the body 25 of the links has an oblong orifice 40.
- This orifice is arranged at an identical elevation on all the links 24, 52 or 72, so as to be on the path of the light ray coming from the diode 69 during the passage of the link in the stirrup 68.
- This figure is a curve representing the speed V of movement of the chain as a function of time, and therefore of displacement.
- the motor 63 is controlled so as to obtain accelerations and decelerations of the chain as a function of time, and consequently of the speed ramps.
- the engine starts at time 0 and accelerates to a speed V M reached at time ti.
- the motor 63 is controlled at constant speed until instant t 2 when the first position signal arrives on the line 65.
- the motor 63 is then decelerated until time t 3 when it reaches the speed V m and where it is again controlled at low speed. The chain undergoes the same slowdown.
- the motor 63 already operates at reduced speed when it is stopped, which provides the desired precision.
- the slowing down, and a fortiori the immobilization of the chain are controlled subject to a prior stop request, given by the cell initiating the stop cycle.
- a prior stop request given by the cell initiating the stop cycle.
- the race continues at VM speed, until the next stop request.
- the detection means described here are electroluminescent, but in other embodiments, they are of other types such as electromagnetic or the like.
- three cells of the detection means are spaced longitudinally along the path of the chain.
- the first cell the furthest from the desired stop position, establishes the request to stop the passage of a hole 40 of a link whose object is intended for this position.
- a second cell causes the slowdown.
- the successive cells of the detection means ensure immobilization of the chain, and therefore of the object facing its destination station, without parasitic inertia.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP99964737A EP1140675A1 (fr) | 1998-12-30 | 1999-12-29 | Convoyeur a chaines, tel que carrousel pour machine d'installation logistique, et machine telle que pour le tri d'objets plats |
AU30491/00A AU3049100A (en) | 1998-12-30 | 1999-12-29 | Chain conveyor such as circular conveyor for logistics installation, and machinefor sorting flat objects |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR98/16683 | 1998-12-30 | ||
FR9816683A FR2788043B1 (fr) | 1998-12-30 | 1998-12-30 | Convoyeur a chaine, tel que carrousel pour machine d'installation logistique, et machine telle que pour le tri d'objets plats |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000040489A1 true WO2000040489A1 (fr) | 2000-07-13 |
Family
ID=9534719
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR1999/003313 WO2000040489A1 (fr) | 1998-12-30 | 1999-12-29 | Convoyeur a chaines, tel que carrousel pour machine d'installation logistique, et machine telle que pour le tri d'objets plats |
Country Status (5)
Country | Link |
---|---|
US (1) | US6315101B1 (fr) |
EP (1) | EP1140675A1 (fr) |
AU (1) | AU3049100A (fr) |
FR (1) | FR2788043B1 (fr) |
WO (1) | WO2000040489A1 (fr) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6855907B2 (en) * | 2000-12-29 | 2005-02-15 | National Steel Car Limited | Metal cutting process |
JP3849865B2 (ja) * | 2002-06-27 | 2006-11-22 | 株式会社椿本チエイン | 郵便物仕分配送用移載装置 |
US7464822B2 (en) * | 2005-01-05 | 2008-12-16 | Lockheed Martin Corporation | Transporting and packaging device and method of use |
US7621392B2 (en) | 2007-05-29 | 2009-11-24 | Siemens Industry, Inc. | Conveyor carousel with distributed drive system |
ITBO20080225A1 (it) * | 2008-04-14 | 2009-10-15 | Marchesini Group Spa | Metodo per il trasferimento di articoli da una prima macchina ad una seconda macchina che confeziona tali articoli in relativi contenitori |
DE102008059622A1 (de) * | 2008-11-28 | 2010-06-02 | Krones Ag | Einrichtung zum Verpacken von Artikeln |
US8312988B2 (en) | 2010-12-08 | 2012-11-20 | Diversified Conveyors, Inc. | Sloped carousel baggage conveyor |
CN103662616B (zh) * | 2013-12-24 | 2016-05-11 | 南昌大学 | 一种柔性环形传输装置 |
CN103771129B (zh) * | 2014-01-10 | 2016-08-17 | 广州华工环源绿色包装技术有限公司 | 拨料装置 |
US9469481B2 (en) | 2014-09-10 | 2016-10-18 | Dorner Mfg. Corp. | Carousel conveyor drive module |
IL238444B (en) * | 2015-04-22 | 2018-08-30 | Israel Aerospace Ind Ltd | Baggage handling system |
CN110155683A (zh) * | 2018-07-24 | 2019-08-23 | 中集德立物流系统(苏州)有限公司 | 物品自动理货系统 |
CN112644742B (zh) * | 2021-01-12 | 2022-12-23 | 南京天创新材料科技有限公司 | 一种变性淀粉自动分装机构 |
CN113998393B (zh) * | 2021-11-23 | 2023-04-25 | 安徽百特机电工程有限公司 | 一种提升机底部密封式张紧装置 |
CN117415389B (zh) * | 2023-12-19 | 2024-04-09 | 成都先进功率半导体股份有限公司 | 一种引线框架分切装置及使用方法 |
Citations (7)
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US2277593A (en) * | 1939-03-24 | 1942-03-24 | Fritz Mommendey & Sohn | Resilient chain, such as pull chain |
FR998359A (fr) * | 1948-10-30 | 1952-01-17 | Chaîne élastique pour la transmission de forces, utilisable à des fins diverses et notamment sur des bicyclettes munies d'un mécanisme de changement de vitesse | |
DE919998C (de) * | 1951-06-21 | 1954-11-11 | Emil Neutsch | Endloser, aus in Fuehrungen hintereinander bewegten Tragelementen bestehender Foerderer |
US4072228A (en) * | 1975-05-20 | 1978-02-07 | Ferag Ag | Apparatus for evening an imbricated stream of printed products |
EP0108202A1 (fr) * | 1982-08-17 | 1984-05-16 | Axel De Broqueville | Système de transport utilisant un train de véhicules extensible et des convoyeurs à bande extensibles |
EP0391575A1 (fr) * | 1989-04-07 | 1990-10-10 | Sagawa Distribution Service Co. Ltd. | Convoyeur de triage automatique à vitesse haute et basse |
US5503264A (en) * | 1993-07-07 | 1996-04-02 | Ferag Ag | Endlessly circulating items transporting apparatus with individual transporting members |
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US2934197A (en) * | 1956-05-18 | 1960-04-26 | Valida Maskiner Ab | Conveying equipment |
AU545328B2 (en) * | 1981-04-10 | 1985-07-11 | K.K. Ishida Koki Seisakusho | Combination weigher |
US4731567A (en) * | 1984-09-11 | 1988-03-15 | The United States Of America As Represented By The Secretary Of The Air Force | Method and apparatus for automated parts for storage and retrieval |
IT1279951B1 (it) * | 1995-06-15 | 1997-12-23 | Oam Spa | Unita' di trasferimento di prodotti |
FR2772734B1 (fr) * | 1997-12-22 | 2000-03-10 | Gallet Systemes Automatises | Dispositif de transfert et convoyeur equipe d'un tel dispositif |
-
1998
- 1998-12-30 FR FR9816683A patent/FR2788043B1/fr not_active Expired - Fee Related
-
1999
- 1999-12-29 WO PCT/FR1999/003313 patent/WO2000040489A1/fr not_active Application Discontinuation
- 1999-12-29 AU AU30491/00A patent/AU3049100A/en not_active Abandoned
- 1999-12-29 EP EP99964737A patent/EP1140675A1/fr not_active Withdrawn
- 1999-12-29 US US09/474,979 patent/US6315101B1/en not_active Expired - Fee Related
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2277593A (en) * | 1939-03-24 | 1942-03-24 | Fritz Mommendey & Sohn | Resilient chain, such as pull chain |
FR998359A (fr) * | 1948-10-30 | 1952-01-17 | Chaîne élastique pour la transmission de forces, utilisable à des fins diverses et notamment sur des bicyclettes munies d'un mécanisme de changement de vitesse | |
DE919998C (de) * | 1951-06-21 | 1954-11-11 | Emil Neutsch | Endloser, aus in Fuehrungen hintereinander bewegten Tragelementen bestehender Foerderer |
US4072228A (en) * | 1975-05-20 | 1978-02-07 | Ferag Ag | Apparatus for evening an imbricated stream of printed products |
EP0108202A1 (fr) * | 1982-08-17 | 1984-05-16 | Axel De Broqueville | Système de transport utilisant un train de véhicules extensible et des convoyeurs à bande extensibles |
EP0391575A1 (fr) * | 1989-04-07 | 1990-10-10 | Sagawa Distribution Service Co. Ltd. | Convoyeur de triage automatique à vitesse haute et basse |
US5503264A (en) * | 1993-07-07 | 1996-04-02 | Ferag Ag | Endlessly circulating items transporting apparatus with individual transporting members |
Also Published As
Publication number | Publication date |
---|---|
EP1140675A1 (fr) | 2001-10-10 |
FR2788043A1 (fr) | 2000-07-07 |
AU3049100A (en) | 2000-07-24 |
US6315101B1 (en) | 2001-11-13 |
FR2788043B1 (fr) | 2001-02-16 |
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