EP2447918A1 - Device for transporting mail articles with angular delay - Google Patents

Device for transporting mail articles with angular delay Download PDF

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Publication number
EP2447918A1
EP2447918A1 EP10306175A EP10306175A EP2447918A1 EP 2447918 A1 EP2447918 A1 EP 2447918A1 EP 10306175 A EP10306175 A EP 10306175A EP 10306175 A EP10306175 A EP 10306175A EP 2447918 A1 EP2447918 A1 EP 2447918A1
Authority
EP
European Patent Office
Prior art keywords
drive
transport device
rollers
drive rollers
roller
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.)
Granted
Application number
EP10306175A
Other languages
German (de)
French (fr)
Other versions
EP2447918B1 (en
Inventor
Yannick Claris
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Quadient Technologies France SA
Original Assignee
Neopost Technologies SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Neopost Technologies SA filed Critical Neopost Technologies SA
Priority to EP10306175.0A priority Critical patent/EP2447918B1/en
Priority to US13/281,853 priority patent/US8807321B2/en
Publication of EP2447918A1 publication Critical patent/EP2447918A1/en
Application granted granted Critical
Publication of EP2447918B1 publication Critical patent/EP2447918B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07B—TICKET-ISSUING APPARATUS; FARE-REGISTERING APPARATUS; FRANKING APPARATUS
    • G07B17/00—Franking apparatus
    • G07B17/00459—Details relating to mailpieces in a franking system
    • G07B17/00467—Transporting mailpieces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H9/00—Registering, e.g. orientating, articles; Devices therefor
    • B65H9/16—Inclined tape, roller, or like article-forwarding side registers
    • B65H9/166—Roller
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2403/00—Power transmission; Driving means
    • B65H2403/70—Clutches; Couplings
    • B65H2403/73—Couplings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/13—Details of longitudinal profile
    • B65H2404/132—Details of longitudinal profile arrangement of segments along axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/19—Specific article or web
    • B65H2701/1916—Envelopes and articles of mail
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07B—TICKET-ISSUING APPARATUS; FARE-REGISTERING APPARATUS; FRANKING APPARATUS
    • G07B17/00—Franking apparatus
    • G07B17/00459—Details relating to mailpieces in a franking system
    • G07B17/00508—Printing or attaching on mailpieces
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07B—TICKET-ISSUING APPARATUS; FARE-REGISTERING APPARATUS; FRANKING APPARATUS
    • G07B17/00—Franking apparatus
    • G07B17/00459—Details relating to mailpieces in a franking system
    • G07B17/00508—Printing or attaching on mailpieces
    • G07B2017/00516—Details of printing apparatus
    • G07B2017/00556—Ensuring quality of print
    • G07B2017/00564—Ensuring correct position of print on mailpiece

Definitions

  • the present invention relates to the field of mail processing and more particularly relates to an improved drive member intended to equip a device for transporting mail items of a mail item supply module of a mail machine. mail processing.
  • the postal specifications that govern the printing of postal impressions are very precise and define in particular its position relative to the upper edge of the envelope. However, this position is related to the jogging of the envelope.
  • the envelope being conveyed parallel to a referencing wall (also called jogging wall), a jogging error in the feed magazine (or feeder) causes the same fault downstream in the selection device and then further before when passing under the print module of the postage stamp.
  • the control and the automatic correction of this jogging error from the feeder are therefore very important so as to avoid systematic manual re-marking by the operator when inserting a stack of envelopes in this feeder.
  • the Applicant has already proposed to add to the conveyor rollers arranged parallel to the referencing wall of the perpendicular roll-up rollers and operating in advance of phase compared to these.
  • a braking tendency of the envelopes still persists because of the action of these rolls of retaping and is even more important than the height and / or the mass of the stack of envelopes is high.
  • the present invention therefore aims to overcome the aforementioned drawbacks with a device for transporting a device for supplying mail items comprising specific drive members for controlling and correcting the jogging of these mail items.
  • An object of the invention is also to propose a device that is particularly tolerant of the poor positions of the stacks of envelopes disposed on the feeder.
  • a mail processing machine feeder transporting device having at least one row of drive rollers having at least first and second drive rollers traversing a receiving tray of said feeder and driven by kinematics.
  • said first and second drive rollers being inclined at an angle ⁇ perpendicular to a longitudinal reference wall, characterized in that said second drive roller is rotated with a first predetermined delay with respect to said first drive roller, the closest to said reference wall.
  • the envelopes are not brutally brought into abutment against the referencing wall but they pivot on themselves without coming to a stop in order to find the direction of transport.
  • said first driving roller is constituted by a cylindrical wheel mounted on a rim whose hub comprises a thrust stop capable of transmitting, after said first predetermined delay, a driving torque to a driving abutment to said second roller. drive.
  • Said thrust stopper of said first drive roller and said drive stop of said second drive roller are axially interwoven and have a predetermined first angular gap between them at rest.
  • said at least one row further comprises a third drive roller and said third drive roller is rotated with a second predetermined delay with respect to said second drive roller.
  • said second drive roller is constituted by a cylindrical wheel mounted on a rim whose hub comprises on a face opposite to said drive abutment a thrust stop capable of transmitting, after said second predetermined delay, a driving torque. to a driving abutment of said third drive roller.
  • Said thrust stopper of said second drive roller and said driving abutment of said third drive roller are axially interwoven and have at their rest a second predetermined angular gap.
  • said first, second and third drive rollers are equidistantly disposed so that said first and second angular gaps are identical.
  • the transport device according to the invention comprises three parallel rows each comprising three drive rollers.
  • said push stops and drive stops each comprise a groove or an orifice for receiving and fixing the ends of a return spring intended to return the drive rollers to their original position.
  • a game j between said return spring and a common axis of rotation of said drive rollers so as not to clamp said common axis of rotation during compression of the spring.
  • said clearance is obtained by reducing the diameter of said common axis of rotation interconnecting two successive drive rollers.
  • the present invention also relates to any mail processing machine feeder incorporating the aforementioned transport device.
  • FIG. figure 1 A feeding device (or feeder) for mailpieces for a mail processing machine incorporating a transport device according to the invention is illustrated in FIG. figure 1 .
  • This feeder 10 conventionally comprises a receiving tray 12 on which are placed in a compact stack, homogeneous or not (depending on whether these items are of the same size or not), the mail items to print.
  • These mail items are conveyed to a selection device 14 by a transport device conventionally formed of a plurality of drive members such as the conveyor rollers 16 traversing the receiving tray of the mail items and controlled by a kinematic appropriate 18.
  • these rollers 16 of the transport device are arranged in line in at least one row (in this case three parallel rows) inclined at an angle of inclination a (typically between 10 ° and 40 °) perpendicularly to a reference wall 20 of the feeder and, as is more particularly illustrated by the figures 2 and 3 each of these rollers is constituted by a cylindrical wheel 22 mounted on a rim 24 whose central hub 26 which encloses the common axis of rotation 28 carries according to the function of this wheel is a thrust stopper 30 (first and third rollers) or a driving abutment 32 (first and third rollers) is still the two (second roll) on two opposite sides.
  • a thrust stopper 30 first and third rollers
  • driving abutment 32 first and third rollers
  • each of the rows of rollers comprises at least two rollers (in this case three), the closest to the referencing wall is provided with the thrust stopper 30, the immediately following roll then comprising the training stopper. 32, these two abutments being interleaved axially in the manner of a clutch but having, however, between them at rest a predetermined angular difference (preferably less than 100 °) so that the rotation of the first roller does not cause that of the second with a time delay depending on this deviation and the rotational speed of the common axis 28, when the thrust stop of the first roller comes into contact with the driving abutment of the second roller.
  • a predetermined angular difference preferably less than 100 °
  • the second roll comprises on the opposite face of its hub 26 including the driving abutment 32 also a thrust stopper 30 able to cooperate in a similar manner with a driving abutment 32 of the third roller, the predetermined angular gap existing at rest between these two stops being identical to the previous one.
  • this configuration can be repeated with subsequent rolls if the row comprises more than three rolls,
  • the thrust stop 30 which forms a part offset in front of the hub 26 of the first roller extends over a first angular sector of about 80 ° between its surface 30A of transmission of the driving torque and its resting surface 30B and comprises a groove 30C or at least one orifice for receiving and fixing the first end of a return spring 34 intended to return the roll to its original position once a batch of mail items processed.
  • the driving abutment 32 which also forms a part offset in front of the hub 26, this time of the second roller, extends for its part on a second angular sector of about 180 ° between its driven surface 32A and its rest surface 32B and also comprises a groove 32C or at least one orifice for receiving and fixing the other end of the return spring 34.
  • the clearance j existing between the return spring and the common axis of rotation 28 so as not to tighten this axis during the compression of the spring, this clearance can be obtained for example by reducing the diameter of this axis between two rollers.
  • the angular values of the first and second sectors are given as an indication (they are also different from one roll to the other when the angular difference is different), the essential thing being to respect a predetermined angular difference between the two stops, more precisely between the transmission surface 30A of the thrust stop and the driven surface 32A of the drive abutment.
  • the wheels are made of a material which is chosen with respect to the technical specifications (abrasion, friction, elasticity, hardness) expected from the drive, that is to say with a coefficient of friction large enough to allow driving of the articles. mail to the selection device.
  • a material is, for example, silicone, natural rubber, polyurethane or ethylenepropylenedienemonomer.
  • the rim and its hub can be made of a low-cost material, for example a material based on polyoxymethylene.
  • the operation of the transport device is as follows. A first batch of envelopes being stacked on the receiving tray without worrying about its alignment against the reference wall 20, the start of the feeder will cause the rotation of the common axis 28 and therefore that of the first rollers of each row of the transport device, the other rollers are not yet trained. This differential rotation will cause an advance of the envelope underneath and a pivoting of the batch of envelopes which will therefore start to move in the direction of transport.
  • the second rollers After a few milliseconds due to the angular delay, the second rollers will come into action and continue in their turn the training of the bottom envelope while continuing the pivoting of the stack (which is now easier because of this simultaneous action of first and second rolls of each row) so that it returns to the direction of transport parallel to the referencing wall and will then allow a few milliseconds later than the third rollers come into action. From this moment, all the rollers are driven in synchronism until the battery is exhausted and the last envelope of the batch is injected into the selection device. Once, the last envelope injected, under the effect of the return springs 34 pusher stops 30 will separate the drive stops 32 on which they are in contact to resume their original positions to process a next batch.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)

Abstract

The feeder has a mail piece-receiving deck, a longitudinal referencing wall, and a row of drive rollers comprising two drive rollers traversing the deck, where one of the drive rollers is formed by a cylindrical wheel (22) mounted on wheel rim (24). A drive mechanism controls the row of drive rollers. The rollers are inclined at an angle relative to perpendicular to a longitudinal referencing wall. The row of drive rollers has a driving unit for driving one of the drive rollers in rotation with a predetermined delay relative to another drive roller that is close to the wall.

Description

Domaine de la techniqueField of the art

La présente invention se rapporte au domaine du traitement de courrier et elle concerne plus particulièrement un organe d'entraînement perfectionné destiné à équiper un dispositif de transport d'articles de courrier d'un module d'alimentation en articles de courrier d'une machine de traitement de courrier.The present invention relates to the field of mail processing and more particularly relates to an improved drive member intended to equip a device for transporting mail items of a mail item supply module of a mail machine. mail processing.

Art antérieurPrior art

Les spécifications postales qui régissent l'impression des empreintes postales sont très précises et définissent notamment sa position par rapport au bord supérieur de l'enveloppe. Or, cette position est liée au taquage de l'enveloppe. L'enveloppe étant convoyée parallèlement à une paroi de mise en référence (dite aussi paroi de taquage), un défaut de taquage dans le magasin d'alimentation (ou alimenteur) entraîne le même défaut en aval dans le dispositif de sélection puis plus avant encore lors du passage sous le module d'impression de l'empreinte postale. Le contrôle et la correction automatique de ce défaut de taquage dès l'alimenteur sont donc très importants de façon à éviter un retaquage manuel systématique par l'opérateur lors de l'insertion d'une pile d'enveloppes dans cet alimenteur.The postal specifications that govern the printing of postal impressions are very precise and define in particular its position relative to the upper edge of the envelope. However, this position is related to the jogging of the envelope. The envelope being conveyed parallel to a referencing wall (also called jogging wall), a jogging error in the feed magazine (or feeder) causes the same fault downstream in the selection device and then further before when passing under the print module of the postage stamp. The control and the automatic correction of this jogging error from the feeder are therefore very important so as to avoid systematic manual re-marking by the operator when inserting a stack of envelopes in this feeder.

Aujourd'hui pour solutionner ce problème, il est connu d'incliner les rouleaux de convoyage de l'alimenteur pour, par un transport en diagonal, décaler les enveloppes vers la paroi de mise en référence tout en les convoyant en aval vers le dispositif de sélection. Toutefois, cette configuration en exerçant un effort de retaquage important sur l'enveloppe freine celle-ci et, dans le cas d'une enveloppe fine, peut même la détériorer. En outre, l'effort exercé dépend de la position de chaque rouleau de convoyage par rapport au dispositif de sélection.Today to solve this problem, it is known to incline the conveyor rollers of the feeder to, by diagonal transport, shift envelopes to the reference wall while conveying downstream to the device of selection. However, this configuration by exerting a major gearing effort on the envelope brakes it and, in the case of a thin envelope, can even deteriorate. In addition, the force exerted depends on the position of each conveying roller with respect to the selection device.

La demanderesse a déjà proposé d'adjoindre aux rouleaux de convoyage disposés parallèlement à la paroi de mise en référence des rouleaux de retaquage perpendiculaires et fonctionnant en avance de phase par rapport à ces derniers. Toutefois, ici encore et même si elle est réduite par rapport à la configuration précédente, une tendance au freinage des enveloppes persiste malgré tout du fait de l'action de ces rouleaux de retaquage et est d'autant plus importante que la hauteur et/ou la masse de la pile d'enveloppes est élevée.The Applicant has already proposed to add to the conveyor rollers arranged parallel to the referencing wall of the perpendicular roll-up rollers and operating in advance of phase compared to these. However, here again and even if it is reduced compared to the previous configuration, a braking tendency of the envelopes still persists because of the action of these rolls of retaping and is even more important than the height and / or the mass of the stack of envelopes is high.

Objet et définition de l'inventionObject and definition of the invention

La présente invention a donc pour objet de pallier les inconvénients précités avec un dispositif de transport d'un dispositif d'alimentation en articles de courrier comportant des organes d'entraînement spécifiques permettant un contrôle et une correction du taquage de ces articles de courrier. Un but de l'invention est aussi de proposer un dispositif particulièrement tolérant aux mauvaises positions des piles d'enveloppes disposées sur l'alimenteur.The present invention therefore aims to overcome the aforementioned drawbacks with a device for transporting a device for supplying mail items comprising specific drive members for controlling and correcting the jogging of these mail items. An object of the invention is also to propose a device that is particularly tolerant of the poor positions of the stacks of envelopes disposed on the feeder.

Ces buts sont atteints avec un dispositif de transport pour alimenteur de machine de traitement de courrier ayant au moins une rangée de rouleaux d'entraînement comportant au moins des premier et second rouleaux d'entrainement traversant un plateau de réception dudit alimenteur et commandés par une cinématique appropriée, lesdits premier et second rouleaux d'entrainement étant inclinés d'un angle a perpendiculairement à une paroi longitudinale de mise en référence, caractérisé en ce que ledit second rouleau d'entraînement est entrainé en rotation avec un premier retard prédéterminé par rapport au dit premier rouleau d'entrainement, le plus proche de ladite paroi de mise en référence.These objects are achieved with a mail processing machine feeder transporting device having at least one row of drive rollers having at least first and second drive rollers traversing a receiving tray of said feeder and driven by kinematics. said first and second drive rollers being inclined at an angle α perpendicular to a longitudinal reference wall, characterized in that said second drive roller is rotated with a first predetermined delay with respect to said first drive roller, the closest to said reference wall.

Ainsi, par cette structure particulière des rouleaux d'entraînement, les enveloppes ne sont pas amenées brutalement en butée contre la paroi de mise en référence mais elles pivotent sur elles mêmes sans venir en butée afin de retrouver la direction de transport.Thus, by this particular structure of the drive rollers, the envelopes are not brutally brought into abutment against the referencing wall but they pivot on themselves without coming to a stop in order to find the direction of transport.

Avantageusement, ledit premier rouleau d'entrainement est constitué par une roue cylindrique montée sur une jante dont le moyeu comporte une butée poussoir apte à transmettre, après ledit premier retard prédéterminé, un couple d'entrainement à une butée d'entrainement au dit second rouleau d'entraînement. Ladite butée poussoir dudit premier rouleau d'entraînement et ladite butée d'entrainement dudit second rouleau d'entrainement sont imbriquées axialement et ont entre elles au repos un premier écart angulaire prédéterminé. Ledit premier écart angulaire prédéterminé est donné par la formule suivante : R1°= (x α/ πd) 360° où x est la distance séparant lesdits premier et second rouleaux d'entrainement et d le diamètre desdits rouleaux d'entrainement.Advantageously, said first driving roller is constituted by a cylindrical wheel mounted on a rim whose hub comprises a thrust stop capable of transmitting, after said first predetermined delay, a driving torque to a driving abutment to said second roller. drive. Said thrust stopper of said first drive roller and said drive stop of said second drive roller are axially interwoven and have a predetermined first angular gap between them at rest. Said first predetermined angular difference is given by the following formula: R1 ° = (x α / πd) 360 ° where x is the distance separating said first and second drive rollers and d the diameter of said drive rollers.

De préférence, ladite au moins une rangée comporte en outre un troisième rouleau d'entraînement et ledit troisième rouleau d'entraînement est entraîné en rotation avec un second retard prédéterminé par rapport au dit second rouleau d'entrainement.Preferably, said at least one row further comprises a third drive roller and said third drive roller is rotated with a second predetermined delay with respect to said second drive roller.

Avantageusement, ledit second rouleau d'entrainement est constitué par une roue cylindrique montée sur une jante dont le moyeu comporte sur une face opposée à ladite butée d'entrainement une butée poussoir apte à transmettre, après ledit second retard prédéterminé, un couple d'entrainement à une butée d'entrainement dudit troisième rouleau d'entraînement. Ladite butée poussoir dudit second rouleau d'entrainement et ladite butée d'entrainement dudit troisième rouleau d'entrainement sont imbriquées axialement et ont entre elles au repos un second écart angulaire prédéterminé. Ledit second écart angulaire prédéterminé est donné par la formule suivante : R2°= (y α/ πd) 360° où y est la distance séparant lesdits second et troisième rouleaux d'entrainement et d le diamètre desdits rouleaux d'entrainement. De préférence, lesdits premier, second et troisième rouleaux d'entrainement sont disposés de façon équidistante de sorte que lesdits premier et second écarts angulaires sont identiques.Advantageously, said second drive roller is constituted by a cylindrical wheel mounted on a rim whose hub comprises on a face opposite to said drive abutment a thrust stop capable of transmitting, after said second predetermined delay, a driving torque. to a driving abutment of said third drive roller. Said thrust stopper of said second drive roller and said driving abutment of said third drive roller are axially interwoven and have at their rest a second predetermined angular gap. Said second predetermined angular difference is given by the following formula: R2 ° = (y α / πd) 360 ° where y is the distance separating said second and third drive rollers and d the diameter of said drive rollers. Preferably, said first, second and third drive rollers are equidistantly disposed so that said first and second angular gaps are identical.

Selon un mode de réalisation préférentiel, le dispositif de transport selon l'invention comporte trois rangées parallèles comportant chacune trois rouleaux d'entrainement.According to a preferred embodiment, the transport device according to the invention comprises three parallel rows each comprising three drive rollers.

Avantageusement, lesdites butées poussoirs et butées d'entrainement comportent chacune une rainure ou un orifice pour recevoir et fixer les extrémités d'un ressort de rappel destiné à ramener les rouleaux d'entraînement dans leur position d'origine. Il est prévu en outre un jeu j entre ledit ressort de rappel et un axe commun de rotation desdits rouleaux d'entraînement afin de ne pas serrer ledit axe commun de rotation lors de la compression du ressort.Advantageously, said push stops and drive stops each comprise a groove or an orifice for receiving and fixing the ends of a return spring intended to return the drive rollers to their original position. There is also a game j between said return spring and a common axis of rotation of said drive rollers so as not to clamp said common axis of rotation during compression of the spring.

De préférence, ledit jeu est obtenu en réduisant le diamètre dudit axe commun de rotation reliant entre eux deux rouleaux d'entraînement successifs.Preferably, said clearance is obtained by reducing the diameter of said common axis of rotation interconnecting two successive drive rollers.

La présente invention concerne également tout alimenteur de machine de traitement de courrier intégrant le dispositif de transport précité.The present invention also relates to any mail processing machine feeder incorporating the aforementioned transport device.

Brève description des dessinsBrief description of the drawings

L'invention sera mieux comprise au vu de la description détaillée qui va suivre accompagnée par des exemples illustratifs et non limitatifs en regard des figures suivantes sur lesquelles :

  • la figure 1 montre en perspective un dispositif d'alimentation pour machine de traitement de courrier intégrant un dispositif de transport selon l'invention,
  • la figure 2 est une vue en perspective de l'une rangée de rouleaux du dispositif de transport de la figure 1, et
  • la figure 3 est une vue en coupe au niveau de la liaison d'entrainement entre deux rouleaux successifs de la figure 2.
The invention will be better understood in view of the following detailed description accompanied by illustrative and nonlimiting examples with reference to the following figures in which:
  • the figure 1 shows in perspective a feeding device for a mail processing machine incorporating a transport device according to the invention,
  • the figure 2 is a perspective view of a row of rollers of the transport device of the figure 1 , and
  • the figure 3 is a sectional view at the drive link between two successive rollers of the figure 2 .

Description détaillée de modes de réalisationDetailed description of embodiments

Un dispositif d'alimentation (ou alimenteur) en articles de courrier pour machine de traitement de courrier intégrant un dispositif de transport selon l'invention est illustré à la figure 1. Cet alimenteur 10 comporte classiquement un plateau de réception 12 sur lequel sont placés en une pile compacte, homogène ou non (selon que ces articles sont de même dimension ou non), les articles de courrier à imprimer. Ces articles de courrier sont convoyés vers un dispositif de sélection 14 par un dispositif de transport formé classiquement d'une pluralité d'organes d'entraînement tels que les rouleaux de convoyage 16 traversant le plateau de réception des articles de courrier et commandés par une cinématique appropriée 18.A feeding device (or feeder) for mailpieces for a mail processing machine incorporating a transport device according to the invention is illustrated in FIG. figure 1 . This feeder 10 conventionally comprises a receiving tray 12 on which are placed in a compact stack, homogeneous or not (depending on whether these items are of the same size or not), the mail items to print. These mail items are conveyed to a selection device 14 by a transport device conventionally formed of a plurality of drive members such as the conveyor rollers 16 traversing the receiving tray of the mail items and controlled by a kinematic appropriate 18.

Selon l'invention, ces rouleaux 16 du dispositif de transport sont disposés en ligne selon au moins une rangée (en l'espèce trois rangées parallèles) inclinée d'un angle d'inclinaison a (typiquement compris entre 10° et 40°) perpendiculairement à une paroi de mise en référence 20 de l'alimenteur et, comme l'illustrent plus particulièrement les figures 2 et 3, chacun de ces rouleaux est constitué par une roue cylindrique 22 montée sur une jante 24 dont le moyeu central 26 qui enserre l'axe commun de rotation 28 porte selon la fonction de cette roue soit une butée poussoir 30 (premier et troisième rouleaux) soit une butée d'entrainement 32 (premier et troisième rouleaux) soit encore les deux (second rouleau) sur deux faces opposées.According to the invention, these rollers 16 of the transport device are arranged in line in at least one row (in this case three parallel rows) inclined at an angle of inclination a (typically between 10 ° and 40 °) perpendicularly to a reference wall 20 of the feeder and, as is more particularly illustrated by the figures 2 and 3 each of these rollers is constituted by a cylindrical wheel 22 mounted on a rim 24 whose central hub 26 which encloses the common axis of rotation 28 carries according to the function of this wheel is a thrust stopper 30 (first and third rollers) or a driving abutment 32 (first and third rollers) is still the two (second roll) on two opposite sides.

Plus précisément, chacune des rangées de rouleaux comporte au moins deux rouleaux (en l'espèce trois) dont le plus proche de la paroi de mise en référence est muni de la butée poussoir 30, le rouleau immédiatement suivant comportant alors la butée d'entrainement 32, ces deux butées étant imbriquées axialement à la manière d'un crabot mais en ayant toutefois entre elles au repos un écart angulaire prédéterminé (de préférence inférieur à 100°) de sorte que la rotation du premier rouleau n'entraîne celle du second qu'avec un retard temporel dépendant de cet écart et de la vitesse de rotation de l'axe commun 28, lorsque la butée poussoir du premier rouleau vient en contact avec la butée d'entrainement du second rouleau.More specifically, each of the rows of rollers comprises at least two rollers (in this case three), the closest to the referencing wall is provided with the thrust stopper 30, the immediately following roll then comprising the training stopper. 32, these two abutments being interleaved axially in the manner of a clutch but having, however, between them at rest a predetermined angular difference (preferably less than 100 °) so that the rotation of the first roller does not cause that of the second with a time delay depending on this deviation and the rotational speed of the common axis 28, when the thrust stop of the first roller comes into contact with the driving abutment of the second roller.

De même, lorsque la rangée comporte trois rouleaux équidistants au lieu de deux, comme illustré, le second rouleau comporte sur la face opposée de son moyeu 26 comportant la butée d'entrainement 32 également une butée poussoir 30 apte à coopérer de façon similaire avec une butée d'entrainement 32 du troisième rouleau, l'écart angulaire prédéterminé existant au repos entre ces deux butées étant identique au précédent. Bien entendu, cette configuration peut se répéter avec des rouleaux suivants si la rangée comporte plus de trois rouleaux,Likewise, when the row comprises three equidistant rollers instead of two, as illustrated, the second roll comprises on the opposite face of its hub 26 including the driving abutment 32 also a thrust stopper 30 able to cooperate in a similar manner with a driving abutment 32 of the third roller, the predetermined angular gap existing at rest between these two stops being identical to the previous one. Of course, this configuration can be repeated with subsequent rolls if the row comprises more than three rolls,

Comme l'illustre l'exemple de la figure 3, la butée poussoir 30 qui forme une partie déportée en avant du moyeu 26 du premier rouleau s'étend sur un premier secteur angulaire d'environ 80° entre sa surface 30A de transmission du couple d'entraînement et sa surface de repos 30B et comporte une rainure 30C ou au moins un orifice pour recevoir et fixer la première extrémité d'un ressort de rappel 34 destiné à ramener le rouleau dans sa position d'origine une fois un lot d'articles de courrier traité. La butée d'entrainement 32 qui forme également une partie déportée en avant du moyeu 26, cette fois du second rouleau, s'étend quant à elle sur un second secteur angulaire d'environ 180° entre sa surface menée 32A et sa surface de repos 32B et comporte également une rainure 32C ou au moins un orifice pour recevoir et fixer l'autre extrémité du ressort de rappel 34. On notera le jeu j existant entre ce ressort de rappel et l'axe commun de rotation 28 afin de ne pas serrer cet axe lors de la compression du ressort, ce jeu pouvant être obtenu par exemple en réduisant le diamètre de cet axe entre deux rouleaux.As illustrated by the example of figure 3 , the thrust stop 30 which forms a part offset in front of the hub 26 of the first roller extends over a first angular sector of about 80 ° between its surface 30A of transmission of the driving torque and its resting surface 30B and comprises a groove 30C or at least one orifice for receiving and fixing the first end of a return spring 34 intended to return the roll to its original position once a batch of mail items processed. The driving abutment 32 which also forms a part offset in front of the hub 26, this time of the second roller, extends for its part on a second angular sector of about 180 ° between its driven surface 32A and its rest surface 32B and also comprises a groove 32C or at least one orifice for receiving and fixing the other end of the return spring 34. Note the clearance j existing between the return spring and the common axis of rotation 28 so as not to tighten this axis during the compression of the spring, this clearance can be obtained for example by reducing the diameter of this axis between two rollers.

Bien entendu, les valeurs angulaires des premier et second secteurs sont données à titre indicatif (elles sont aussi différentes d'un rouleau à l'autre lorsque l'écart angulaire est différent), l'essentiel étant de respecter un écart angulaire prédéterminé entre les deux butées, plus précisément entre la surface de transmission 30A de la butée poussoir et la surface menée 32A de la butée d'entrainement. Pour une inclinaison a des rouleaux donnée, la valeur de cet écart prédéterminé est donnée par la formule générique suivante R° = (k α / πd) 360° où k est la distance (x ou y de la figure 1) entre deux rouleaux et d est le diamètre d'un rouleau. Ainsi, par exemple, pour un angle d'inclinaison de 20° et des rouleaux de 45mm de diamètre, on obtient un même écart angulaire de 40° entre deux rouleaux espacés également de 45mm. Lorsque la distance séparant le premier rouleau du second et celle séparant le second du troisième sont différentes, on obtient naturellement des valeurs d'écart angulaires R différentes.Of course, the angular values of the first and second sectors are given as an indication (they are also different from one roll to the other when the angular difference is different), the essential thing being to respect a predetermined angular difference between the two stops, more precisely between the transmission surface 30A of the thrust stop and the driven surface 32A of the drive abutment. For a given inclination to given rolls, the value of this predetermined difference is given by the following generic formula R ° = (k α / πd) 360 ° where k is the distance (x or y of the figure 1 ) between two rolls and d is the diameter of a roll. Thus, for example, for an angle of inclination of 20 ° and rollers of 45mm in diameter, the same angular difference of 40 ° between two rollers also spaced 45mm apart is obtained. When the distance separating the first roll from the second roll and that separating the second roll from the third roll is different, naturally different angular deviation values R are obtained.

Les roues sont réalisées dans un matériau qui est choisi par rapport aux spécifications techniques (abrasion, frottement, élasticité, dureté) attendues de l'entraînement, c'est-à-dire avec un coefficient de frottement suffisamment important pour permettre un entraînement des articles de courrier vers le dispositif de sélection. Un tel matériau est par exemple de la silicone, du caoutchouc naturel, du polyuréthane ou encore de l'éthylènepropylènedienemonomère. Par contre, la jante et son moyeu peuvent être réalisés dans un matériau à faible coût, par exemple un matériau à base de polyoxyméthylène.The wheels are made of a material which is chosen with respect to the technical specifications (abrasion, friction, elasticity, hardness) expected from the drive, that is to say with a coefficient of friction large enough to allow driving of the articles. mail to the selection device. Such a material is, for example, silicone, natural rubber, polyurethane or ethylenepropylenedienemonomer. On the other hand, the rim and its hub can be made of a low-cost material, for example a material based on polyoxymethylene.

Le fonctionnement du dispositif de transport est le suivant. Un premier lot d'enveloppes étant disposé en pile sur le plateau de réception sans se préoccuper de son alignement contre la paroi de mise en référence 20, la mise en route de l'alimenteur va entrainer la rotation de l'axe commun 28 et donc celle des premiers rouleaux de chacune des rangées du dispositif de transport, les autres rouleaux n'étant alors pas encore entrainés. Cette rotation différentielle va entrainer une avancée de l'enveloppe du dessous et un pivotement du lot d'enveloppes qui donc va commencer à se placer dans la direction de transport. Après quelques millisecondes dues au retard angulaire, les seconds rouleaux vont entrer en action et poursuivre à leur tour l'entrainement de l'enveloppe du dessous tout en poursuivant le pivotement de la pile (qui est maintenant plus aisée du fait de cette action simultanée des premier et second rouleaux de chacune des rangées) afin que celle-ci retrouve la direction de transport parallèle à la paroi de mise en référence et vont alors permettre quelques millisecondes plus tard que les troisièmes rouleaux entrent en action. A partir de cet instant, l'ensemble des rouleaux sont entrainés en synchronisme jusqu'à épuisement de la pile et injection de la dernière enveloppe du lot dans le dispositif de sélection. Une fois, la dernière enveloppe injectée, sous l'effet des ressorts de rappel 34 les butées poussoir 30 vont se séparer des butées d'entrainement 32 sur lesquelles elles sont en contact pour reprendre leurs positions d'origine afin de traiter un lot suivant.The operation of the transport device is as follows. A first batch of envelopes being stacked on the receiving tray without worrying about its alignment against the reference wall 20, the start of the feeder will cause the rotation of the common axis 28 and therefore that of the first rollers of each row of the transport device, the other rollers are not yet trained. This differential rotation will cause an advance of the envelope underneath and a pivoting of the batch of envelopes which will therefore start to move in the direction of transport. After a few milliseconds due to the angular delay, the second rollers will come into action and continue in their turn the training of the bottom envelope while continuing the pivoting of the stack (which is now easier because of this simultaneous action of first and second rolls of each row) so that it returns to the direction of transport parallel to the referencing wall and will then allow a few milliseconds later than the third rollers come into action. From this moment, all the rollers are driven in synchronism until the battery is exhausted and the last envelope of the batch is injected into the selection device. Once, the last envelope injected, under the effect of the return springs 34 pusher stops 30 will separate the drive stops 32 on which they are in contact to resume their original positions to process a next batch.

Claims (14)

Dispositif de transport pour alimenteur de machine de traitement de courrier ayant au moins une rangée de rouleaux d'entraînement (16) comportant au moins des premier et second rouleaux d'entrainement traversant un plateau de réception (12) dudit alimenteur et commandés par une cinématique appropriée (18), lesdits premier et second rouleaux d'entraînement étant inclinés d'un angle α perpendiculairement à une paroi longitudinale de mise en référence (20), caractérisé en ce que ledit second rouleau d'entraînement est entraîné en rotation avec un premier retard prédéterminé par rapport au dit premier rouleau d'entraînement, le plus proche de ladite paroi de mise en référence.Transport device for a mail processing machine feeder having at least one row of drive rollers (16) having at least first and second drive rollers passing through a receiving tray (12) of said feeder and controlled by kinematics wherein said first and second drive rollers are inclined at an angle α perpendicular to a longitudinal reference wall (20), characterized in that said second drive roller is rotated with a first predetermined delay with respect to said first drive roller, the closest to said reference wall. Dispositif de transport selon la revendication 1, caractérisé en ce que ledit premier rouleau d'entrainement est constitué par une roue cylindrique (22) montée sur une jante (24) dont le moyeu (26) comporte une butée poussoir (30) apte à transmettre, après ledit premier retard prédéterminé, un couple d'entrainement à une butée d'entrainement (32) dudit second rouleau d'entraînement.Transport device according to claim 1, characterized in that said first driving roller is constituted by a cylindrical wheel (22) mounted on a rim (24) whose hub (26) comprises a thrust stop (30) capable of transmitting after said first predetermined delay, a drive torque to a drive stop (32) of said second drive roller. Dispositif de transport selon la revendication 2, caractérisé en ce que ladite butée poussoir dudit premier rouleau d'entrainement et ladite butée d'entrainement dudit second rouleau d'entrainement sont imbriquées axialement et ont entre elles au repos un premier écart angulaire prédéterminé.Transport device according to claim 2, characterized in that said thrust stopper of said first drive roller and said drive stop of said second drive roller are axially interwoven and have a predetermined first angular gap between them at rest. Dispositif de transport selon la revendication 3, caractérisé en ce que ledit premier écart angulaire prédéterminé est donné par la formule suivante : R1°= (x α/ nd) 360° où x est la distance séparant lesdits premier et second rouleaux d'entrainement et d le diamètre desdits rouleaux d'entrainement.A transport device according to claim 3, characterized in that said first predetermined angular difference is given by the following formula: R1 ° = (x α / nd) 360 ° where x is the distance between said first and second drive rolls and d the diameter of said drive rollers. Dispositif de transport selon la revendication 2, caractérisé en ce que ladite au moins une rangée comporte en outre un troisième rouleau d'entraînement et ledit troisième rouleau d'entraînement est entraîné en rotation avec un second retard prédéterminé par rapport au dit second rouleau d'entrainement.A transport device according to claim 2, characterized in that said at least one row further comprises a third drive roller and said third drive roller is driven by rotation with a second predetermined delay with respect to said second drive roller. Dispositif de transport selon la revendication 5, caractérisé en ce que ledit second rouleau d'entrainement est constitué par une roue cylindrique (22) montée sur une jante (24) dont le moyeu (26) comporte sur une face opposée à ladite butée d'entrainement une butée poussoir (30) apte à transmettre, après ledit second retard prédéterminé, un couple d'entraînement à une butée d'entraînement (32) dudit troisième rouleau d'entraînement.Transport device according to claim 5, characterized in that said second drive roller is constituted by a cylindrical wheel (22) mounted on a rim (24) whose hub (26) comprises on a face opposite said abutment driving a pusher stop (30) able to transmit, after said second predetermined delay, a driving torque to a driving abutment (32) of said third driving roller. Dispositif de transport selon la revendication 6, caractérisé en ce que ladite butée poussoir dudit second rouleau d'entraînement et ladite butée d'entrainement dudit troisième rouleau d'entrainement sont imbriquées axialement et ont entre elles au repos un second écart angulaire prédéterminé.Transport device according to claim 6, characterized in that said thrust stopper of said second drive roller and said drive stop of said third drive roller are axially interwoven and have a second predetermined angular gap between them at rest. Dispositif de transport selon la revendication 7, caractérisé en ce que ledit second écart angulaire prédéterminé est donné par la formule suivante : R2°= (y α/ πd) 360° où y est la distance séparant lesdits second et troisième rouleaux d'entrainement et d le diamètre desdits rouleaux d'entrainement.Transport device according to claim 7, characterized in that said second predetermined angular difference is given by the following formula: R2 ° = (y α / πd) 360 ° where y is the distance separating said second and third drive rollers and d the diameter of said drive rollers. Dispositif de transport selon les revendications 4 et 8, caractérisé en ce que lesdits premier, second et troisième rouleaux d'entrainement sont disposés de façon équidistante de sorte que lesdits premier et second écarts angulaires sont identiques.A transport device according to claims 4 and 8, characterized in that said first, second and third drive rollers are equidistantly arranged so that said first and second angular gaps are identical. Dispositif de transport selon la revendication 9, caractérisé en ce qu'il comporte trois rangées parallèles comportant chacune trois rouleaux d'entrainement.Transport device according to claim 9, characterized in that it comprises three parallel rows each comprising three drive rollers. Dispositif de transport selon les revendications 2 et 6, caractérisé en ce que lesdites butées poussoirs et butées d'entrainement comportent chacune une rainure ou un orifice (30C, 32C) pour recevoir et fixer les extrémités d'un ressort de rappel (34) destiné à ramener les rouleaux d'entrainement dans leur position d'origine.Transport device according to claims 2 and 6, characterized in that said abutment stops and driving abutments each comprise a groove or an orifice (30C, 32C) for receiving and securing the ends of a return spring (34) intended to return the drive rollers to their original position. Dispositif de transport selon la revendication 11, caractérisé en ce qu'il comporte en outre un jeu j entre ledit ressort de rappel et un axe commun (28) de rotation desdits rouleaux d'entraînement afin de ne pas serrer ledit axe commun de rotation lors de la compression du ressort.Transport device according to claim 11, characterized in that it further comprises a clearance j between said return spring and a common axis (28) of rotation of said drive rollers in order not to clamp said common axis of rotation when spring compression. Dispositif de transport selon la revendication 12, caractérisé en ce que ledit jeu est obtenu en réduisant le diamètre dudit axe commun de rotation reliant entre eux deux rouleaux d'entrainement successifs.Transport device according to claim 12, characterized in that said clearance is obtained by reducing the diameter of said common axis of rotation interconnecting two successive drive rollers. Alimenteur pour machine de traitement de courrier comportant un dispositif de transport selon l'une quelconque des revendications 1 à 13.Feeder for a mail processing machine comprising a transport device according to any of claims 1 to 13.
EP10306175.0A 2010-10-27 2010-10-27 Device for transporting mail articles with angular delay Not-in-force EP2447918B1 (en)

Priority Applications (2)

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EP10306175.0A EP2447918B1 (en) 2010-10-27 2010-10-27 Device for transporting mail articles with angular delay
US13/281,853 US8807321B2 (en) 2010-10-27 2011-10-26 Mailpiece feed device having an angular delay

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EP10306175.0A EP2447918B1 (en) 2010-10-27 2010-10-27 Device for transporting mail articles with angular delay

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EP2447918B1 (en) 2015-09-30
US20120103757A1 (en) 2012-05-03

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