EP0525582A1 - Device for unstacking folded, open sheets and method for realizing this device - Google Patents

Device for unstacking folded, open sheets and method for realizing this device Download PDF

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Publication number
EP0525582A1
EP0525582A1 EP92112417A EP92112417A EP0525582A1 EP 0525582 A1 EP0525582 A1 EP 0525582A1 EP 92112417 A EP92112417 A EP 92112417A EP 92112417 A EP92112417 A EP 92112417A EP 0525582 A1 EP0525582 A1 EP 0525582A1
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EP
European Patent Office
Prior art keywords
fold
unstacking
retaining member
detector
transfer means
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
EP92112417A
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German (de)
French (fr)
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EP0525582B1 (en
Inventor
Louis Sabatier
Olivier Roch
Jean-Luc Astier
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Solystic SAS
Original Assignee
Cga Hbs
Compagnie Generale dAutomatisme CGA HBS SA
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Publication of EP0525582A1 publication Critical patent/EP0525582A1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/46—Supplementary devices or measures to assist separation or prevent double feed
    • B65H3/52—Friction retainers acting on under or rear side of article being separated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/08—Separating articles from piles using pneumatic force
    • B65H3/12—Suction bands, belts, or tables moving relatively to the pile
    • B65H3/124—Suction bands or belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/30—Orientation, displacement, position of the handled material
    • B65H2301/32—Orientation of handled material
    • B65H2301/321—Standing on edge

Definitions

  • the present invention relates to a device for unstacking flat objects, in particular mail folds, in particular open, of the advertising brochure or other type, comprising a path for driving a stack of objects on edge in abutment against a bank of jogging, unstacking means disposed in front of the free face of the first ply of the stack and consisting of a translation member at a speed V i perpendicular to the stack, a ply transfer means unstacked at a speed V 2 and a member anti double socket inserted between these two means.
  • Such known devices include, as unstacking means, a member for translating the folds, for example consisting of a rotary perforated drum in which a vacuum is created and causing the first fold at a speed Vi.
  • a transfer member is arranged downstream of this unstacking means, this transfer member being at a speed V 2 , identical to Vi.
  • a member intended to avoid double sockets is generally disposed between these two members, consisting of a brush or hinged flap arrangement.
  • the invention makes it possible to solve these problems of unstacking and double grips on open plies.
  • the double anti-gripping member is a retaining member acting on the other face of the fold, activated as soon as a fold is supported by the transfer means and whose retaining force is less than 1 'translation force of the transfer means, and the speed Vi of the translation member is less than the speed V 2 of the transfer means.
  • a double grip has an offset between the front edges of the two folds concerned.
  • the device thanks to its retaining member, retains the second fold in the event of a double grip and allows the normal passage of the depilated fold in the absence of a double grip.
  • the positioning, management and efficiency of the unstacking and retaining members ensure that the open folds are not damaged.
  • the management of the system guarantees that this actuation is not triggered until said front edge is not driven by said transfer member, in order to avoid the opening of a fold under the antagonistic effects of the member unstacking on the one hand, acting on the rear front of the fold, and the retaining member on the other hand, maintaining the front part of this fold.
  • the activation or deactivation of the unstacking means and of the retaining member is carried out by putting their respective vacuum heads into operation or stopping.
  • the latter represents a destacking device according to the invention in top view.
  • the depression of the member 4 is such that its retaining force is less than the translational force by pinching the transfer means 5.
  • the unstacking means 3 is arranged on one side of the plane of the jogging edge 2 and the retaining member 4 and the transfer means 5 on the other side.
  • Detectors 6, 7, 13 made up of photoelectric sensors are placed on the path of the unstacked fold.
  • the first detector 13 is located downstream of the jogging edge and close to it.
  • the second detector 7 is located further downstream but preferably upstream of the vacuum head 4.
  • the third detector 6 is the most downstream; it is located near the pinch point of the belts 10, 12 of the transfer means 5.
  • the unstacking means 3 drives the fold at speed V i to the pinch point of the transfer means 5 where it is set to speed V 2 .
  • Vi can be equal to 2 m / s and V 2 to 3.2 m / s.
  • the rear edge of the depilated fold disables the sensor 7, deactivating the head 4 and initializing a time delay at the end of which the head 9 is reactivated for unstacking the next fold.
  • the rear edge of the depilated fold disrupts the sensor 6, initializing a time delay at the end of which the head 4 is deactivated and the head 9 reactivated.
  • the second fold is therefore put back in gear. Its front edge obscures the sensor 6, which has the effect of reactivating the head 4 and deactivating the head 9.
  • the rear edge of the second fold will, depending on the condition of sensors 13 and 7, reactivate the head 9 and deactivation of the head 4 according to the possibilities described above and applied to the third fold.
  • a low vacuum chamber 11 is installed next to the unstacking means 3 upstream thereof.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Controlling Sheets Or Webs (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)

Abstract

The present invention relates to a device for removing flat articles, in particular mail covers, from a pile, comprising a path for bringing a pile (1) of covers with edge in abutment against a jogging strip (2), a means (3) for removal from the pile, this means being placed in front of the free face of the first cover of the pile (1) and consisting of a member for translational movement at a speed V1 perpendicular to the pile (1), a means (5) for transferring at a speed V2 the cover removed from the pile and a double-take-preventing member (4) inserted between these two means (3, 5) and characterised in that the double-take-preventing member (4) is a retention member acting on the other face of the cover, activated as soon as a cover is taken up by the transfer means and the retention force of which is less than the force for translationally moving the transfer means (5) and the speed V1 of the translational-movement member (3) is less than the speed V2 of the transfer means (5). <IMAGE>

Description

La présente invention concerne un dispositif de dépilage d'objets plats en particulier de plis de courrier notamment ouverts du type brochures publicitaires ou autres, comportant un chemin d'ame- nage d'une pile d'objets sur chant en butée contre une rive de taquage, un moyen de dépilage disposé devant la face libre du premier pli de la pile et constitué d'un organe de translation à une vitesse Vi perpendiculaire à la pile, un moyen de transfert de pli dépilé à une vitesse V2 et un organe anti prise double intercalé entre ces deux moyens.The present invention relates to a device for unstacking flat objects, in particular mail folds, in particular open, of the advertising brochure or other type, comprising a path for driving a stack of objects on edge in abutment against a bank of jogging, unstacking means disposed in front of the free face of the first ply of the stack and consisting of a translation member at a speed V i perpendicular to the stack, a ply transfer means unstacked at a speed V 2 and a member anti double socket inserted between these two means.

De tels dispositifs connus comportent en tant que moyen de dépilage un organe de mise en translation des plis constitué par exemple d'un tambour perforé rotatif dans lequel est créée une dépression et entraînant le premier pli à une vitesse Vi . Un organe de transfert est disposé en aval de ce moyen de dépilage, cet organe de transfert étant à une vitesse V2, identique à Vi . Un organe destiné à éviter les prises doubles est en général disposé entre ces deux organes, constitué d'un agencement de brosse ou de volet articulé.Such known devices include, as unstacking means, a member for translating the folds, for example consisting of a rotary perforated drum in which a vacuum is created and causing the first fold at a speed Vi. A transfer member is arranged downstream of this unstacking means, this transfer member being at a speed V 2 , identical to Vi. A member intended to avoid double sockets is generally disposed between these two members, consisting of a brush or hinged flap arrangement.

De façon générale, les organes anti prises doubles posent des problèmes d'efficacité.In general, the double anti-catch organs pose efficiency problems.

C'est principalement le cas lorsque les plis traités sont des objets ouverts, de type brochures publicitaires ou autres. Ces brochures peuvent se composer par exemple d'une feuille pliée en plusieurs volets ou de quelques feuillets reliés tel un petit fascicule. Tout dispositif de dépilage classique, basé sur le freinage du pli partant en prise double est alors néfaste et provoque des bourrages ou des déchirements des plis dépilés.This is mainly the case when the folds processed are open objects, such as advertising brochures or other. These brochures can consist, for example, of a sheet folded in several sections or of a few sheets linked like a small booklet. Any conventional unstacking device, based on the braking of the fold leaving in a double grip is then harmful and causes jams or tears in the unstacked folds.

L'invention permet de résoudre ces problèmes de dépilage et de prises doubles sur des plis ouverts.The invention makes it possible to solve these problems of unstacking and double grips on open plies.

Pour ce faire, l'organe anti prise double est un organe de retenue agissant sur l'autre face du pli, activé dès qu'un pli est pris en charge par le moyen de transfert et dont l'effort de retenue est inférieur à l'effort de translation du moyen de transfert, et la vitesse Vi de l'organe de translation est inférieure à la vitesse V2 du moyen de transfert.To do this, the double anti-gripping member is a retaining member acting on the other face of the fold, activated as soon as a fold is supported by the transfer means and whose retaining force is less than 1 'translation force of the transfer means, and the speed Vi of the translation member is less than the speed V 2 of the transfer means.

En effet, l'on peut constater dans la pratique que le nombre de prises doubles où les fronts avant des deux plis coïncident est très faible.Indeed, it can be seen in practice that the number of double takes where the front edges of the two folds coincide is very low.

Ces cas surviennent avec une fréquence inférieure à la fréquence de prises doubles couramment tolérée. En général, une prise double présente un décalage entre les fronts avant des deux plis concernés.These cases occur with a frequency lower than the frequency of double taps currently tolerated. In general, a double grip has an offset between the front edges of the two folds concerned.

Le dispositif grâce à son organe de retenue, retient le deuxième pli en cas de prise double et permet le passage normal du pli dépilé en cas d'absence de prise double. Le positionnement, la gestion et l'efficacité des organes de dépilage et de retenue assurent la non-détérioration des plis ouverts.The device, thanks to its retaining member, retains the second fold in the event of a double grip and allows the normal passage of the depilated fold in the absence of a double grip. The positioning, management and efficiency of the unstacking and retaining members ensure that the open folds are not damaged.

Cette non-détérioration est basée sur deux principes :

  • - une mise en vitesse progressive du pli dépilé en deux étapes permettant de réduire la brutalité du dépilage, ce qui autorise le traitement des plis ouverts.
  • - une mise en action de l'organe de retenue au moment où le front avant du pli est pris en charge pour l'organe de transfert.
This non-deterioration is based on two principles:
  • - a gradual speeding up of the depilated fold in two stages making it possible to reduce the brutality of depilation, which allows the treatment of open folds.
  • - an actuation of the retaining member when the front edge of the fold is taken care of for the transfer member.

La gestion du système garantit que cette mise en action n'est pas déclenchée tant que ledit front avant n'est pas entraîné par ledit organe de transfert, afin d'éviter l'ouverture d'un pli sous les effets antagonistes de l'organe de dépilage d'une part, agissant sur le front arrière du pli, et de l'organe de retenue d'autre part, maintenant la partie avant de ce pli.The management of the system guarantees that this actuation is not triggered until said front edge is not driven by said transfer member, in order to avoid the opening of a fold under the antagonistic effects of the member unstacking on the one hand, acting on the rear front of the fold, and the retaining member on the other hand, maintaining the front part of this fold.

Le pli en prise double, s'il existe, est stoppé par l'organe de retenue. Il ne risque pas d'être détérioré puisqu'il n'est pas au contact de l'organe de dépilage.The fold in double grip, if it exists, is stopped by the retaining member. There is no risk of it being damaged since it is not in contact with the unstacking member.

Lorsque la séparation des deux plis est constatée par un détecteur, ce pli est à son tour engagé dans l'organe de transfert. Afin de gérer le flux de plis dépilés, selon un mode de réalisation préféré, trois détecteurs sont disposés sur la trajectoire du pli dépilé dont :

  • - un premier détecteur situé entre la rive de taquage et l'organe de retenue,
  • - un deuxième détecteur situé à proximité de l'organe de retenue,
  • - un troisième détecteur situé au niveau du point actif d'entraînement du moyen de transfert.
When the separation of the two folds is observed by a detector, this fold is in turn engaged in the transfer member. In order to manage the flow of depilated pleats, according to a preferred embodiment, three detectors are arranged on the path of the depilated ply, of which:
  • - a first detector located between the jogging edge and the retaining member,
  • - a second detector located near the retaining member,
  • - A third detector located at the active drive point of the transfer means.

Le dispositif peut également présenter au moins l'une des caractéristiques suivantes :

  • - le moyen de dépilage est disposé d'un côté du plan de la rive de taquage et l'organe de retenue et le moyen de transfert de l'autre côté.
  • - l'organe de retenue est constitué d'une tête à dépression.
  • - le moyen de dépilage est constitué d'une courroie perforée guidée et actionnée par poulies et associée à une tête à dépression disposée derrière celle-ci.
  • - le moyen de transfert est constitué de deux courroies associées pour agir par pincement.
  • - une chambre à faible dépression est disposée près du moyen de dépilage, en amont de celui-ci.
The device can also have at least one of the following characteristics:
  • - The unstacking means is arranged on one side of the plane of the jogging edge and the retaining member and the transfer means on the other side.
  • - The retaining member consists of a vacuum head.
  • - The unstacking means consists of a perforated belt guided and actuated by pulleys and associated with a vacuum head disposed behind it.
  • - The transfer means consists of two associated belts to act by pinching.
  • - A low vacuum chamber is arranged near the unstacking means, upstream thereof.

L'invention concerne également un procédé de mise en oeuvre du dispositif de dépilage selon lequel :

  • 1) le moyen de dépilage est activé, un pli est translaté, l'organe de retenue étant inactif;
  • 2) Lorsque le deuxième détecteur détecte le pli, l'organe de retenue est activé après une temporisation assurant la prise en charge de ce premier pli par le moyen de transfert et
  • a) Si le premier détecteur ne détecte pas de second pli, le moyen de dépilage est réactivé après temporisation et lorsque le deuxième détecteur ne détecte plus le pli, l'organe de retenue est désactivé et le cycle repris au point 2.
  • b) Si le premier détecteur détecte un second pli, lorsque le deuxième détecteur ne détecte plus le pli, l'organe de retenue est désactivé et le moyen de dépilage est réactivé après temporisation et le cycle repris au point 2.
  • c) Si les premier et deuxième détecteurs détectent un second pli, lorsque le troisième détecteur ne détecte plus le pli, l'organe de retenue est désactivé et le moyen de dépilage réactivée; lorsque le troisième détecteur détecte alors le second pli, l'organe de retenue est réactivé et le moyen de dépilage désactivé et le cycle repris aux point a, b ou c.
The invention also relates to a method of implementing the unstacking device according to which:
  • 1) the unstacking means is activated, a fold is translated, the retaining member being inactive;
  • 2) When the second detector detects the crease, the retainer is activated after a time risation ensuring the handling of this first fold by the transfer means and
  • a) If the first detector does not detect a second fold, the unstacking means is reactivated after time delay and when the second detector no longer detects the fold, the retaining member is deactivated and the cycle resumed in point 2.
  • b) If the first detector detects a second fold, when the second detector no longer detects the fold, the retaining member is deactivated and the unstacking means is reactivated after delay and the cycle resumed in point 2.
  • c) If the first and second detectors detect a second fold, when the third detector no longer detects the fold, the retaining member is deactivated and the unstacking means reactivated; when the third detector then detects the second fold, the retaining member is reactivated and the unstacking means deactivated and the cycle resumed at points a, b or c.

Dans le cas où des têtes à dépression sont employées, l'activation ou la désactivation du moyen de dépilage et de l'organe de retenue est réalisée par mise en service ou arrêt de leur tête à dépression respective.In the case where vacuum heads are used, the activation or deactivation of the unstacking means and of the retaining member is carried out by putting their respective vacuum heads into operation or stopping.

Les fonctions et avantages de ces caractéristiques apparaîtront à la lecture de la description suivante qui concerne un mode de réalisation préféré de l'invention illustré par la figure unique.The functions and advantages of these characteristics will appear on reading the following description which relates to a preferred embodiment of the invention illustrated by the single figure.

Cette dernière représente un dispositif de dépilage conforme à l'invention en vue de dessus.The latter represents a destacking device according to the invention in top view.

Le dispositif se compose essentiellement :

  • - d'un chemin d'amenage sensiblement horizontal d'une pile de plis 1 sur chant en butée contre une rive de taquage 2 sensiblement verticale,
  • - d'un moyen de dépilage 3 disposé devant la face du premier pli de la pile 1 et constitué d'un organe de translation à une vitesse Vi perpendiculaire à la pile 1; il est constitué d'une courroie perforée 8 guidée et actionnée par poulies et associée à une tête à dépression 9 disposée derrière la courroie 8, sur la trajectoire des plis,
  • - d'un organe de retenue 4 constitué d'une tête à dépression agissant sur la face arrière du pli dépilé,
  • - d'un moyen de transfert 5, à une vitesse V2 supérieure à Vi, constitué de deux courroies 10, 12 guidées et actionnées par poulies et agissant par pincement des plis.
The system essentially consists of:
  • a substantially horizontal feed path of a stack of plies 1 on edge abutting against a substantially vertical jogging edge 2,
  • - Unstacking means 3 disposed in front of the face of the first fold of the stack 1 and consisting of a translation member at a speed Vi perpendicular to the stack 1; it consists of a perforated belt 8 guided and actuated by pulleys and associated with a vacuum head 9 disposed behind the belt 8, on the path of the folds,
  • a retaining member 4 consisting of a vacuum head acting on the rear face of the depilated fold,
  • - A transfer means 5, at a speed V 2 greater than Vi, consisting of two belts 10, 12 guided and actuated by pulleys and acting by pinching the folds.

La dépression de l'organe 4 est telle que son effort de retenue est inférieure à l'effort de translation par pincement du moyen de transfert 5.The depression of the member 4 is such that its retaining force is less than the translational force by pinching the transfer means 5.

Le moyen de dépilage 3 est disposé d'un côté du plan de la rive de taquage 2 et l'organe de retenue 4 et le moyen de transfert 5 de l'autre côté.The unstacking means 3 is arranged on one side of the plane of the jogging edge 2 and the retaining member 4 and the transfer means 5 on the other side.

Des détecteurs 6, 7, 13 constitués de capteurs photoélectriques sont disposés sur la trajectoire du pli dépilé.Detectors 6, 7, 13 made up of photoelectric sensors are placed on the path of the unstacked fold.

Le premier détecteur 13 est situé en aval de la rive de taquage et à proximité de celle-ci.The first detector 13 is located downstream of the jogging edge and close to it.

Le deuxième détecteur 7 est situé plus en aval mais de préférence en amont de la tête à dépression 4.The second detector 7 is located further downstream but preferably upstream of the vacuum head 4.

Le troisième détecteur 6 est le plus en aval; il est situé à proximité du point de pincement des courroies 10, 12 du moyen de transfert 5.The third detector 6 is the most downstream; it is located near the pinch point of the belts 10, 12 of the transfer means 5.

Le moyen de dépilage 3 entraîne le pli à la vitesse Vi jusqu'au point de pincement du moyen de transfert 5 où il est mis à la vitesse V2. A titre d'exemples, Vi peut être égale à 2m/s et V2 à 3,2 m/s.The unstacking means 3 drives the fold at speed V i to the pinch point of the transfer means 5 where it is set to speed V 2 . By way of example, Vi can be equal to 2 m / s and V 2 to 3.2 m / s.

Le fonctionnement du dispositif géré grâce aux détecteurs 6, 7, 13 est le suivant :

  • - le premier pli est entraîné par le moyen de dépilage 3, la tête à dépression 9 étant activée,
  • - lorsque le front avant de ce pli est détecté par le capteur 7, la tête 4 est activée après une temporisation assurant la prise en charge du pli dépilé par le moyen de transfert 5,
  • - lorsque le front avant de ce pli est détecté par le capteur 6, la tête 9 est désactivé.
The operation of the device managed by the detectors 6, 7, 13 is as follows:
  • the first fold is driven by the unstacking means 3, the vacuum head 9 being activated,
  • when the front edge of this fold is detected by the sensor 7, the head 4 is activated after a time delay ensuring the handling of the fold unstacked by the transfer means 5,
  • - When the front edge of this fold is detected by the sensor 6, the head 9 is deactivated.

Trois possibilités peuvent survenir :

  • 1) Aucun second pli n'est en prise double et aucun second pli n'a avancé par friction ou accrochage devant le capteur 13. Dans ce cas, le front arrière du pli dépilé désocculte le capteur 13, initialisant une temporisation à l'issue de laquelle la tête 9 est réactivée pour le dépilage du pli suivant. Par ailleurs, le front arrière du pli dépilé désocculte le capteur 7, désactivant la tête 4.
  • 2) Aucun second pli n'est en prise double, mais un second pli a avancé par friction ou accrochage devant le capteur 13.
Three possibilities can arise:
  • 1) No second ply is in double engagement and no second ply has advanced by friction or snagging in front of the sensor 13. In this case, the rear edge of the unstacked ply obscures the sensor 13, initializing a delay at the end from which the head 9 is reactivated for unstacking the next fold. In addition, the rear edge of the depilated fold conceals the sensor 7, deactivating the head 4.
  • 2) No second ply is in a double grip, but a second ply has advanced by friction or hooking in front of the sensor 13.

Dans ce cas, le front arrière du pli dépilé désocculte le capteur 7, désactivant la tête 4 et initialisant une temporisation au terme de laquelle la tête 9 est réactivée pour le dépilage du pli suivant.In this case, the rear edge of the depilated fold disables the sensor 7, deactivating the head 4 and initializing a time delay at the end of which the head 9 is reactivated for unstacking the next fold.

3) Un second pli retenu par la tête 4 est en prise double, occultant les capteurs 13 et 7.3) A second fold retained by the head 4 is in double engagement, obscuring the sensors 13 and 7.

Dans ce cas, le front arrière du pli dépilé désocculte le capteur 6, initialisant une temporisation au terme de laquelle la tête 4 est désactivée et la tête 9 réactivée.In this case, the rear edge of the depilated fold disrupts the sensor 6, initializing a time delay at the end of which the head 4 is deactivated and the head 9 reactivated.

Le second pli est donc remis en vitesse. Son front avant occulte le capteur 6, ce qui a pour effet de réactiver la tête 4 et de désactiver la tête 9.The second fold is therefore put back in gear. Its front edge obscures the sensor 6, which has the effect of reactivating the head 4 and deactivating the head 9.

Le front arrière du second pli permettra, selon l'état des capteurs 13 et 7, la réactivation de la tête 9 et la désactivation de la tête 4 en fonction des possibilités décrites ci-dessus et appliquées au troisième pli.The rear edge of the second fold will, depending on the condition of sensors 13 and 7, reactivate the head 9 and deactivation of the head 4 according to the possibilities described above and applied to the third fold.

Le choix des temporisations évoquées ci-dessus, celui de Vi et V2, enfin celui de la position des capteurs 13, 7, 6 et des organes 9, 4, 5, conduit à maximiser le débit d'objet dépilés en permettant un dépilage à intervalle constant entre plis quelle que soit leur longueur.The choice of timers mentioned above, that of Vi and V 2 , finally that of the position of the sensors 13, 7, 6 and of the organs 9, 4, 5, leads to maximizing the flow of unstacked objects by allowing unstacking at constant interval between plies regardless of their length.

Pour réaliser un prépositionnement des plis à dépiler, une chambre à faible dépression 11 est installée à côté du moyen de dépilage 3 en amont de celui-ci.To preposition the pleats to be unstacked, a low vacuum chamber 11 is installed next to the unstacking means 3 upstream thereof.

Claims (9)

1. Dispositif de dépilage d'objets plats en particulier de plis de courrier notamment ouverts du type brochures publicitaires ou autres, comportant un chemin d'amenage d'une pile de plis (1) sur chant en butée contre une rive de taquage (2), un moyen de dépilage (3) disposé devant la face libre du premier pli de la pile (1) et constitué d'un organe de translation à une vitesse Vi perpendiculaire à la pile (1), un moyen de transfert (5) du pli dépilé à une vitesse V2 et un organe anti prise double (4) intercalé entre ces deux moyens (3, 5) et caractérisé en ce que l'organe anti prise double (4) est un organe de retenue agissant sur l'autre face du pli, activé dès qu'un pli est pris en charge par le moyen de transfert et dont l'effort de retenue est inférieure à l'effort de translation du moyen de transfert (5) et en ce que la vitesse V1 de l'organe de translation (3) est inférieure à la vitesse V2 du moyen de transfert (5).1. Device for unstacking flat objects, in particular mail folds, in particular open, of the advertising brochure or other type, comprising a path for feeding a stack of folds (1) on edge abutting against a jogging edge (2 ), unstacking means (3) disposed in front of the free face of the first ply of the stack (1) and consisting of a translation member at a speed Vi perpendicular to the stack (1), a transfer means (5) of the fold unstacked at a speed V 2 and a double anti-grip member (4) interposed between these two means (3, 5) and characterized in that the double anti-grip member (4) is a retaining member acting on the other side of the fold, activated as soon as a fold is supported by the transfer means and whose retaining force is less than the translational force of the transfer means (5) and in that the speed V1 of the translation member (3) is less than the speed V2 of the transfer means (5). 2. Dispositif selon la revendication 1, caractérisé en ce que des détecteurs sont disposés sur la trajectoire du pli dépilé, dont - un premier détecteur (13) situé entre la rive de taquage (2) et l'organe de retenue (4), - un deuxième détecteur (7) situé à proximité de l'organe de retenue (4), - un troisième détecteur (6) situé au niveau du point actif d'entraînement du moyen de transfert (5). 2. Device according to claim 1, characterized in that detectors are arranged on the path of the depilated fold, of which - a first detector (13) located between the jogging edge (2) and the retaining member (4), - a second detector (7) located near the retaining member (4), - A third detector (6) located at the active drive point of the transfer means (5). 3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que le moyen de dépilage (3) est disposé d'un côté du plan de la rive de taquage (2) et l'organe de retenue (4) et le moyen de transfert (5) de l'autre côté.3. Device according to claim 1 or 2, characterized in that the unstacking means (3) is arranged on one side of the plane of the jogging edge (2) and the retaining member (4) and the means of transfer (5) to the other side. 4. Dispositif selon l'une quelconque des revendications précédentes caractérisé en ce que l'organe de retenue (4) est constitué d'une tête à dépression.4. Device according to any one of the preceding claims, characterized in that the retaining member (4) consists of a vacuum head. 5. Dispositif selon l'une quelconque des revendications précédentes caractérisé en ce que le moyen de dépilage (3) est constitué d'une courroie perforée (8) guidée et actionnée par poulies et associée à une tête à dépression (9) disposée derrière celle-ci (8).5. Device according to any one of the preceding claims, characterized in that the unstacking means (3) consists of a perforated belt (8) guided and actuated by pulleys and associated with a vacuum head (9) disposed behind that -this (8). 6. Dispositif selon l'une quelconque des revendications précédentes caractérisé en ce que le moyen de transfert (5) est constitué de deux courroies (10, 12) associées pour agir par pincement.6. Device according to any one of the preceding claims, characterized in that the transfer means (5) consists of two belts (10, 12) associated to act by pinching. 7. Dispositif selon l'une quelconque des revendications précédentes caractérisé en ce qu'une chambre à faible dépression (11) est disposée près du moyen de dépilage (3), en amont de celui-ci.7. Device according to any one of the preceding claims, characterized in that a low vacuum chamber (11) is arranged near the unstacking means (3), upstream of the latter. 8. Procédé de mise en oeuvre du dispositif conforme à l'une quelconque des revendications 2 à 7, caractérisé en ce que : 1) le moyen de dépilage (3) est activé, un pli est translaté, l'organe de retenue (4) étant inactif; 2) Lorsque le deuxième détecteur (7) détecte le pli, l'organe de retenue (4) est activé après une temporisation assurant la prise en charge de ce premier pli par le moyen de transfert (5) et a) si le premier détecteur (13) ne détecte pas de second pli, le moyen de dépilage (3) est réactivé après temporisation et lorsque le deuxième détecteur (7) ne détecte plus le pli, l'organe de retenue (4) est désactivé et le cycle repris au point 2. b) Si le premier détecteur (13) détecte un second pli, lorsque le deuxième détecteur (7) ne détecte plus le pli, l'organe de retenue (4) est désactivé et le moyen de dépilage (3) est réactivé après temporisation et le cycle repris au point 2. c) Si les premier et deuxième détecteurs (13) et (7) détectent un second pli, lorsque le troisième détecteur (6) ne détecte plus le pli, l'organe de retenue (4) est désactivé et le moyen de dépilage (3) réactivée; lorsque le troisième détecteur (6) détecte alors le second pli, l'organe de retenue (4) est réactivé et le moyen de dépilage désactivé et le cycle repris au point a, b ou c. 8. Method for using the device according to any one of claims 2 to 7, characterized in that: 1) the unstacking means (3) is activated, a fold is translated, the retaining member (4) being inactive; 2) When the second detector (7) detects the fold, the retaining member (4) is activated after a delay ensuring the handling of this first fold by the transfer means (5) and a) if the first detector (13) does not detect a second fold, the unstacking means (3) is reactivated after delay and when the second detector (7) no longer detects the fold, the retaining member (4) is deactivated and the cycle resumed in point 2. b) If the first detector (13) detects a second fold, when the second detector (7) no longer detects the fold, the retaining member (4) is deactivated and the unstacking means (3) is reactivated after delay and the cycle repeated in point 2. c) If the first and second detectors (13) and (7) detect a second fold, when the third detector (6) no longer detects the fold, the retaining member (4) is deactivated and the unstacking means (3 ) reactivated; when the third detector (6) then detects the second fold, the retaining member (4) is reactivated and the unstacking means deactivated and the cycle resumed at point a, b or c. 9. Procédé de mise en oeuvre selon la revendication 8 du dispositif conforme aux revendications 4 et 5, caractérisé en ce que l'activation ou la désactivation du moyen de dépilage (3) et de l'organe de retenue (4) est réalisée par mise en service ou arrêt de leur tête à dépression respective.9. Method of implementation according to claim 8 of the device according to claims 4 and 5, characterized in that the activation or deactivation of the unstacking means (3) and of the retaining member (4) is carried out by putting into service or stopping their respective vacuum head.
EP92112417A 1991-07-25 1992-07-21 Device for unstacking folded, open sheets and method for realizing this device Expired - Lifetime EP0525582B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9109431A FR2679540A1 (en) 1991-07-25 1991-07-25 DEVICE FOR UNPACKING MAIL PACKS, IN PARTICULAR OPEN AND METHOD FOR IMPLEMENTING THE DEVICE.
FR9109431 1991-07-25

Publications (2)

Publication Number Publication Date
EP0525582A1 true EP0525582A1 (en) 1993-02-03
EP0525582B1 EP0525582B1 (en) 1995-08-16

Family

ID=9415533

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92112417A Expired - Lifetime EP0525582B1 (en) 1991-07-25 1992-07-21 Device for unstacking folded, open sheets and method for realizing this device

Country Status (6)

Country Link
US (1) US5290022A (en)
EP (1) EP0525582B1 (en)
JP (1) JPH07115763B2 (en)
CA (1) CA2074560C (en)
DE (1) DE69204125T2 (en)
FR (1) FR2679540A1 (en)

Cited By (4)

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EP0645329A1 (en) * 1993-09-27 1995-03-29 Compagnie Generale D'automatisme Cga-Hbs Apparatus for preventing double feed and separating device with such an apparatus
EP0645330A1 (en) * 1993-09-27 1995-03-29 Compagnie Generale D'automatisme Cga-Hbs Gripping device for flat objects and separating apparatus provided with such a gripping device
US5913512A (en) * 1995-01-16 1999-06-22 Grapha-Holding Ag Device for separating flat objects which are supplied in stacked form
EP1837296A2 (en) * 2006-03-24 2007-09-26 Kabushiki Kaisha Toshiba Device and method for taking out sheets

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FR2696163B1 (en) * 1992-09-25 1994-11-04 Cga Hbs Stacker for flat articles including a tracker.
GB2276871B (en) * 1993-04-07 1997-04-23 Licentia Gmbh Method of and apparatus for separately removing flat articles from a stack
FR2710626B1 (en) * 1993-09-27 1995-11-10 Cga Hbs Device for transferring flat objects and unstacking device equipped with this transfer device.
US5899449A (en) * 1997-01-21 1999-05-04 Xerox Corporation Top vacuum corrugation feeder with articulating suction fingers
US6354583B1 (en) * 1999-01-25 2002-03-12 Bell & Howell Mail And Messaging Technologies Company Sheet feeder apparatus and method with throughput control
US6443444B1 (en) * 1999-10-04 2002-09-03 Lockhead Martin Corporation Singulation mechanism
US6378692B1 (en) 1999-10-04 2002-04-30 Lockheed Martin Corporation Take-away mechanism for mail or other flat article handling system
US6315286B1 (en) 1999-12-07 2001-11-13 Pitney Bowes Inc. Jogger system for a mixed mail cancellation feeder
US6575450B2 (en) 2001-01-30 2003-06-10 Lockheed Martin Corporation Singulation mechanism
KR100902983B1 (en) * 2006-05-11 2009-06-15 가부시끼가이샤 도시바 Paper sheet separating and take-out device
FR2948109B1 (en) * 2009-07-16 2011-06-17 Solystic DEVICE FOR DEPILING FLAT OBJECTS WITH DETECTION OF THE TRACE OF OBJECTS DEPILED
EP2639190B1 (en) * 2012-03-16 2017-07-19 Kabushiki Kaisha Toshiba Sheet-handling apparatus

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0645329A1 (en) * 1993-09-27 1995-03-29 Compagnie Generale D'automatisme Cga-Hbs Apparatus for preventing double feed and separating device with such an apparatus
EP0645330A1 (en) * 1993-09-27 1995-03-29 Compagnie Generale D'automatisme Cga-Hbs Gripping device for flat objects and separating apparatus provided with such a gripping device
FR2710624A1 (en) * 1993-09-27 1995-04-07 Cga Hbs Gripper for flat objects and unstacking device equipped with this gripper.
FR2710625A1 (en) * 1993-09-27 1995-04-07 Cga Hbs Device for separating double jacks and unstacking device of flat objects equipped with this separator.
US5520380A (en) * 1993-09-27 1996-05-28 Compagnie Generale D"Automatisme CGA HBS Double pick separator device and flat object unstacking device equipped with this separator
US5913512A (en) * 1995-01-16 1999-06-22 Grapha-Holding Ag Device for separating flat objects which are supplied in stacked form
EP1837296A2 (en) * 2006-03-24 2007-09-26 Kabushiki Kaisha Toshiba Device and method for taking out sheets
EP1837296A3 (en) * 2006-03-24 2009-07-22 Kabushiki Kaisha Toshiba Device and method for taking out sheets
US7628393B2 (en) 2006-03-24 2009-12-08 Kabushiki Kaisha Toshiba Device and method for taking out sheets

Also Published As

Publication number Publication date
FR2679540B1 (en) 1995-02-10
CA2074560A1 (en) 1993-01-26
JPH05270672A (en) 1993-10-19
DE69204125D1 (en) 1995-09-21
US5290022A (en) 1994-03-01
JPH07115763B2 (en) 1995-12-13
CA2074560C (en) 1998-06-23
FR2679540A1 (en) 1993-01-29
EP0525582B1 (en) 1995-08-16
DE69204125T2 (en) 1996-01-11

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