EP0624144B1 - Procede et appareil pour trier automatiquement des objets en forme de feuilles - Google Patents

Procede et appareil pour trier automatiquement des objets en forme de feuilles Download PDF

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Publication number
EP0624144B1
EP0624144B1 EP93903368A EP93903368A EP0624144B1 EP 0624144 B1 EP0624144 B1 EP 0624144B1 EP 93903368 A EP93903368 A EP 93903368A EP 93903368 A EP93903368 A EP 93903368A EP 0624144 B1 EP0624144 B1 EP 0624144B1
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EP
European Patent Office
Prior art keywords
objects
stream
bundle
fishscale
grouping
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP93903368A
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German (de)
English (en)
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EP0624144A1 (fr
Inventor
Nils Jonny Mejdahl
Per Gunnar Swartz
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Individual
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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
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/66—Advancing articles in overlapping streams
    • B65H29/669—Advancing articles in overlapping streams ending an overlapping stream
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/66—Advancing articles in overlapping streams
    • B65H29/6609—Advancing articles in overlapping streams forming an overlapping stream
    • B65H29/6618—Advancing articles in overlapping streams forming an overlapping stream upon transfer from a first conveyor to a second conveyor advancing at slower speed
    • B65H29/6636—Advancing articles in overlapping streams forming an overlapping stream upon transfer from a first conveyor to a second conveyor advancing at slower speed in combination with auxiliary means for underlapping articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H33/00—Forming counted batches in delivery pile or stream of articles
    • B65H33/12—Forming counted batches in delivery pile or stream of articles by creating gaps in the stream
    • 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
    • B65H2301/40—Type of handling process
    • B65H2301/42—Piling, depiling, handling piles
    • B65H2301/421—Forming a pile
    • B65H2301/4212—Forming a pile of articles substantially horizontal
    • B65H2301/42122—Forming a pile of articles substantially horizontal by introducing articles from under the pile
    • 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
    • B65H2301/40—Type of handling process
    • B65H2301/42—Piling, depiling, handling piles
    • B65H2301/421—Forming a pile
    • B65H2301/4213—Forming a pile of a limited number of articles, e.g. buffering, forming bundles

Definitions

  • the present invention relates to a method of automatically sorting sheet-like objects into bundled groups, in which the objects are advanced in rows.
  • the invention is intended for application when sorting, among other things, computer printouts, both in a folded and non-folded state, envelopes, so-called mailers, etc.
  • the invention also relates to arrangement for carrying out the method.
  • the objects are delivered to a row of mutually sequential bundling or stacking stations, in which the objects are bundled on a raisable and lowerable bottom device at respective locations, and wherein bundled objects are placed on conveyors which move along the rows of bundling stations and later removed therefrom.
  • This known technique is encumbered with a number of serious draw-backs. For instance, the arrangement of rows of bundling stations and a conveyor which is common to all said stations places serious restrictions on the speed at which the objects can be sorted, while requiring the use of an intricate control system.
  • EP-A-0 352 374 and WO 91/08974 discloses technique according to which bundles are formed by adding each new object on top of preceding, stationary objects, which calls for vertically movable bundle platforms. This extends the system vertically and reduces the flexibility of choice and change of bundle size.
  • the present invention provides a method and an arrangement which enables the objects to be sorted very quickly and which include significant simplifications in comparison with the known methods and arrangements of the kind meant here.
  • the invention relates to a method of sorting sheet-like objects into bundled groups, in which the objects are advanced in rows.
  • the objects are arranged in a fishscale-like configuration in which each object is partially overlapped by an immediately preceding object, as seen in the direction of advancement, the objects being stacked together from beneath.
  • the invention also relates to an arrangement for sorting sheet-like objects into bundled groups which include conveyor means for advancing the objects in rows.
  • the arrangement comprises devices which are active in placing the objects in a fishscale-like configuration, in which each objects is partially overlapped by an immediately preceding object as seen in the direction of advancement, and devices which are active in stacking the objects from beneath.
  • Figure 1 shows sheet-like objects 1 which are intended to be sorted by the inventive arrangement into bundles 2 in a predetermined fashion.
  • the arrangement includes primarily an object aligning and conveying section 3 and an object grouping section 4.
  • the objects can be introduced into the object aligning and conveying section 3 from the front of said section, i.e. in the main object conveying direction of the arrangement, as indicated by an arrow 5 in Figure 1, or from the side of said section, as indicated by an arrow 6 in Figure 1.
  • the objects are brought into edge-alignment with one another in the aligning section 3 against a side bar 7 with the aid of an obliquely positioned feeder 8, such as a belt 8, and advanced in said section towards the object grouping section 4.
  • the grouping section 4 is constructed to orientate the objects 1 in a fishscale-like configuration at that end of the section which faces towards the aligning and conveying section, such that the objects will be partially overlapped by a respective preceding object, as seen in the direction of advancement.
  • the arrangement includes a braking and lifting device 10 which is passed by the objects and which functions to brake respective objects and to raise the rear part 11 of said objects, so that the immediately following object will be partially overlapped by the braked and raised preceding object, as illustrated schematically in Figure 2.
  • the lifting and braking device includes roller means 12, which in the Figure 1 embodiment have the form of disc-shaped rollers 12 which rotate about an axle 13 which extends transversely to the direction in which the objects are advanced such as to lift said objects, and also braking means 14 in the form of roller means 15, which in the illustrated case have the form of disc-shaped rollers 15 which rotate about an axle 16 which extends transversely to the direction in which the objects are advanced and which functions to slow down the objects in their respective raised positions, so that the next following object will be partially inserted beneath the immediately preceding object.
  • the brake means or object retarding means 14 can be adjusted in the conveying direction, so as to adapt to the current sizes of the objects, as indicated by the double-headed arrow 17 in Figure 1.
  • the illustrated arrangement also includes a stacking or bundling device 18 which functions to stop the fishscale-configured stream of objects so as to form a bundle 2, as a result of following objects being continuously inserted beneath preceding objects which have been stopped by the stacking device 18 and therewith form a stack or bundle of objects, as shown schematically in Figure 2.
  • the stacking device includes a forked member 19 which is provided with upwardly turned stop shoulders 20 against which the objects are intended to be stopped.
  • the forked member 19 is pivotal about an axle 21 which extends transversely to the object conveying direction and which is intended to be held in a stop position by means of a spring force, and which is rotated counter-clockwise in Figure 2 against said spring force by means of an electromagnetic pulling device 22, wherein the stop shoulders are intended to be lowered so that the objects/bundles that are stopped by the stop shoulders can be released for further transportation.
  • the arrangement includes a grouping device 23 which is located upstream of the stacking device and which functions to stop the flow of mutually overlapping objects so as to create an interruption in the flow upstream of said stacking device, this interruption being intended to delimit two mutually sequential groups of objects, as shown schematically in Figure 2.
  • the grouping device includes a forked member 19 of the same kind as that included in the stacking device for stopping and releasing objects.
  • the illustrated arrangement also includes a first sensor 24 which detects the last object 1' that is allowed through by the grouping device prior to an interruption and which also sends to the grouping device a signal instructing the device to release the stream of objects.
  • the arrangement also includes a second sensor 25 which detects the last object 1' to be allowed to pass through and also functions to send to the stacking device a signal instructing said device to release the bundle 2' in which the object 1' is at the bottom ofthe bundle.
  • the arrangement also includes a third sensor 26 which detects when the bundle 2' has been released from the stacking device and has left the device, and functions to send to the stacking device a signal which causes the stream of objects to be stopped and a further bundle formed.
  • the grouping device is constructed to be activated in a manner to cause an interruption in the stream of objects in receipt of a signal sent from a sign reader 27 which is located upstream of the grouping device and which functions to distinguish between the different objects in the object stream by means of distinguishing marks on said objects and/or by means of a height detecting means 28 which functions to detect the height of a bundle formed in the vicinity of the stacking device.
  • the aforesaid last object 1' which is allowed to pass through is drawn past the grouping device by means of rollers 29.
  • a fourth sensor 30 is provided in the vicinity of the object braking and lifting device and functions to detect errors in the fishscale-like configuration of the objects and to send a signal to the grouping device instructing said device to stop the stream of objects when such a fault is detected.
  • the reference numeral 31 identifies belts which form part of a grouping section conveyor 32, which is active to draw, convey, the objects through the grouping section.
  • the method according to the present invention and also the manner of operation of the inventive arrangement will be understood in all essentials from the aforegoing.
  • the objects are arranged in a fishscale-like configuration and stacked together from beneath in the stacking device, in which the objects are stopped.
  • the stream of mutually overlapping objects is divided by the grouping device into bundles which correspond to different groups or classes of objects.
  • the devices 24, 25, 30, 26, 27, 28 for detecting objects, bundles, distinguishing between the different objects and for detecting the heights of the bundles are suitably of a known kind.
  • the sign reader 27 is an optical reader, for instance a black/white reader, for contactless detection and identification of signs or markings on the objects and/or for counting the objects.
  • the sensors 24, 25, 26 and 30 include photo-readers which detect reflected light and therewith detect whether or not an object is located in the position monitored by a respective sensor.
  • the height detector 28 will preferably include level sensors which function to detect bundle height, and particularly when a predetermined bundle height has been reached, said level sensors being arranged essentially transversely to the height direction of the bundle 2'.
  • the level sensor 28 may also be of a kind which includes distance measuring means active in measuring the distance to the upper surface of the bundle 2'.
  • the inventive arrangement may include a more or less intricate control system, not shown.
  • the control system may, in the present respect, include devices which enable the division of the objects into groups in response to a signal delivered by a level sensor 28 or a sign reader 27, or by both in combination.
  • a more active control system can also be envisaged, in which the conveying speed of the conveyor 32 is detected by means of a pulse disc or in some other suitable known manner, and in which, among other things, predetermined delays are introduced while taking the conveyor speed into account, so as to achieve the aforedescribed working method of the arrangement.
  • one sorting criterion with regard to the division of bundled groups can be the type of object concerned, so that different types of objects will be sorted into respective different bundles and/or the division can be effected in accordance with the height of the bundles, so that the objects will be sorted into bundles of predetermined heights.
  • Another sorting criterion which can be used separately or in combination with one or more of the other criteria may be the number of objects concerned.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packaging Of Special Articles (AREA)

Claims (16)

  1. Procédé pour trier des objets analogues à des feuilles en groupes pour former des liasses ou piles (2, 2'), dans lequel les objets sont avancés en rangées puis disposés dans une configuration analogue à des écailles de poisson, caractérisé en ce qu'on arrête un flux d'objets se chevauchant partiellement, dans une configuration analogue à des écailles de poisson, dans lequel un objet suivant est partiellement inséré au-dessous d'un objet précédent respectif tel que vu dans le sens d'avance, au moyen d'un dispositif de groupage (23), afin d'interrompre le flux d'objets, cette interruption séparant mutuellement deux groupes mutuellement consécutifs d'objets, avant d'arrêter le courant d'objets, se chevauchant mutuellement, d'un groupe à l'aide d'un dispositif d'empilage (18), et en ce qu'on forme ladite liasse ou pile (2, 2') d'objets en insérant en continu les objets du groupe au-dessous des objets immobiles précédents, pour former ladite liasse ou pile.
  2. Procédé selon la revendication 1, caractérisé en ce qu'on fait passer la rangée d'objets à travers un dispositif élévateur (12, 13) qui fonctionne de façon à maintenir la partie arrière (11) d'objets respectifs dans une position élevée tandis que l'objet immédiatement suivant est inséré partiellement au-dessous de la partie élevée de l'objet immédiatement précédent.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce qu'on libère une liasse (2, 2') contenant un nombre prédéterminé d'objets par l'intermédiaire du dispositif d'empilage, et on transporte ladite liasse à l'écart.
  4. Procédé selon la revendication 1, 2 ou 3, caractérisé en ce qu'on détecte le dernier objet (1') que le dispositif de groupage laisse passer avant une interruption, dans lequel le courant d'objets est libéré au moyen du dispositif de groupage lorsque ledit dernier objet a franchi une position prédéterminée entre le dispositif d'empilage et le dispositif de groupage ; et on libère la liasse (2') dans laquelle ledit objet forme l'objet le plus bas, par l'intermédiaire du dispositif d'empilage, après quoi le courant d'objets est de nouveau arrêté au moyen du dispositif d'empilage.
  5. Procédé selon la revendication 1, 2, 3 ou 4, caractérisé en ce qu'on active le dispositif de groupage pour provoquer une interruption du courant d'objets en réponse à un signal délivré par un lecteur (27) de signes qui est placé en amont du dispositif de groupage et qui fonctionne de façon à détecter la nature des objets dans le courant d'objets et/ou à compter lesdits objets (1), et/ou délivré par un détecteur (28) de hauteur qui fonctionne de façon à détecter la hauteur d'une liasse formée au voisinage du dispositif d'empilage.
  6. Procédé selon la revendication 1, 2, 3, 4 ou 5, caractérisé en ce qu'on arrête le courant d'objets vers le dispositif de groupage lorsqu'un défaut est détecté dans la configuration des objets analogue à des écailles de poisson.
  7. Procédé selon la revendication 1, 2, 3, 4, 5 ou 6, caractérisé en ce qu'on amène les objets en alignement par le bord, contre une barre latérale (7) à l'aide d'un guide (8) positionné obliquement avant d'agencer les objets dans ladite configuration analogue à des écailles de poisson.
  8. Agencement pour trier des objets analogues à des feuilles en groupes pour former des liasses ou piles (2, 2'), comportant des moyens transporteurs (3) destinés à faire avancer les objets en rangées et des dispositifs (10-16) qui sont actifs dans l'agencement des objets dans une configuration analogue à des écailles de poisson, caractérisé en ce que lesdits dispositifs (10-16) sont actifs pour agencer les objets dans une configuration analogue à des écailles de poisson, dans laquelle un objet est partiellement inséré au-dessous d'un objet immédiatement précédent tel que vu dans la direction d'avance, un dispositif de groupage (23) étant prévu, lequel est actif pour arrêter un courant desdits objets dans une configuration analogue à des écailles de poisson afin d'engendrer une interruption dans ledit courant en amont d'un dispositif d'empilage (18), ladite interruption étant destinée à délimiter deux groupes mutuellement consécutifs d'objets, ledit dispositif d'empilage (18) étant actif pour arrêter le courant desdits objets d'un groupe, dans la configuration analogue à des écailles de poisson, de façon qu'un courant continu des objets du groupe soit inséré au-dessous des objets immobiles, précédents, pour former ladite liasse ou pile (2, 2').
  9. Agencement selon la revendication 8, caractérisé par un dispositif (10) de freinage et d'élévation, qui est destiné à être franchi par lesdits objets en rangées et qui est actif pour maintenir la partie arrière (11) d'objets respectifs dans une position élevée tandis qu'une partie d'un objet immédiatement suivant est insérée au-dessous de l'objet précédent élevé.
  10. Agencement selon la revendication 9, caractérisé en ce que le dispositif (10) de freinage et d'élévation comprend des moyens à rouleaux (12) qui peuvent tourner autour d'un axe (13) qui s'étend transversalement à la direction dans laquelle les objets avancent afin d'élever lesdits objets.
  11. Agencement selon la revendication 9 ou 10, caractérisé en ce que le dispositif (10) de freinage et d'élévation comprend des moyens de freinage (15) avantageusement sous la forme de moyens à rouleaux (15) qui peuvent tourner autour d'un axe (16) qui s'étend transversalement à la direction d'avance des objets et qui fonctionnent de façon à arrêter lesdits objets dans une position partiellement élevée, établie par ledit dispositif d'élévation, afin que l'objet arrivant ensuite soit inséré partiellement au-dessous de l'objet immédiatement précédent.
  12. Agencement selon la revendication 8, 9, 10 ou 11, caractérisé par des dispositifs (19, 20, 21, 22) qui fonctionnent de façon à libérer une liasse d'une dimension prédéterminée formée par ledit dispositif d'empilage (18), et à évacuer ladite liasse.
  13. Agencement selon la revendication 8, 9, 10, 11 ou 12, caractérisé par des moyens capteurs (24, 25, 26) qui fonctionnent de façon à détecter le dernier objet (1') que le dispositif de groupage laisse passer avant une interruption, et à délivrer un signal au dispositif d'empilage pour libérer la liasse (2') dans laquelle le dernier objet (1') forme l'objet le plus bas, et à délivrer un signal au dispositif de groupage pour libérer le courant d'objets lorsque ledit dernier objet a franchi une position prédéterminée entre le dispositif d'empilage et le dispositif de groupage, et à délivrer un signal au dispositif d'empilage demandant par instruction audit dispositif d'arrêter de nouveau le flux d'objets afin de former une nouvelle liasse.
  14. Agencement selon la revendication 8, 9, 10, 11, 12 ou 13, caractérisé en ce que le dispositif de groupage est destiné à être activé pour engendrer une interruption dans le courant d'objets en réponse à un signal provenant d'un lecteur (27) de signes placé en amont du dispositif de groupage et fonctionnant de façon à détecter la nature des objets dans ledit courant et/ou à compter lesdits objets à l'aide de signes ou de marquages sur les objets et/ou en réponse à un signal délivré par un capteur (28) de hauteur qui fonctionne de façon à déterminer la hauteur d'une liasse formée au voisinage du dispositif d'empilage.
  15. Agencement selon la revendication 8, 9, 10, 11, 12, 13 ou 14, caractérisé par des dispositifs (30) qui fonctionnent de façon à détecter un défaut dans la configuration des objets, analogue à des écailles de poisson, et à arrêter le courant d'objets vers le dispositif de groupage lorsqu'un tel défaut est détecté.
  16. Agencement selon la revendication 8, 9, 10, 11, 12, 13, 14 ou 15, caractérisé par un guide (8) positionné obliquement qui fonctionne de façon à amener les objets en alignement par le bord contre une barre latérale (7) avant d'orienter lesdits objets dans ladite configuration analogue à des écailles de poisson.
EP93903368A 1992-01-29 1993-01-25 Procede et appareil pour trier automatiquement des objets en forme de feuilles Expired - Lifetime EP0624144B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9200249A SE469798B (sv) 1992-01-29 1992-01-29 Förfarande och anordning för automatisk sortering av arkformiga objekt
SE9200249 1992-01-29
PCT/SE1993/000051 WO1993015006A1 (fr) 1992-01-29 1993-01-25 Procede et appareil pour trier automatiquement des objets en forme de feuilles

Publications (2)

Publication Number Publication Date
EP0624144A1 EP0624144A1 (fr) 1994-11-17
EP0624144B1 true EP0624144B1 (fr) 1998-05-13

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Application Number Title Priority Date Filing Date
EP93903368A Expired - Lifetime EP0624144B1 (fr) 1992-01-29 1993-01-25 Procede et appareil pour trier automatiquement des objets en forme de feuilles

Country Status (5)

Country Link
EP (1) EP0624144B1 (fr)
AU (1) AU3465993A (fr)
DE (1) DE69318544D1 (fr)
SE (1) SE469798B (fr)
WO (1) WO1993015006A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4333575A1 (de) * 1993-10-01 1995-04-06 Boewe Systec Ag Verfahren und Vorrichtung zum Bilden und Versetzen von Stapeln aus bedruckten Blättern, insbesondere Belegen
DE19950354C1 (de) * 1999-10-19 2001-06-07 Boewe Systec Ag Verfahren und Vorrichtung zum Bilden von Blattgruppen aus einer Mehrzahl von Blättern
WO2003031299A1 (fr) 2001-10-05 2003-04-17 Ferag Ag Procede pour traiter des produits plans et dispositif pour mettre ledit procede en oeuvre
ATE512106T1 (de) 2002-03-22 2011-06-15 Magnum Mfg Ltd Verfahren und vorrichtung zur bildung eines geschuppten bogenstroms in einer bogenzuführvorrichtung und zum zuführen des geschuppten bogenstroms in einer druckmaschine
CN103130013B (zh) * 2013-02-05 2015-04-08 玉田县大恒印刷机械有限公司 砂纸码垛机及其砂纸码垛方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0352374A1 (fr) * 1987-08-06 1990-01-31 Merrill David Martin Machine pour la manipulation de feuilles
WO1991008974A1 (fr) * 1989-12-12 1991-06-27 Jagenberg Aktiengesellschaft Procede et dispositif de freinage de feuilles a empiler, notamment de feuilles de papier ou de carton

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7312656A (nl) * 1973-09-13 1975-03-17 Packotom B V Inrichting voor het stapelen van losse vellen.
US4270743A (en) * 1978-06-29 1981-06-02 Hamilton Tool Company Forward numbering or underlap sheet delivery
FR2597847B1 (fr) * 1986-04-29 1989-04-21 Chambon Machines Machine de reception et d'empilage de flans decoupes

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0352374A1 (fr) * 1987-08-06 1990-01-31 Merrill David Martin Machine pour la manipulation de feuilles
WO1991008974A1 (fr) * 1989-12-12 1991-06-27 Jagenberg Aktiengesellschaft Procede et dispositif de freinage de feuilles a empiler, notamment de feuilles de papier ou de carton

Also Published As

Publication number Publication date
AU3465993A (en) 1993-09-01
SE9200249D0 (sv) 1992-01-29
WO1993015006A1 (fr) 1993-08-05
SE469798B (sv) 1993-09-13
DE69318544D1 (de) 1998-06-18
SE9200249L (sv) 1993-07-30
EP0624144A1 (fr) 1994-11-17

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