EP0333596A1 - Vorrichtung zum Stapeln von flachen Gegenständen, wie Briefe - Google Patents

Vorrichtung zum Stapeln von flachen Gegenständen, wie Briefe Download PDF

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Publication number
EP0333596A1
EP0333596A1 EP89400752A EP89400752A EP0333596A1 EP 0333596 A1 EP0333596 A1 EP 0333596A1 EP 89400752 A EP89400752 A EP 89400752A EP 89400752 A EP89400752 A EP 89400752A EP 0333596 A1 EP0333596 A1 EP 0333596A1
Authority
EP
European Patent Office
Prior art keywords
stack
stacking
support
transport
flat objects
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
EP89400752A
Other languages
English (en)
French (fr)
Other versions
EP0333596B1 (de
Inventor
Jean-Pierre Volat
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.)
Bertin Technologies SAS
Original Assignee
Bertin et Cie 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 Bertin et Cie SA filed Critical Bertin et Cie SA
Priority to AT89400752T priority Critical patent/ATE85962T1/de
Publication of EP0333596A1 publication Critical patent/EP0333596A1/de
Application granted granted Critical
Publication of EP0333596B1 publication Critical patent/EP0333596B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B65H31/00—Pile receivers
    • B65H31/30—Arrangements for removing completed piles
    • B65H31/3072—Arrangements for removing completed piles by moving a surface supporting the pile of articles on edge, e.g. by using belts or carriages
    • 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
    • B65H29/12—Delivering or advancing articles from machines; Advancing articles to or into piles by means of the nip between two, or between two sets of, moving tapes or bands or rollers
    • B65H29/14—Delivering or advancing articles from machines; Advancing articles to or into piles by means of the nip between two, or between two sets of, moving tapes or bands or rollers and introducing into a 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
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/20—Delivering or advancing articles from machines; Advancing articles to or into piles by contact with rotating friction members, e.g. rollers, brushes, or cylinders
    • B65H29/22—Delivering or advancing articles from machines; Advancing articles to or into piles by contact with rotating friction members, e.g. rollers, brushes, or cylinders and introducing into a 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
    • B65H31/00—Pile receivers
    • B65H31/04—Pile receivers with movable end support arranged to recede as pile accumulates
    • B65H31/06—Pile receivers with movable end support arranged to recede as pile accumulates the articles being piled on edge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H83/00—Combinations of piling and depiling operations, e.g. performed simultaneously, of interest apart from the single operation of piling or depiling as such
    • B65H83/02—Combinations of piling and depiling operations, e.g. performed simultaneously, of interest apart from the single operation of piling or depiling as such performed on the same pile or stack
    • 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
    • B65H2301/422—Handling piles, sets or stacks of articles
    • B65H2301/4226—Delivering, advancing piles
    • B65H2301/42265—Delivering, advancing piles by moving the surface supporting the pile of articles on edge, e.g. conveyor or carriage
    • 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

Definitions

  • the invention relates to a device for forming a stack of flat objects, such as for example letters, postal envelopes or the like, on a dihedral-shaped support with two perpendicular walls on which the flat objects are supported by a front edge and a side edge.
  • Such a device can be used in particular in postal sorting installations, for example to form a buffer stock of letters between two sorting machines.
  • Letters leaving a machine of this type are generally stored in boxes which are transported to the next machine.
  • a stack of letters is placed by hand on a support in the form of a right dihedral at one end of which is provided an unstacking device which removes the letters one by one from the stack and places them at the entrance of means of transport supplying a other machine.
  • the letters are generally pinched between two belts or endless bands guided on rollers along the path to be traveled, being arranged between the belts either in tiled formation (the front edge of a letter covering the rear edge from the previous letter), or separated from each other.
  • German patent application 3,237,815 is a device for forming a stack of letters on a dihedral-shaped support, this device comprising means for transporting letters to the immediate vicinity of the support, means for stacking letters on the support, and means for relative displacement of the means of transport and means for stacking relative to the support or to the stack of letters formed on the support.
  • the means for stacking the letters on the support are pivotally mounted on the end of the means for transporting the letters, so as to be able to move away from the stack of letters and control their advance, for example when a relatively thick letter arrives.
  • this known device does not very well accept particularly rigid or particularly thick letters. This malfunction is further accentuated by the fact that the letter stacking means are oriented slightly at an angle to the stack of letters and cause the upper letters of the stack to fold.
  • the inertia of the pivoting assembly comprising the letter stacking means is relatively large, which prohibits high rates of routing of stacking letters on the support.
  • the invention relates to a device of this type, not having the defects and drawbacks mentioned above.
  • a device for forming a stack of flat objects from means bringing these objects one after the other, in tiled formation or one after the other, making it possible to form a stack of variable length with input and output of flat objects independent of each other, and simultaneous or not.
  • It also relates to a device of this type which is capable of working at a very high rate.
  • the invention therefore provides a device for forming a stack of flat objects such as letters on a dihedral-shaped support with two perpendicular walls on which the flat objects are supported by a front edge and a lateral edge, this device comprising transport means for bringing the flat objects one after the other onto the support with a predetermined orientation, close to that which they must occupy in the stack; the means for stacking flat objects on the support, by sliding each flat object on the previous flat object of the stack and abutting on a jogging wall of the support; and means for relative displacement of the transport means and stacking means with respect to the stack and / or the support, the stacking means being mounted so floating with respect to the stack, characterized in that the means of stack are movable towards and opposite the end of the pile, by pivoting around an axis close to the jogging wall of the support and are associated with return means urging them constantly towards the pile.
  • the inertia of the stacking means is reduced, which makes it possible to improve their response time and to increase the rate of routing and stacking of the flat objects.
  • the stacking means move away from the stack of letters, on the side of the end of the means of transport, which makes it possible to better accept the objects. thick, as well as particularly rigid objects.
  • the stacking means comprise an endless belt or band passing over two pulleys, one of which is driven by motor means and the other of which is movable by pivoting around the axis of the first pulley mentioned.
  • the belt which, applied to a flat object brought by the means of transport, drives it by sliding on the end of the pile, while simultaneously moving away from this end of the pile of a distance corresponding to the thickness of the flat object.
  • the part of the belt which is in contact with the end of the stack is parallel to the flat objects of this stack.
  • the motor means for driving the aforementioned pulley in rotation are controlled by means for detecting the arrival of a flat object, associated with time delay means, for the automatic starting and stopping of these motor means.
  • the stacking means comprise a drive shaft carrying a first cylindrical sleeve mounted to rotate inside a second cylindrical sleeve in contact with the latter, the coefficient of friction of the first sleeve relative to the second sleeve being much lower to that of the second sleeve on a flat object mentioned above.
  • FIG. 1 We first refer to FIG. 1 to explain the principle of constitution of a stack of flat objects of variable length on a support 10 in the form of a dihedral with two perpendicular walls 12 and 14. To simplify the description, we will assume that the walls 12 and 14 of the support are respectively horizontal and vertical, but the support can also be inclined in one direction or the other.
  • a device 16 for unstacking flat objects one face of which is perpendicular to the two walls of the support and from which is formed a stack 18 of flat objects 20 which will be called letters in the rest of the description.
  • the stacking means 22 are at the end of the stack 18 opposite the unstacking means 16 and are associated with means 24 for transporting the letters 20. These letters are therefore brought one by one by the means 24 at the height of the means stacking 22 and are stored one after the other on the support 10 to constitute the stack 18. More specifically, the letters 20 brought on the support 10 are supported on the horizontal wall 12 thereof by their edge lower side, and are brought to bear on the vertical wall 14 or jogging edge by their front vertical edge.
  • the means 16 take the letters 20 one by one to move them in the direction indicated by the arrow 26 and bring them to the entry of other means of transport, not shown.
  • the support 10 can comprise means of transporting the stack 18 towards the unstacking means 16, as indicated by the arrow 28.
  • the stacking means 22 as well as part of the transport means 24 are movable in translation parallel to the direction of formation of the stack, as indicated by the double arrow 30, their position being slaved to the position of the last letter of the stack and therefore being able to vary according to the thickness of each letter , the speed of movement of the stack towards the unstacking means 16, the rate of operation of these unstacking means, their running and their stopping.
  • Figures 2 to 4 showing in detail a device according to the invention.
  • the stacking means 22 and part of the transport means 24 are carried by the same table or plate 32 movable in the direction indicated by the double arrow 30, being guided on columns by means of ball bushings for example, and moved in one direction and in the other by reversible motor means, for example electric.
  • the stacking means 22 comprise, in this embodiment, an endless belt or band 34 passing over two pulleys 36, 38 mounted on the table 32 so that the strand of the belt 34 which extends between the pulleys on the side of the stack of letters is substantially perpendicular to the direction of formation of the stack of letters.
  • the two pulleys 36, 38 are separated from each other by a distance which is at most the length of the smallest letter to be placed in the stack.
  • the pulley 36 (fig. 3) is carried by an arm 40 pivotally mounted on the vertical axis of the pulley 38 located in the vicinity of the jogging edge 14 and which is driven by means of a belt 42 passing over a motor shaft 44, for example an output shaft of an electric motor.
  • the pivoting arm 40 is associated with a return spring 46 which constantly urges it towards the end of the stack of letters, and with a position detector 48.
  • the jogging edge 14 comprises parallel grooves 52, which extend parallel to the direction of formation of the stack of letters 18 and into which engage ribs 54 of the corresponding vertical edge of the guide plate 50. Thanks to this arrangement, it is avoided that the front edge of a letter 20 pushed on the jogging edge does not fold along the latter, that is to say between the table 32 and the edge 14.
  • the means of transport 24 used are conveyors with endless belts or belts. More precisely, as shown in FIG. 2, they comprise a first belt 56 guided on pulleys or rollers, and a second belt 58 also guided on pulleys or rollers, the two belts 56, 58 being parallel and applied one on the other over part of their length, which defines the path of the letters between the entry 60 of the means of transport and their exit 62.
  • the belt 56 passes over two pulleys 64 carried by a fixed frame and separated from each other by a distance greater than the length of the stack of letters which it is desired to form on the support 10.
  • Other pulleys 66 also mounted on the frame define the start of the common path of the belts 56, 58.
  • the other pulleys 68 over which the first belt 56 passes are mounted on the movable table 32, two of these pulleys, designated by the reference 68a, forming the input and output pulleys of the belt 56 on the table 32 being arranged with so that the movements of the table 32 in the direction of the double arrow 30 do not cause any variation in length and tension of the belt 56.
  • the two pulleys 68a are preferably aligned with each other parallel to the direction of the double arrow 30, as well as the end pulleys 64 mounted on the fixed frame.
  • the belt 56 passes over a pulley 68b relatively close to the first pulley 36 of the stacking means 22 while the belt 58 leaving the last pulley 68 of the common path, is guided via a small pulley, towards the return pulley 72 of the table 32.
  • the distance between the last pulley 68 of the common path and the pulley 68b is less than the minimum length of a letter 20 and the orientation of the belt 56 between these two pulleys is such that each letter is brought to the support 10 with an orientation slightly inclined relative to that which it will occupy in the stack 18.
  • the device works as follows:
  • the letters 20 are transported by the means 24, from the inlet 60 to the outlet 62 while being pinched between the belts 56 and 58 on their common path shown in FIG. 2, the transport rate being for example around 10 letters per second on average.
  • Each letter 20 leaving the transport means 24 is projected in the direction indicated by the arrow in FIG. 2, towards the stacking means 22, more precisely between the latter and the last letter of the stack 18.
  • the letter 20 leaving the transport means 24 is slightly oblique with respect to the arrangement of the letters in the stack, so that its front edge slides over the last letter, until it comes into contact with the belt 34 passing over the pulleys 36, 38.
  • the arrival of the letter in this position is detected by appropriate means, for example by a photoelectric cell 84 which controls the starting of the motor drive means of the pulley 38.
  • the control circuit controls the movement of the table 32 towards the unstacking means 16.
  • the device therefore makes it possible to form a stack of variable length on the support 10, from one end of this support which is defined by the face of the unstacking means 16 on which the stack 18 is supported, the maximum length of this stack corresponding for example to 1000 letters, or else having a predetermined value, of the order of 1 meter or more.
  • the maximum stack length is reached, for example following an operation stop of the unstacking means 16, the stop of the transport means 24 and possibly that of the machine located upstream are controlled.
  • the means 22 may be housed in a box 88 provided with a suction means such as a fan and comprising a suction slot at the level of the belt 34.
  • a suction means such as a fan and comprising a suction slot at the level of the belt 34.
  • This means 76 has substantially the shape of a U lying on its side, so that the belt 56 at the outlet of the transport means 24 passes between the two lateral branches of this U which is mounted fixed in position and which is relatively rigid.
  • each letter 20 leaving the last pulley 68 of the transport means 24, and passing over the branches of the U 76 causes the belt 56 to flex inwards as shown in FIG. 7.
  • FIG. 9 an alternative embodiment of the stacking head.
  • the pulley 36 is replaced by a drive shaft 78 surrounded by a sleeve 80 which is rotationally integral with the shaft 78 and which rotates inside another sleeve 82, while being in contact with that -this.
  • the materials of these two sleeves are chosen so that the coefficient of friction of the sleeve 80 inside the sleeve 82 is much lower than the coefficient of friction of the sleeve 82 on a letter 20 conveyed by the means of transport.
  • the motor shaft 78 can therefore be driven continuously, and it is no longer necessary to use a photoelectric cell and a timing circuit to control its rotational movement.
  • the device according to the invention can operate with means of transport bringing letters or flat objects, of different formats, one after the other, either separated from each other, or in tiled formation.
  • the unstacking means make it possible, depending on their type, to remove the flat objects one after the other, either separated from each other, or in tiled formation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Pile Receivers (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Sheet Holders (AREA)
EP89400752A 1988-03-18 1989-03-17 Vorrichtung zum Stapeln von flachen Gegenständen, wie Briefe Expired - Lifetime EP0333596B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89400752T ATE85962T1 (de) 1988-03-18 1989-03-17 Vorrichtung zum stapeln von flachen gegenstaenden, wie briefe.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8803592 1988-03-18
FR8803592A FR2631947B1 (fr) 1988-03-18 1988-03-18 Dispositif de formation d'une pile d'objets plats tels que des lettres

Publications (2)

Publication Number Publication Date
EP0333596A1 true EP0333596A1 (de) 1989-09-20
EP0333596B1 EP0333596B1 (de) 1993-02-24

Family

ID=9364425

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89400752A Expired - Lifetime EP0333596B1 (de) 1988-03-18 1989-03-17 Vorrichtung zum Stapeln von flachen Gegenständen, wie Briefe

Country Status (5)

Country Link
US (1) US4940219A (de)
EP (1) EP0333596B1 (de)
AT (1) ATE85962T1 (de)
DE (1) DE68904971D1 (de)
FR (1) FR2631947B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0507662A1 (de) * 1991-04-04 1992-10-07 La Poste, Etablissement Autonome De Droit Public Vorrichtung zum Stapeln von flachen Gegenständen, wie Postbriefumschläge
WO1997006897A1 (de) * 1995-08-21 1997-02-27 Licentia Patent-Verwaltungs-Gmbh Vorrichtung zum stapeln von flachen sendungen

Families Citing this family (11)

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Publication number Priority date Publication date Assignee Title
US5324025A (en) * 1992-09-18 1994-06-28 Chadwick Charles M Physical delay buffer for paper items
US6161830A (en) * 1999-09-08 2000-12-19 Pitney Bowes Inc. Method and apparatus for stacking mixed mail
US6682067B1 (en) 2000-04-28 2004-01-27 Kfw Automation, Inc. Offset device for an on-edge stacking apparatus
US6398204B1 (en) * 2000-04-28 2002-06-04 Kfw Automation, Inc. On-edge stacking apparatus
US6877739B2 (en) * 2002-12-16 2005-04-12 Pitney Bowes Inc. Vertical stacker input method and apparatus
DE102004010102B4 (de) * 2004-02-27 2010-09-09 Mathias Bäuerle GmbH Steuerung zum automatischen Abgleich des Andruckes einer Zuführeinrichtung im Einlaufbereich von aufrechten Stapelauslagen
US7344134B1 (en) 2004-12-13 2008-03-18 Kfw Automation, Inc. Large envelope on-edge stacking conveyor
JP5149228B2 (ja) * 2009-03-27 2013-02-20 デュプロ精工株式会社 スタッカ装置
FR2961417A1 (fr) * 2010-06-17 2011-12-23 Solystic Dispositif d'empilage d'objets plats sur chant, son procede de pilotage, et machine de tri postal equipee d'au moins un tel dispositif
EP2520525B1 (de) 2011-05-03 2018-05-23 Müller Martini Holding AG Verfahren zur Herstellung von Stangen aus Druckprodukten
EP2537786B1 (de) * 2011-06-22 2018-07-18 Müller Martini Holding AG Stange und Verfahren zur Herstellung dieser Stange aus Druckprodukten

Citations (2)

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US4084809A (en) * 1975-02-11 1978-04-18 Xerox Corporation Sheet stacking apparatus
DE3237815A1 (de) * 1981-10-26 1983-05-11 Tokyo Shibaura Denki K.K., Kawasaki, Kanagawa Vorrichtung zum stapeln blattfoermiger gegenstaende

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US3051333A (en) * 1958-07-31 1962-08-28 Int Standard Electric Corp Storage apparatus for article sorting system
US3152701A (en) * 1961-01-03 1964-10-13 Telefunken Ag Transport arrangement
US3160413A (en) * 1961-01-31 1964-12-08 Time Inc Method and apparatus for supporting stacks of signatures
US3473800A (en) * 1967-07-11 1969-10-21 Int Paper Canada Vacuum conveying system
NL6807471A (de) * 1968-05-27 1969-12-01
US3729191A (en) * 1970-06-02 1973-04-24 Nippon Electric Co Open type stacking device
US3690474A (en) * 1970-07-30 1972-09-12 Licentia Gmbh Conveying device with two end positions connected by a conveyor belt and including a controllable drive connection
JPS5253105Y2 (de) * 1973-04-27 1977-12-02
US4019730A (en) * 1975-06-05 1977-04-26 Pitney-Bowes, Inc. Envelope stacking system
US4299379A (en) * 1978-02-21 1981-11-10 E-Systems, Inc. Moving carriage buffer/feeder
DE3336971C2 (de) * 1983-10-07 1995-05-11 Kluessendorf Heinrich H Gmbh Einrichtung zum Stempeln von flachen Gegenständen
US4547113A (en) * 1984-06-19 1985-10-15 The Procter & Gamble Company Continuous motion spiral stacker
SE446524B (sv) * 1985-11-13 1986-09-22 Inter Innovation Ab Anordning for uppsamling av efter varandra transporterade bladformiga objekt
SE451375B (sv) * 1986-01-20 1987-10-05 Tetra Pak Ab Anordning for matning av ark eller emnen till ett stapelmagasin
US4799663A (en) * 1986-06-26 1989-01-24 G.B.R. Ltd. Feeding mechanism

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4084809A (en) * 1975-02-11 1978-04-18 Xerox Corporation Sheet stacking apparatus
DE3237815A1 (de) * 1981-10-26 1983-05-11 Tokyo Shibaura Denki K.K., Kawasaki, Kanagawa Vorrichtung zum stapeln blattfoermiger gegenstaende

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0507662A1 (de) * 1991-04-04 1992-10-07 La Poste, Etablissement Autonome De Droit Public Vorrichtung zum Stapeln von flachen Gegenständen, wie Postbriefumschläge
FR2674837A1 (fr) * 1991-04-04 1992-10-09 Darchis Pierre Dispositif pour la formation d'une pile d'objets plats, notamment d'enveloppes de courrier.
US5224697A (en) * 1991-04-04 1993-07-06 La Poste Device for the formation of a stack of flat articles, especially mail envelopes
WO1997006897A1 (de) * 1995-08-21 1997-02-27 Licentia Patent-Verwaltungs-Gmbh Vorrichtung zum stapeln von flachen sendungen

Also Published As

Publication number Publication date
EP0333596B1 (de) 1993-02-24
DE68904971D1 (de) 1993-04-01
FR2631947B1 (fr) 1991-04-19
ATE85962T1 (de) 1993-03-15
US4940219A (en) 1990-07-10
FR2631947A1 (fr) 1989-12-01

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