EP0933318A1 - Dispositif de séparation d'objects plats transportés d'une pile - Google Patents

Dispositif de séparation d'objects plats transportés d'une pile Download PDF

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Publication number
EP0933318A1
EP0933318A1 EP98810059A EP98810059A EP0933318A1 EP 0933318 A1 EP0933318 A1 EP 0933318A1 EP 98810059 A EP98810059 A EP 98810059A EP 98810059 A EP98810059 A EP 98810059A EP 0933318 A1 EP0933318 A1 EP 0933318A1
Authority
EP
European Patent Office
Prior art keywords
conveyor
vacuum
guide
stack
retaining member
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.)
Ceased
Application number
EP98810059A
Other languages
German (de)
English (en)
Inventor
Jean-Claude Oppliger
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.)
Siemens AG
Original Assignee
Grapha Holding AG
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 Grapha Holding AG filed Critical Grapha Holding AG
Priority to EP98810059A priority Critical patent/EP0933318A1/fr
Priority to AU12155/99A priority patent/AU1215599A/en
Priority to JP1744399A priority patent/JPH11278698A/ja
Publication of EP0933318A1 publication Critical patent/EP0933318A1/fr
Ceased 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
    • 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
    • B65H2406/00—Means using fluid
    • B65H2406/30—Suction means

Definitions

  • the invention relates to a device for separating a stack of flat objects brought together, like envelopes, Cards, mailers, bags, packages and / or Printed matter, with one that is transverse to the conveying direction (Z) transporting objects standing one behind the other from a endless rotating traction device formed conveyor and a withdrawal device assigned to the conveying device, the opposite of the conveyor end of the conveyor one of the flat side of the foremost object of the Stack facing deduction section at right angles to the conveying direction the conveyor driven, from a along of the conveyor path at the back with a vacuum chamber connected and penetrated by at least one suction opening Conveyor belt formed conveyor, which one to the discharge section downstream, through a baffle with the conveyor organ forming a guide gap, adjustable Restraining member, which is at least one through the guide wall into the guide gap, with a vacuum source has connected opening
  • the DE - provides a facility of the type mentioned at the beginning - C2 - 26 50 438.
  • This facility that is also used for processing of flat sheets fed in a stack in terms of format size and thickness of different objects is provided, consists of a conveyor with which the objects on a conveyor with the flat side ahead, about standing vertically as a rotating suction drum Trigger device are fed to the objects at the flat side sucked and attached to one on the conveyor lying, subsequent same suction drum transported.
  • this other suction drum is one Restraint device assigned to the conveyor track each increasingly narrowing, wedge-shaped, can be acted upon by vacuum Has run-up surface on which surplus objects to get stopped.
  • a further suction roller with opposing retaining device is connected downstream of the conveyor track. Downstream of the suction drums are light sensor elements which deactivate the one-way clutches associated with the suction drums when the beam path is blocked and switch them on again when the beam path is restored. At the same time, the light sensor elements block the vacuum supply in the blocked state in order to enable the negative pressure to be re-applied as soon as the beam path is restored.
  • the device for preventing double deductions according to DE - A1 - 196 12 566 exists on one side of the funding path from a revolving, the flat objects by friction lanyard and has on the other side to hold back of too much removed objects a skid-shaped, wipers that can be acted upon by vacuum a guide arm opposite the plane of conveyance of the flat objects is movably mounted and by means of actuating force on it presses.
  • the wipers are attached to the flat objects passes through channels connected with a suction pump are, the vacuum generated by the suction pump adjustable and can be switched on and off.
  • the scraper Connection between guide arm and scraper through an in close to the discharge area of the scraper parallel to the trigger belt Shaped axis and the positioning force is determined by a first spring force acting on the guide arm and by an in the second engaging the scraper near the inlet area Spring force formed. Furthermore, it is also used as a connection an additional line is connected to the suction pump for the channels, the via an elastic sealing element on a plane Area at the point of application of the second spring force of the wiper is guided so that the scraper tilts during the retention of an object largely avoided can be.
  • the present invention takes this task into account and wants to create a facility that allows the described Fix disadvantages.
  • the object is achieved in that the retaining member forming an increasingly narrowing feed opening of the guide gap can be delivered against the conveying member by spring force and can be retrieved from a guide arrangement by means of controlled vacuum application of an at least partially flexible line connecting the guide gap and the vacuum source.
  • the reliability of the device according to the invention can be further improved if that's in the flexible line occurring controlled vacuum to actuate the restraining member is lower than that in the vacuum chamber.
  • a guide arrangement is advantageous, which by at least a rod connected at one end to the retaining element and a frame-fixed that can be slid longitudinally at the other end connected support is formed, whereby for keeping the position the retaining device the rod has a polygonal cross-sectional profile has, or at least two parallel rods are provided.
  • the support can be part of the line connected to the vacuum source be to the one with the opening of the baffle of the restraining member communicating, bellow-like, changeable Connects part of the line.
  • the retraction and retraction movement of the restraining member can be opposite the conveying direction of the conveying element approximately at right angles or take place at an acute infeed angle to the conveying direction, i.e. at an infeed angle of ⁇ 90 ° the feed and return movement one perpendicular to the conveying direction and one parallel Motion component, such that the parallel motion component the infeed movement directed against the conveying direction is.
  • This fastening device can be designed such that they have a line section connected to the flexible line forms, so that a simple distribution of the vacuum on the guide wall of the restraining member.
  • the restraining member is actuated by a control device, by placing the line under vacuum the baffle of the retaining element and the vacuum source the control device with a flow of the flow through Object-connected signaling device connected shut-off valve and, for example, light barriers as signal transmitters are suitable.
  • the removal device 4 is formed by a conveyor belt 6 rotating around two vertical axes, which in each case detects the first object 2 facing it from the stack 2 by means of at least one suction opening 22 passing through the conveyor belt 6, supported by a vacuum in a rear vacuum chamber 20. This vacuum chamber extends between two deflection rollers 21, 22 on which the conveyor belt 6 rotates.
  • Similar extraction devices are known and in the present case part of a conveying element 8 which is driven at right angles to the conveying direction Z of the conveying device 5.
  • One of the guide gap 10 facing, transverse to the flow of objects 3 adjustable guide wall 11 of the retaining member 9 has at its front end, respectively.
  • the inlet end of the guide gap 10 has a curvature which widens the inlet opening in the direction opposite the direction of the conveying flow and which favors the insertion of the objects 3 into the guide gap 10.
  • the trigger device 4 resp. on the trigger section 7 of the conveyor belt 6 by a this by means of suction openings 23 penetrating vacuum from the vacuum chamber arranged on the rear side of the conveyor belt 6 two adhering flat objects 3, 3 'from the stack 2 Has been recorded on the one hand by the conveyor belt 6 formed conveyor path are.
  • the opening 12 on the guide wall 11 of the retaining member 9 is exceeded, by inserting the vacuum in the line section 16, the retaining member 9, to which the object 3 which has been removed too much adheres via the opening 12, the guide gap 10 opening further, is withdrawn, so that the the suction openings 23 are conveyed to the conveyor belt 6 object 3 'alone (see FIG. 2).
  • the vacuum in line section 16 is released via a directional control valve 28, the object 3 is detached from the guide wall 11 and displaced by the counterforce of the compression springs 18 on the conveyor belt 6 and conveyed further by the latter.
  • the restraining member 9 can be actuated, for example, by a light barrier 24 connected to a controller 26, which is arranged in the end region of the conveying path on the conveying element 8, the rear or the front edge of an object 3 passing or leaving the conveying path advantageously being triggered '3' is to be used.
  • the distance between the stack 2 and retaining element 9 is selected such that even the smallest format of an object 3 'held on the retaining member 9 covers the suction opening (s) 23 in the region of the vacuum chamber 20.
  • the distance between the stack 2 and the retaining element 9 is expediently designed to be variable, for example by displacing the conveying element 8 or the retaining element 9 relative to the stack in the conveying direction of the removed objects 3.
  • the retaining member 9 on the back of the guide wall 11 an approximately at right angles to the feed and reset movement
  • Fastening device 27 for example as dense cavity or can be formed as a frame, wherein the latter a connecting line (shown in dash-dot lines) from line section 16 to the openings 12 is necessary.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Sorting Of Articles (AREA)
EP98810059A 1998-01-28 1998-01-28 Dispositif de séparation d'objects plats transportés d'une pile Ceased EP0933318A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP98810059A EP0933318A1 (fr) 1998-01-28 1998-01-28 Dispositif de séparation d'objects plats transportés d'une pile
AU12155/99A AU1215599A (en) 1998-01-28 1999-01-18 Apparatus for decollating flat articles supplied to a stack
JP1744399A JPH11278698A (ja) 1998-01-28 1999-01-26 堆積される偏平物体を個別化する装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP98810059A EP0933318A1 (fr) 1998-01-28 1998-01-28 Dispositif de séparation d'objects plats transportés d'une pile

Publications (1)

Publication Number Publication Date
EP0933318A1 true EP0933318A1 (fr) 1999-08-04

Family

ID=8235906

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98810059A Ceased EP0933318A1 (fr) 1998-01-28 1998-01-28 Dispositif de séparation d'objects plats transportés d'une pile

Country Status (3)

Country Link
EP (1) EP0933318A1 (fr)
JP (1) JPH11278698A (fr)
AU (1) AU1215599A (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10140497C1 (de) * 2001-08-17 2003-03-13 Siemens Dematic Ag Vorrichtung zum Vereinzeln flacher Sendungen
WO2005118442A1 (fr) 2004-06-02 2005-12-15 Duplo Seiko Corporation Chargeur de feuilles
WO2011063987A1 (fr) * 2009-11-30 2011-06-03 Amb Apparate + Maschinenbau Gmbh Procédé et dispositif pour séparer des éléments en forme de plaquettes adhérant l'un à l'autre

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2650438A1 (de) * 1975-12-15 1977-06-16 Pitney Bowes Unterdruckgesteuertes trenn- und zufuehrsystem fuer flaechiges material
FR2674777A1 (fr) * 1991-04-03 1992-10-09 Darchis Pierre Dispositif pour separer deux objets plats accoles, notamment des enveloppes de courrier dans une installation de tri postal.
DE19612566A1 (de) * 1996-03-29 1997-10-02 Licentia Gmbh Vorrichtung und Verfahren zum Verhindern von Doppelabzügen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2650438A1 (de) * 1975-12-15 1977-06-16 Pitney Bowes Unterdruckgesteuertes trenn- und zufuehrsystem fuer flaechiges material
FR2674777A1 (fr) * 1991-04-03 1992-10-09 Darchis Pierre Dispositif pour separer deux objets plats accoles, notamment des enveloppes de courrier dans une installation de tri postal.
DE19612566A1 (de) * 1996-03-29 1997-10-02 Licentia Gmbh Vorrichtung und Verfahren zum Verhindern von Doppelabzügen

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10140497C1 (de) * 2001-08-17 2003-03-13 Siemens Dematic Ag Vorrichtung zum Vereinzeln flacher Sendungen
WO2005118442A1 (fr) 2004-06-02 2005-12-15 Duplo Seiko Corporation Chargeur de feuilles
EP1752401A1 (fr) * 2004-06-02 2007-02-14 Duplo Seiko Corporation Chargeur de feuilles
EP1752401A4 (fr) * 2004-06-02 2007-08-01 Duplo Seiko Corp Chargeur de feuilles
US7506868B2 (en) 2004-06-02 2009-03-24 Duplo Seiko Corporation Sheet feeder
AU2005249802B2 (en) * 2004-06-02 2010-08-12 Duplo Seiko Corporation Sheet feeder
WO2011063987A1 (fr) * 2009-11-30 2011-06-03 Amb Apparate + Maschinenbau Gmbh Procédé et dispositif pour séparer des éléments en forme de plaquettes adhérant l'un à l'autre

Also Published As

Publication number Publication date
JPH11278698A (ja) 1999-10-12
AU1215599A (en) 1999-08-19

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