US20040195760A1 - Method and device for identifying double feeds - Google Patents

Method and device for identifying double feeds Download PDF

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Publication number
US20040195760A1
US20040195760A1 US10/488,330 US48833004A US2004195760A1 US 20040195760 A1 US20040195760 A1 US 20040195760A1 US 48833004 A US48833004 A US 48833004A US 2004195760 A1 US2004195760 A1 US 2004195760A1
Authority
US
United States
Prior art keywords
transporting
mail
item
edges
items
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.)
Abandoned
Application number
US10/488,330
Other languages
English (en)
Inventor
Armin Zimmermann
Johnny Zimmermann
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
Siemens 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 Siemens AG filed Critical Siemens AG
Assigned to SIEMENS AKTIENGESELLSCAHFT reassignment SIEMENS AKTIENGESELLSCAHFT ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ZIMMERMANN, JOHNNY, ZIMMERMANN, ARMIN
Publication of US20040195760A1 publication Critical patent/US20040195760A1/en
Abandoned 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
    • B65H7/00—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles
    • B65H7/02—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors
    • B65H7/06—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors responsive to presence of faulty articles or incorrect separation or feed
    • B65H7/12—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors responsive to presence of faulty articles or incorrect separation or feed responsive to double feed or separation
    • B65H7/125—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors responsive to presence of faulty articles or incorrect separation or feed responsive to double feed or separation sensing the double feed or separation without contacting the 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
    • 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
    • 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
    • B65H2301/44—Moving, forwarding, guiding material
    • B65H2301/443—Moving, forwarding, guiding material by acting on surface of handled material
    • B65H2301/4431—Moving, forwarding, guiding material by acting on surface of handled material by means with operating surfaces contacting opposite faces of material
    • B65H2301/44316—Moving, forwarding, guiding material by acting on surface of handled material by means with operating surfaces contacting opposite faces of material between 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
    • B65H2301/40—Type of handling process
    • B65H2301/44—Moving, forwarding, guiding material
    • B65H2301/445—Moving, forwarding, guiding material stream of articles separated from each other
    • B65H2301/4451—Moving, forwarding, guiding material stream of articles separated from each other forming a stream or streams of separated articles
    • B65H2301/44514—Separating superposed 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
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/44—Moving, forwarding, guiding material
    • B65H2301/447—Moving, forwarding, guiding material transferring material between transport devices
    • B65H2301/4474—Pair of cooperating moving elements as rollers, belts forming nip into which material is transported
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/20—Belts
    • B65H2404/26—Particular arrangement of belt, or belts
    • B65H2404/269—Particular arrangement of belt, or belts other arrangements
    • B65H2404/2691—Arrangement of successive belts forming a transport path
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/50—Occurence
    • B65H2511/51—Presence
    • B65H2511/514—Particular portion of element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2513/00—Dynamic entities; Timing aspects
    • B65H2513/10—Speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2553/00—Sensing or detecting means
    • B65H2553/40—Sensing or detecting means using optical, e.g. photographic, elements
    • B65H2553/41—Photoelectric detectors
    • B65H2553/412—Photoelectric detectors in barrier arrangements, i.e. emitter facing a receptor element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2553/00—Sensing or detecting means
    • B65H2553/40—Sensing or detecting means using optical, e.g. photographic, elements
    • B65H2553/41—Photoelectric detectors
    • B65H2553/414—Photoelectric detectors involving receptor receiving light reflected by a reflecting surface and emitted by a separate emitter
    • 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
    • B65H2701/13—Parts concerned of the handled material
    • B65H2701/131—Edges
    • 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 method of, and to an arrangement for, detecting double withdrawals according to the preambles of claims 1 and 6 .
  • the object of the invention is thus to provide a method and an arrangement which are intended for detecting overlaps of items of mail and with the aid of which the overlaps can be detected irrespective of the size of the items of mail and their position in relation to one another.
  • the overlapped items of mail are displaced such that the necessary gap dimensions between items of mail do not fall below a minimum value.
  • one of the two transporting speeds is the nominal speed of the sandwich belt system, and the coefficient of friction of the transporting means driven at the nominal speed is greater than the coefficient of friction of the transporting means driven at the speed which differs therefrom.
  • the transporting segment for item displacement on each item side, has a circulating sandwich belt which is separate from the rest of the sandwich belt system, is driven in a controlled manner and has a dedicated drive.
  • the length of the displacing sandwich belt region and its spacings from the feeding and discharging sandwich belts of the sandwich belt system are of such a magnitude that, and the accelerating and braking operations are started and ended such that, in the case of overlap, the action-specific length corresponds to the length of the shortest item of mail and the items of mail in the length range which is to be processed are not gripped in the feeding and discharging sandwich belts during their displacement.
  • control device it is advantageous here for the control device to be configured such that an accelerating phase is only started when the first detected edge following the front edge has just left the final clamping location of the transporting segment for item displacement, as seen in the transporting direction, and that a braking phase is ended before the rear edge of the shortest item of mail which is to be displaced has reached the first clamping location, as seen in the transporting direction.
  • FIG. 1 shows a plan view of a sandwich belt system with a transporting segment for item displacement
  • FIGS. 2 and 3 show an illustration of different overlap variants with an indication as to which item of mail is displaced.
  • the items of mail are normally conveyed individually one after the other, by a feeding part 3 of the sandwich belt system, to the transporting segment for item displacement and transported away by a discharging part 4 .
  • the deflecting rollers of the sandwich belts are offset in relation to one another such that the items of mail are guided, virtually without interruption, at least on one side and the final clamping points K 1 , K 2 and K 3 , K 4 are as far as possible from one another in order to provide the necessary distances for accelerating or braking purposes without the items of mail still being clamped in the feeding part 3 of the sandwich belt system.
  • a light barrier Li Located in the rear segment of the feeding part is a light barrier Li and, on both sides of the transporting path, a measuring means La 1 , La 2 for detecting edges.
  • measuring means La 3 , La 4 for detecting edges are likewise arranged on both sides of the transporting path.
  • the transporting segment for item displacement comprises two endless sandwich belts which are driven separately via deflecting rollers 1 , 2 and by means of which the items of mail are clamped in as they are transported. Since all the deflecting rollers are offset in relation to one another, they may be mounted in a rigid manner, even in the case of items of mail of different thicknesses, without jamming taking place.
  • the beginning and end of the displacement segment are defined by the clamping locations K 2 and K 3 , i.e. by first clamping at the rear, incoming deflecting roller 2 and final clamping at the front, outgoing deflecting roller.
  • the nominal transporting speed of the sandwich belt system in the feeding and discharging parts has the value V 0 , the sandwich belts with the deflecting roller 1 (in the side view the rear sandwich belt) runs at the speed V 1 , and the sandwich belt with the deflecting roller 2 runs at the speed V 2 .
  • the light barrier Li which is spaced apart from the first clamping point by a distance which is greater than the length of the longest item of mail, detects the leading front edge (the front edge of the leading overlapped item of mail).
  • the measuring means La 1 , La 2 for edge detection.
  • FIGS. 2 and 3 illustrate examples of displacement, depending on the size and mutual positions, of overlapped items of mail, the level of the differential speed in relation to the nominal speed, for the sake of clarity, not being stated.
  • a) shows the special case where two items of mail of the same length are overlapped without any lateral offset.
  • V 0 nominal speed
  • V 2 ⁇ V+V 0
  • the forward displacement takes place provided that the gap in relation to the preceding item of mail, despite the displacement, does not fall below the minimum value.
  • the differential speed ⁇ V is reduced.
  • the items of mail are very long and at the limit of the permitted length agreed.
  • the light barrier Li determines an item length above the permitted length, which can only be produced by an overlap. For this reason, displacement of the items of mail in relation to one another is not necessary and the two sandwich belts of the transporting segment for item displacement are driven at the nominal speed V 0 .
  • the item of mail was displaced forward first of all since the length of the small item of mail is not in fact known.
  • FIG. 3 gives examples in which the rear items of mail, as seen by the observer, are smaller than the front items of mail and are partially or wholly covered by the latter.
  • a) gives a special case corresponding to the example b) of FIG. 2, in which, on account of the maximum length being exceeded, an overlap is identified, with the result that displacement is not necessary.
  • the speed V 1 V 0 is maintained and the speed of the front sandwich belt V 2 is increased or decreased depending on the size of the items of mail, their position in relation to one another size of the gaps.
  • the speed V 2 is reduced or increased to V 0 prior to the transfer of the item or items of mail to the discharging part 4 of the sandwich belt system.
  • the edges are once again detected on both sides by the measuring means La 3 , La 4 for edge detection, as are the spacings of these edges in relation to the formally leading front edge. If there is a deviation from the previous measurement, or if an additional edge is registered, then an overlap is present. In this example, the position of the originally leading front edge is determined indirectly via the transporting speed and the section cycle time.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Controlling Sheets Or Webs (AREA)
  • Sorting Of Articles (AREA)
US10/488,330 2001-08-30 2002-08-13 Method and device for identifying double feeds Abandoned US20040195760A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10142331.4 2001-08-30
DE10142331A DE10142331C1 (de) 2001-08-30 2001-08-30 Verfahren und Anordnung zum Erkennen von Überlappungen
PCT/DE2002/002961 WO2003018449A1 (fr) 2001-08-30 2002-08-13 Procede et dispositif de detection d'un enlevement en double

Publications (1)

Publication Number Publication Date
US20040195760A1 true US20040195760A1 (en) 2004-10-07

Family

ID=7696996

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/488,330 Abandoned US20040195760A1 (en) 2001-08-30 2002-08-13 Method and device for identifying double feeds

Country Status (4)

Country Link
US (1) US20040195760A1 (fr)
EP (1) EP1421022B1 (fr)
DE (2) DE10142331C1 (fr)
WO (1) WO2003018449A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050228535A1 (en) * 2004-04-06 2005-10-13 Roland Simonis Apparatus, method and program product for detecting article multifeed
US20070164507A1 (en) * 2003-12-30 2007-07-19 Siemens Aktiengesellschaft Method and arrangement for detecting overlapping flat mailpieces
US20080223769A1 (en) * 2007-03-15 2008-09-18 Siemens Aktiengesellschaft Method of singulating articles in a transport system
US20090087014A1 (en) * 2007-10-01 2009-04-02 Lockheed Martin Corporation Skew/doublefeed detection in scanned images
US20110048892A1 (en) * 2009-08-27 2011-03-03 Siemens Aktiengesellschaft Apparatus and method for separating flat objects by use of two separators and a length detector
US20110048895A1 (en) * 2009-08-27 2011-03-03 Siemens Aktiengesellschaft Apparatus for separating flat objects by way of two laterally offset separators
US20110282487A1 (en) * 2010-05-14 2011-11-17 Pfu Limited Multifeed processing apparatus, multifeed processing method, and multifeed processing program
JP2014099090A (ja) * 2012-11-15 2014-05-29 Hitachi Omron Terminal Solutions Corp 紙葉類搬送装置、及び紙葉類搬送方法
EP3426582A4 (fr) * 2016-04-28 2019-05-08 Tritek Technologies, Inc. Système et procédé de traitement de courrier ayant une vitesse de traitement accrue

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4256251B2 (ja) * 2003-12-17 2009-04-22 株式会社東芝 紙葉類方向反転装置、および紙葉類押印装置
JP4469671B2 (ja) 2004-07-09 2010-05-26 株式会社東芝 紙葉類取り出し装置
DE102004037422B3 (de) * 2004-07-30 2006-03-09 Siemens Ag Vereinzelungsstrecke für überlappte flache Sendungen in stehender Position
DE102011004091A1 (de) 2011-02-14 2012-08-16 Siemens Aktiengesellschaft Verfahren und Vorrichtung zum Sortieren von flachen Gegenständen mit Lückenver derung

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US3937453A (en) * 1974-08-02 1976-02-10 Docutel Corporation Single document transport
US5211387A (en) * 1989-03-31 1993-05-18 De La Rue Systems Limited Method and apparatus for feeding articles
US5386984A (en) * 1993-04-09 1995-02-07 Finmeccanica S.P.A. Separating device
US5505440A (en) * 1993-06-25 1996-04-09 Kabushiki Kaisha Toshiba Apparatus for transporting card-like articles
US5984303A (en) * 1997-05-23 1999-11-16 Hitachi, Ltd. Overlap detection apparatus and method
US6443448B1 (en) * 1997-12-02 2002-09-03 Siemens Aktiengesellschaft Speed changing device
US6623001B2 (en) * 2000-06-20 2003-09-23 Giesecke & Devrient Gmbh Sheet stacking apparatus and method for controlling the feed of sheet material into a stacking wheel

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JPS58167338A (ja) * 1982-03-24 1983-10-03 Nec Corp 紙葉類の２通送り検知装置
JPH07115771B2 (ja) * 1989-02-01 1995-12-13 富士通株式会社 紙葉類複数枚検出機構
DE4337004A1 (de) * 1993-10-29 1995-05-04 Licentia Gmbh Vorrichtung und Verfahren zum Erkennen von Überlappungen von biegbaren flachen Sendungen
US5659396A (en) * 1995-06-07 1997-08-19 Electrocom Automation L.P. Dichotomous scan system for detection of edges of objects and overlapped objects having relatively uniform surfaces
DE19625044A1 (de) * 1996-06-22 1998-01-02 Siemens Ag Verfahren zum Erkennen von Überlappungen von flachen Sendungen
NL1015266C2 (nl) * 2000-05-23 2001-12-14 Koninkl Kpn Nv Inrichting en werkwijze voor het detecteren van overlappende voorwerpen.

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3937453A (en) * 1974-08-02 1976-02-10 Docutel Corporation Single document transport
US5211387A (en) * 1989-03-31 1993-05-18 De La Rue Systems Limited Method and apparatus for feeding articles
US5386984A (en) * 1993-04-09 1995-02-07 Finmeccanica S.P.A. Separating device
US5505440A (en) * 1993-06-25 1996-04-09 Kabushiki Kaisha Toshiba Apparatus for transporting card-like articles
US5984303A (en) * 1997-05-23 1999-11-16 Hitachi, Ltd. Overlap detection apparatus and method
US6443448B1 (en) * 1997-12-02 2002-09-03 Siemens Aktiengesellschaft Speed changing device
US6623001B2 (en) * 2000-06-20 2003-09-23 Giesecke & Devrient Gmbh Sheet stacking apparatus and method for controlling the feed of sheet material into a stacking wheel

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7347417B2 (en) 2003-12-30 2008-03-25 Siemens Aktiengesellschaft Method and arrangement for detecting overlapping flat mailpieces
US20070164507A1 (en) * 2003-12-30 2007-07-19 Siemens Aktiengesellschaft Method and arrangement for detecting overlapping flat mailpieces
US8066280B2 (en) 2004-04-06 2011-11-29 Eastman Kodak Company Apparatus and method for detecting article multifeed in a predefined region of a flat article
US20050228535A1 (en) * 2004-04-06 2005-10-13 Roland Simonis Apparatus, method and program product for detecting article multifeed
US7654521B2 (en) * 2004-04-06 2010-02-02 Eastman Kodak Company Apparatus, method and program product for detecting article multifeed overlap
US20100091344A1 (en) * 2004-04-06 2010-04-15 Roland Simonis Apparatus, method and program product for detecting article multifeed
US8272639B2 (en) 2004-04-06 2012-09-25 Eastman Kodak Company Apparatus and method for detecting article multifeed in a predefined region of a flat article
US20080223769A1 (en) * 2007-03-15 2008-09-18 Siemens Aktiengesellschaft Method of singulating articles in a transport system
US20090087014A1 (en) * 2007-10-01 2009-04-02 Lockheed Martin Corporation Skew/doublefeed detection in scanned images
US8113337B2 (en) 2009-08-27 2012-02-14 Siemens Aktiengesellschaft Apparatus and method for separating flat objects by use of two separators and a length detector
US20110048895A1 (en) * 2009-08-27 2011-03-03 Siemens Aktiengesellschaft Apparatus for separating flat objects by way of two laterally offset separators
US20110048892A1 (en) * 2009-08-27 2011-03-03 Siemens Aktiengesellschaft Apparatus and method for separating flat objects by use of two separators and a length detector
US20110282487A1 (en) * 2010-05-14 2011-11-17 Pfu Limited Multifeed processing apparatus, multifeed processing method, and multifeed processing program
US8567776B2 (en) * 2010-05-14 2013-10-29 Pfu Limited Multifeed processing apparatus with measuring unit for multifeed detection pattern
US8678383B2 (en) 2010-05-14 2014-03-25 Pfu Limited Multifeed processing apparatus with measuring unit for multifeed detection pattern
JP2014099090A (ja) * 2012-11-15 2014-05-29 Hitachi Omron Terminal Solutions Corp 紙葉類搬送装置、及び紙葉類搬送方法
EP3426582A4 (fr) * 2016-04-28 2019-05-08 Tritek Technologies, Inc. Système et procédé de traitement de courrier ayant une vitesse de traitement accrue
US10875729B2 (en) 2016-04-28 2020-12-29 Tritek Technologies, Inc. Mail processing system and method with increased processing speed
US11235940B2 (en) 2016-04-28 2022-02-01 Tritek Technologies, Inc. Mail processing system and method with increased processing speed
US11584601B2 (en) 2016-04-28 2023-02-21 Tritek Technologies, Inc. Mail processing system with increased first and second pass sorting speed
US11935318B2 (en) 2016-04-28 2024-03-19 Tritek Technologies, Inc. Mail processing system with increased first and second pass sorting speed

Also Published As

Publication number Publication date
WO2003018449A1 (fr) 2003-03-06
EP1421022A1 (fr) 2004-05-26
DE10142331C1 (de) 2003-03-27
DE50202136D1 (de) 2005-03-03
EP1421022B1 (fr) 2005-01-26

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Legal Events

Date Code Title Description
AS Assignment

Owner name: SIEMENS AKTIENGESELLSCAHFT, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ZIMMERMANN, ARMIN;ZIMMERMANN, JOHNNY;REEL/FRAME:015445/0851;SIGNING DATES FROM 20040205 TO 20040209

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION