EP1699719A1 - Procede et ensemble pour detecter le chevauchement d'envois plats - Google Patents

Procede et ensemble pour detecter le chevauchement d'envois plats

Info

Publication number
EP1699719A1
EP1699719A1 EP04798109A EP04798109A EP1699719A1 EP 1699719 A1 EP1699719 A1 EP 1699719A1 EP 04798109 A EP04798109 A EP 04798109A EP 04798109 A EP04798109 A EP 04798109A EP 1699719 A1 EP1699719 A1 EP 1699719A1
Authority
EP
European Patent Office
Prior art keywords
speed
transport
sensors
measured
stage
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
EP04798109A
Other languages
German (de)
English (en)
Other versions
EP1699719B1 (fr
Inventor
Oliver Kutzer
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
Publication of EP1699719A1 publication Critical patent/EP1699719A1/fr
Application granted granted Critical
Publication of EP1699719B1 publication Critical patent/EP1699719B1/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C3/00—Sorting according to destination
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/30—Orientation, displacement, position of the handled material
    • B65H2301/32—Orientation of handled material
    • B65H2301/321—Standing on edge
    • 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
    • B65H2511/52—Defective operating conditions
    • B65H2511/524—Multiple articles, e.g. double feed
    • 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
    • B65H2513/00—Dynamic entities; Timing aspects
    • B65H2513/10—Speed
    • B65H2513/11—Speed angular
    • 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
    • B65H2553/51—Encoders, e.g. linear
    • 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 and an arrangement for recognizing overlapped flat mail items in a transport path for mail items transported upright in succession.
  • a problem that occurs with separating devices consists in so-called double deduction errors which result from the fact that in addition to the consignment to be deducted from a stack, another consignment is also deducted.
  • the undetected double deductions are of particular importance, since they increase the misdistribution rate due to reading errors of the automatic address recognition, but can also result in a consignment jam with consignment destruction.
  • movable mail items are temporarily deflected perpendicular to the conveyor.
  • the presence of overlapped mail items is then detected by evaluating the quick-response behavior of the mail items (EP 0 650 911 B1). Since there may be a different offset of the overlapped mail items, the deflection must take place both on the front side of the mail item and on the back side of the mail item, which results in increased effort.
  • Another disadvantage is the mechanical stress on the mail items during the deflection.
  • Another deficiency of this solution is that the offset of the rear edges must not be less than a minimum value (approx. 10 mm).
  • DE 12 10 601 A describes a method and an arrangement for recognizing mail overlaps, with edges on both sides of the transport path being determined by means of measuring devices for edge detection.
  • US Pat. No. 5,505,440 A shows a method and an arrangement for recognizing consignment overlaps, the total length of a consignment or overlapping consignment being measured, subsequently overlapping consignments being shifted towards one another and the total length being then measured again.
  • a solution has also become known (DE 101 42 331 Cl), in which after the detection of edges on both sides of the transport path and the determination of the distances of the detected edges from the leading front edge measured in each case with a light barrier on the long sides of the mail items, is affected at different transport speeds without falling below the minimum gaps. Then the distances of the edges from the leading front edge are measured again. If the distance changes, a double deduction is detected.
  • an overlap is determined by means of edge detection. From WO 01/89 724 AI and JP 09-020 438 AA it is known to determine overlapped mail items within a transport stage by means of a speed sensor arranged on one side of the transport path. Transport paths are known from DE 102 12 024 A1, in which the nominal speed of successive transport stages increases in the transport direction.
  • the object of the invention is to detect overlapped narrow mail items in a transport path for mail items transported upright one after the other as early and reliably as possible.
  • At least two transport stages are arranged one after the other in the transport path, the nominal speed of the subsequent transport stage in the transport direction being higher than the nominal speed of the upstream transport stage.
  • the speed of the transported items is measured by scanning in front of a subsequent transport stage up to a maximum distance smaller than the shortest agreed length of the item by means of two sensors arranged on both sides of the transport path, and the measurement results are evaluated if a sensor measures a speed that is different from the nominal speed of the subsequent transport level only deviates by a specified low value.
  • a sensor measures a speed that is different from the nominal speed of the subsequent transport level only deviates by a specified low value.
  • an overlap is detected when the speeds of the two sensors measured at the same time are different, the lower measured speed deviating from the higher speed by a fixed value.
  • the overlapped mail items are determined very early and reliably by measuring the mail item speed.
  • the evaluation of the measurement results only begins after a defined delay time after the speed jump measured by a sensor to a speed that deviates from the nominal speed of the subsequent transport stage only by a specified small value.
  • FIG. 1 shows a schematic plan view of two transport stages and two speed sensors arranged between them
  • FIG. 2 shows a schematic plan view of two transport stages, two larger pressure rollers being located at the beginning of the second transport stage
  • each sensor 3, 4 is realized here by means of a roller running on the surface of the mail item and driving a tachometer generator. The output signal of the tachometer generator corresponding to the speed is transmitted as a measurement signal to an evaluation device.
  • the speeds of the sensors 3, 4 are monitored. If the difference between the highest measured speed value and the speed of the subsequent transport stage 2 is smaller than a defined small limit value, it is assumed that the shipment 3 is transported by the transport stage 2 with almost no slip. From this point in time, the two sensors 3, 4 are monitored. If the difference between the lowest measured speed and the speed of the subsequent transport stage 2 is greater than a defined limit value, an overlap is detected which pulls apart at the transition between the two transport stages 1, 2 due to the speed differences. Monitoring remains active until the last trailing edge has left sensors 3, 4. 2 shows the transition area between the transport stage 2 and the transfer rollers 7, 8 of the subsequent transport route (both form a third transport stage).
  • the flat mail items 5, 6 are held in a slip-free manner in the transport route designed as a shroud system and are transported on at a higher speed than transport level 2. Since the relatively large takeover rollers 7, 8 for the secure takeover of the mail items 5, 6 are arranged as close as possible to the transport stage 2, there is not enough space to provide the sensors 9, 10 in between. For this reason, the sensors 9, 10 are located in the area of the transport stage 2 at a distance d smaller than the shortest mail items 5, 6 to be processed from the nip points of the transfer rollers 7, 8.
  • a consignment 5 enters the nip point of the takeover rollers 7, 8, e.g. From this point in time, sensors 9, 10 are monitored using a light barrier. If the difference between the lowest measured speed and the transport speed of the takeover rollers 7,8 is greater than a defined limit value, then an overlap is also detected.
  • the monitoring remains active until the rear edge has left the sensors 9, 10.
  • the overlap monitoring can be briefly delayed with the aid of a timer.

Abstract

Au moins deux niveaux de transport (1, 2) sont disposés l'un derrière l'autre dans une trajectoire de transport, la vitesse nominale du niveau de transport (2) postérieur dans le sens du transport dépassant la vitesse nominale du niveau de transport (1 ou 2) antérieur. La vitesse des envois (5, 6) transportés est mesurée par balayage en amont du niveau de transport (2) postérieur jusqu'à un écart maximum inférieur à la plus petite longueur d'envoi déterminée, au moyen de deux capteurs (3, 4) montés des deux côtés de la trajectoire de transport. Ces mesures sont évaluées lorsqu'un capteur (3, 4) détecte une vitesse qui diffère seulement d'une faible valeur prédéfinie de la vitesse nominale du niveau de transport (2) postérieur. Lors de cette évaluation, un éventuel chevauchement est détecté lorsque les vitesses mesurées simultanément par les deux capteurs (3, 4) sont différentes et que l'écart entre la plus petite et la plus grande des vitesses correspond à une valeur définie.
EP04798109A 2003-12-30 2004-11-27 Procede et ensemble pour detecter le chevauchement d'envois plats Expired - Fee Related EP1699719B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10361720A DE10361720B3 (de) 2003-12-30 2003-12-30 Verfahren und Anordnung zum Erkennen von überlappten flachen Sendungen
PCT/EP2004/013496 WO2005066052A1 (fr) 2003-12-30 2004-11-27 Procede et ensemble pour detecter le chevauchement d'envois plats

Publications (2)

Publication Number Publication Date
EP1699719A1 true EP1699719A1 (fr) 2006-09-13
EP1699719B1 EP1699719B1 (fr) 2008-04-23

Family

ID=34485606

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04798109A Expired - Fee Related EP1699719B1 (fr) 2003-12-30 2004-11-27 Procede et ensemble pour detecter le chevauchement d'envois plats

Country Status (7)

Country Link
US (1) US7347417B2 (fr)
EP (1) EP1699719B1 (fr)
JP (1) JP2007516911A (fr)
KR (1) KR20060127956A (fr)
CN (1) CN1902110A (fr)
DE (2) DE10361720B3 (fr)
WO (1) WO2005066052A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4217736B2 (ja) * 2006-11-09 2009-02-04 シャープ株式会社 シート搬送装置、前記シート搬送装置を備えてなる自動原稿送り装置、および、前記シート搬送装置を備えてなる画像形成装置
JP4306732B2 (ja) * 2007-01-26 2009-08-05 シャープ株式会社 シート搬送装置、それを備えてなる自動原稿送り装置および画像形成装置
JP5845347B2 (ja) * 2012-06-22 2016-01-20 下西技研工業株式会社 重送検知装置及びシート状物取り扱い装置
CN105564884B (zh) * 2016-02-01 2018-02-06 中国重型机械研究院股份公司 一种铝型材堆垛隔条自动传送方法
CN107301720B (zh) * 2017-07-13 2020-01-14 深圳怡化电脑股份有限公司 介质处理装置及自动交易装置

Family Cites Families (13)

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Publication number Priority date Publication date Assignee Title
DE1210601B (de) * 1960-08-15 1966-02-10 Standard Elektrik Lorenz Ag Lichtelektrische Kontrolleinrichtung zum Erkennen von Doppelabzuegen
US4733226A (en) 1986-01-07 1988-03-22 Nec Corporation Overlapped-transfer detecting apparatus for mail article
JPH0674102B2 (ja) 1987-12-26 1994-09-21 富士通機電株式会社 ２重送り検知装置
JPH0710322A (ja) * 1993-06-25 1995-01-13 Toshiba Corp 紙葉類搬送装置
DE4337004A1 (de) 1993-10-29 1995-05-04 Licentia Gmbh Vorrichtung und Verfahren zum Erkennen von Überlappungen von biegbaren flachen Sendungen
JPH0920438A (ja) * 1995-07-06 1997-01-21 Nec Corp 紙葉類の重ね送り検知装置
DE19625044A1 (de) * 1996-06-22 1998-01-02 Siemens Ag Verfahren zum Erkennen von Überlappungen von flachen Sendungen
JPH11334938A (ja) 1998-05-20 1999-12-07 Dainippon Screen Mfg Co Ltd シートの２枚送り検出装置
NL1015266C2 (nl) * 2000-05-23 2001-12-14 Koninkl Kpn Nv Inrichting en werkwijze voor het detecteren van overlappende voorwerpen.
DE10142331C1 (de) * 2001-08-30 2003-03-27 Siemens Dematic Ag Verfahren und Anordnung zum Erkennen von Überlappungen
DE10212024A1 (de) 2002-03-19 2003-10-16 Interroll Holding Ag S Antonin Vorrichtung und Verfahren zum Vereinzeln von flächigen Stückgütern
JP4186666B2 (ja) * 2003-03-24 2008-11-26 富士ゼロックス株式会社 シートの重送状態判定装置およびシート搬送装置
JP4364012B2 (ja) * 2003-05-14 2009-11-11 株式会社東芝 紙葉類の重送検知装置、および重送検知方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2005066052A1 *

Also Published As

Publication number Publication date
DE10361720B3 (de) 2005-05-25
US7347417B2 (en) 2008-03-25
CN1902110A (zh) 2007-01-24
US20070164507A1 (en) 2007-07-19
JP2007516911A (ja) 2007-06-28
DE502004006960D1 (de) 2008-06-05
KR20060127956A (ko) 2006-12-13
EP1699719B1 (fr) 2008-04-23
WO2005066052A1 (fr) 2005-07-21

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