EP1699719B1 - Procede et ensemble pour detecter le chevauchement d'envois plats - Google Patents

Procede et ensemble pour detecter le chevauchement d'envois plats Download PDF

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Publication number
EP1699719B1
EP1699719B1 EP04798109A EP04798109A EP1699719B1 EP 1699719 B1 EP1699719 B1 EP 1699719B1 EP 04798109 A EP04798109 A EP 04798109A EP 04798109 A EP04798109 A EP 04798109A EP 1699719 B1 EP1699719 B1 EP 1699719B1
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EP
European Patent Office
Prior art keywords
speed
transport
mailpieces
sensors
measured
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.)
Expired - Fee Related
Application number
EP04798109A
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German (de)
English (en)
Other versions
EP1699719A1 (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
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Siemens AG
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Publication date
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Publication of EP1699719A1 publication Critical patent/EP1699719A1/fr
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Publication of EP1699719B1 publication Critical patent/EP1699719B1/fr
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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
    • 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 detecting overlapped flat items in a transport path for items transported upright in a row.
  • a problem occurring 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, a further consignment is also removed.
  • double deduction errors which result from the fact that, in addition to the consignment to be deducted from a stack, a further consignment is also removed.
  • the unrecognized double deductions are of particular importance, since they increase the incorrect distribution rate through read errors of the automatic address recognition, but can also result in a mail jam with consignment destruction.
  • the profile of the item height is measured and an overlap is signaled at a height jump ( DE 196 25 044 A1 ).
  • a method and arrangement for detecting program overlaps can be taken by measuring the total length of a program or overlapping program, then shifting overlapping programs relative to one another, and then measuring the overall length again.
  • this solution it is not possible to detect program overlaps when a large and a small program are overlapped and the small program is still in the shadow of the large program before and after being moved.
  • a solution was also known ( DE 101 42 331 C1 ), in which after detecting edges on both sides of the transport path and determining the distances of the detected edges from each measured with a light barrier leading edge on the long sides of the programs is acted on both sides with different transport speeds, without the minimum gaps are exceeded. Then the distances of the edges from the leading leading edge are measured again. With a change in distance a double trigger is detected. Again, the determination of an overlap by means of edge detection.
  • the JP 11334938 A discloses an overlap detection apparatus having two spaced rotational speed sensors.
  • the invention has for its object to recognize overlapped narrow broadcasts in a transport path for consecutively transported upright shipments as early and safe as possible.
  • At least two transport stages are arranged one behind the other in the transport path, wherein the nominal speed of each subsequent transport stage in the transport direction is higher than the rated speed of the upstream transport stage.
  • the speed of the transported programs is measured by sampling before a subsequent transport stage up to a maximum distance smaller than the shortest agreed transmission length by means of two sensors arranged on both sides of the transport path and evaluation of the measurement results, when a sensor measures a speed which is higher than the nominal speed of the sensor subsequent transport stage deviates only by a fixed low value.
  • an overlap detection occurs when the simultaneously measured velocities of the two sensors are different, the smaller measured velocity deviating from the greater velocity by a set value.
  • the overlapped transmissions are determined very early and reliably by measuring the transmission speed.
  • the evaluation of the measurement results begins only after a fixed delay time after the speed jump measured by a sensor to a speed deviating from the nominal speed of the subsequent transport stage only by a predetermined low value.
  • it is the transport path of a separating device in which the flat items 5.6 are separated from a stack in several transport stages 1,2.
  • an acceleration takes place to a higher speed value.
  • the speed of the upstream Transport level 1 reduced. If there is an overlap (double take-off), consignments 5.6 offset from one another can thereby be shifted relative to one another.
  • two transport stages 1, 2 are provided for acceleration, followed by a transport line with a higher nominal speed, which has two take-up rollers 7, 8 at its beginning. It is necessary to monitor if and how long overlaps exist.
  • FIG. 1 For this purpose are according to FIG. 1 in which the two transport stages 1, 2 of the singling device are shown, two sensors 3 4 for measuring the speed of the shipments are arranged between both transport stages 1, 2 on both sides of the transport path. To recognize are also two partially. overlapped broadcasts 5.6, with the front 5 is already in the range of action of the upstream transport stage 2.
  • Each sensor 3, 4 is realized here by means of a roller running on the conveyor surface and driving a tachogenerator. The output signal of the tachogenerator corresponding to the rotational speed is transmitted as a measuring signal to an evaluation device.
  • the two sensors 3,4 are monitored. If the difference between the smallest 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.
  • the monitoring remains active until the last trailing edge has left the sensors 3,4.
  • FIG. 2 is the transition region between the transport stage 2 and the take-over rollers 7.8 of the subsequent transport route (both forms a third transport stage), shown.
  • the take-over rollers 7, 8 the flat shipments 5, 6 are gripped without slippage in the transport path designed as a shroud system and are transported further with an increased speed relative to the transport step 2. Since the relatively large take-over rollers 7, 8 are arranged so that they can be safely taken over by the shipments 5, 6 close to the transport stage 2, there is not enough space to provide the sensors 9, 10 therebetween. Therefore, the sensors are 9,10 in the transport stage 2 at a distance d less than the shortest to be processed shipments 5.6 of the terminal points of the take-over rollers 7.8.
  • the sensors 9,10 are monitored from this point on. If the difference between the smallest measured speed and the transport speed of the take-up rollers 7, 8 is greater than a defined limit value, then an overlap is also detected.
  • the monitoring remains active until the trailing edge has left the sensors 9,10.
  • the overlap monitoring can be delayed for a short time 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.

Claims (5)

  1. Procédé pour reconnaître des envois plats en chevauchement dans un chemin de transport pour des envois transportés à la verticale les uns derrière les autres, comportant les étapes suivantes :
    - placer au moins deux étages de transport (1, 2 ou 2, 7, 8) l'un derrière l'autre dans le chemin de transport, la vitesse nominale du étage de transport (2 ou 7, 8) qui suit respectivement en direction de transport étant plus grande que la vitesse nominale du étage de transport (1 ou 2) en amont,
    - mesurer la vitesse des envois (5, 6) transportés par balayage en amont d'un étage de transport (2 ou 7, 8) respectivement en aval jusqu'à une distance maximale, inférieure à la longueur minimale convenue des envois, à l'aide de deux capteurs (3, 4, 9, 10) disposés des deux côtés sur le chemin de transport,
    - exploiter les résultats de mesure quand un capteur (3, 4, 9, 10) mesure une vitesse qui diffère seulement d'une petite valeur déterminée de la vitesse nominale du étage de transport (2 ou 7,8 ) suivant,
    - détecter un chevauchement quand les vitesses mesurées en même temps des deux capteurs (3, 4 ou 9, 10) sont différentes et que la vitesse mesurée la plus petite s'écarte d'une valeur déterminée de la vitesse la plus grande.
  2. Procédé selon la revendication 1, caractérisé en ce que les capteurs (3, 4, 9, 10) destinés à mesurer la vitesse des envois sont des rouleaux ou des bandes fixes qui se déplacent à la surface des envois et dont la vitesse de rotation sert de mesure à la vitesse des envois.
  3. Procédé selon la revendication 1, caractérisé en ce que les résultats de mesure ne commencent à être exploités qu'après un certain temps de retard, après lequel la vitesse mesurée par un capteur (3, 4) passe brusquement à une vitesse qui ne diffère que de peu de la vitesse nominale du étage de transport (2) suivant.
  4. Système pour reconnaître des envois plats en chevauchement dans un chemin de transport pour des envois transportés à la verticale les uns derrière les autres, comportant :
    - au moins deux étages de transport (1, 2 ou 2, 7, 8) l'un derrière l'autre dans le chemin de transport, la vitesse nominale du étage de transport (2 ou 7, 8) qui suit respectivement en direction de transport étant plus élevée que la vitesse nominale du étage de transport (1 ou 2) en amont,
    - deux capteurs (3, 4, 9, 10) disposés de chaque côté du chemin de transport et destinés à mesurer la vitesse des envois (5, 6) transportés par balayage en amont d'un étage de transport (2 ou 7, 8) respectivement en aval jusqu'à une distance maximale, inférieure à la longueur minimale convenue des envois,
    - un dispositif qui exploite les résultats de mesure quand un capteur (3, 4, 9, 10) mesure une vitesse qui diffère seulement d'une petite valeur déterminée de la vitesse nominale du étage de transport (2 ou 7, 8 ) suivant, de manière à détecter un chevauchement quand les vitesses mesurées en même temps des deux capteurs (3, 4 ou 9, 10) sont différentes et que la vitesse mesurée la plus petite diffère d'une valeur déterminée de la vitesse la plus grande.
  5. Système selon la revendication 4, caractérisé en ce que les capteurs (3, 4, 9, 10) destinés à mesurer la vitesse des envois sont des rouleaux ou des bandes fixes qui se déplacent à la surface des envois et dont la vitesse de rotation sert de mesure à la vitesse des envois.
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 EP1699719A1 (fr) 2006-09-13
EP1699719B1 true EP1699719B1 (fr) 2008-04-23

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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
WO2013190701A1 (fr) * 2012-06-22 2013-12-27 下西技研工業株式会社 Dispositif de détection à alimentation multiple, et dispositif de manipulation d'objets en forme de feuille
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

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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
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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

Also Published As

Publication number Publication date
DE502004006960D1 (de) 2008-06-05
DE10361720B3 (de) 2005-05-25
WO2005066052A1 (fr) 2005-07-21
EP1699719A1 (fr) 2006-09-13
US20070164507A1 (en) 2007-07-19
CN1902110A (zh) 2007-01-24
US7347417B2 (en) 2008-03-25
KR20060127956A (ko) 2006-12-13
JP2007516911A (ja) 2007-06-28

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