EP0650911B1 - Dispositif et procédé pour reconnaítre le chevauchement d'envois plats flexibles - Google Patents

Dispositif et procédé pour reconnaítre le chevauchement d'envois plats flexibles Download PDF

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Publication number
EP0650911B1
EP0650911B1 EP94112015A EP94112015A EP0650911B1 EP 0650911 B1 EP0650911 B1 EP 0650911B1 EP 94112015 A EP94112015 A EP 94112015A EP 94112015 A EP94112015 A EP 94112015A EP 0650911 B1 EP0650911 B1 EP 0650911B1
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EP
European Patent Office
Prior art keywords
letter
letters
transport section
deflection
sections
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 - Lifetime
Application number
EP94112015A
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German (de)
English (en)
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EP0650911A1 (fr
Inventor
Gerhard Goldkuhle
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 of EP0650911A1 publication Critical patent/EP0650911A1/fr
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Publication of EP0650911B1 publication Critical patent/EP0650911B1/fr
Anticipated expiration legal-status Critical
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    • 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

Definitions

  • the invention relates to an apparatus and a method to detect overlaps of bendable flat Programs according to the preamble of claim 1 or 9.
  • the double deduction rate can further reduce that by double deduction errors problems also arise by identifying overlaps of the shipments are reduced.
  • To overlap shipment can be identified by rolling up or spraying on lines. Barcodes or other samples, if possible, over the entire length of the shipment Front and / or rear optically scannable tracks on the Apply the shipment surface. Consignments overlap determine the optical scanning of these tracks later because of overlaps Tick marks are missing or line jumps occur. With these procedures it is necessary to pre-treat the shipments in a first step, i.e. with traces. In a second step after new Isolation. e.g. for the fine distribution of letters. can be Then identify shipment overlaps.
  • EP 028 056 a generic device is known from EP 028 056, in which by means of light sensors and oblique lighting edges of consignments can be detected. With the help of a control circuit it is then determined whether there is a double deduction. This method is different as a result Surface condition of the consignments and soiling is badly flawed.
  • the object of the present invention is to provide a device and a method for detecting overlaps of bendable flat Programs with a reduced compared to the prior art Error rate.
  • the invention is based on movable sections of the shipment for each shipment temporarily deflect perpendicular to the conveying direction and by evaluating the snapback behavior of the Consignments the existence of overlapping consignment sections to detect.
  • the detection of overlapping program sections take place in that Measurements of the temporary distance of the trailing edges of the deflected Consignment sections take place.
  • the detection can, however also by measuring changes in capacity when detuned an oscillator, or by sensing Pressure that the tear-off edges exert after the snapback respectively.
  • the invention results in extensive independence in the detection of overlaps from the Surface quality of the consignments. Therefore at solution according to the invention also not stickers, brands, edge bands or windows incorrectly as indicators of overlap identified.
  • the deflection of the consignment sections can be perpendicular to the conveying direction on the front or on the back of the shipment respectively.
  • it is advantageous to move the movable sections of the shipment both on the front of the shipment as well as perpendicular to the back of the shipment Deflect the direction of conveyance and for each of these deflection types evaluate the rapid response of the shipments.
  • deflection elements on opposite sides of the transport route arranged to shipments both on the front as well as the back of the shipment.
  • the detection device for detecting overlaps a lighting device for generating light beams and at least two optical receivers, the Beam of light on the room area in which the temporary deflection the program sections are done, are focused and the optical receiver on opposite sides of the transport route are arranged such that only when deflection of programs with overlapping sections around the given one Amount of light entering the optical receiver is interrupted at the same time.
  • the transport route 1 has two transport belts 2, 3, which are guided over a letter plate 4.
  • drive and guide the conveyor belts used drive and guide elements are for Simplification not shown.
  • deduction facility from which the shipments before they are fed into the transport route by one Stacks have been withdrawn.
  • the flat broadcasts i.e. Long letters, letters and postcards
  • Different formats are usually on their long edges promoted standing in the transport route 1. Cover it the conveyor belts only a small section of the total Shipment surface, so that larger sections of the shipments protrude above and below the conveyor belts.
  • the invention also relates to transport routes at who are promoting the programs in a different way than with two transport belts are made as long as it is only guaranteed that the consignments protrude over an edge against which the consignment sections can be deflected.
  • the mail deflection element 6 is preferably rod-shaped trained and laterally offset to the transport route. It protrudes into the transprot section, so that a funded letter as soon as it reaches the area of the transport route, into which the deflection element protrudes, in the sections protruding beyond the conveyor belts is forcibly deflected.
  • the deflection element preferably forms an obtuse angle ⁇ with the direction of transport, so that a slow, gentle deflection of the relevant shipment sections.
  • the distance of the shipment side End of the deflection element from the transport plane of the shipments determines the maximum deflection of the Consignment sections, the bending properties of the consignments can be adjusted.
  • the deflection element is on attached to a carrier 7 so that the element in a sufficient Distance from the edge of the conveyor belts, above the conveyor belts is arranged. To damage the To avoid shipments, it is advantageous to attach to provide the deflection element such that a predetermined maximum deflection force is not exceeded.
  • a maximum permissible deflection force can be determined by a rotatable Suspension of the deflection element achieved with every counterforce will.
  • Optical receivers 9, 10 are on opposite sides arranged the transport route.
  • an illumination device is arranged, the light beams towards the optical receiver emitted.
  • Halogen lamps are preferably used for this, Used LEDs or other quickly switchable light sources, so that the light beams with a pulse train between 10 and 100 kHz can be emitted.
  • the lighting device and the optical receivers are electrical with a no closer shown evaluation electronics connected to the emission and controls and monitors the reception of the light beams.
  • the interference immunity of the device against environmental influences increase, in addition to a pulse repetition frequency between 10 and 100 kHz an arbitrarily high AC voltage gain in the Receiving part of the facility used.
  • the device works as follows:
  • a program that overlaps with a second program is interrupted in the direction of the optical receiver 10 emitted light beam through the overlapping broadcast.
  • the second shipment still in the area of the deflection element 6, see above that the section protruding over the edge of the conveyor belt is steered out and towards the optical receiver 9 emitted light bundle is also interrupted.
  • FIG. 2 is a top view of the configuration with an overlapping Shown pair D1, D2. Because at the time in which the first shipment D1 is already out of the area of the deflection element 6 has been promoted so that the rear edge the broadcast D1 has flipped back and that in the direction light beams emitted on the photoreceptor 10 are interrupted is, a section of the program D2 is still being deflected also the beam of rays pointing towards the photo receiver 9 is emitted, still interrupted. The result is an interruption of both light beams.
  • the The programs overlap a double layer of the concerned Consignment sections formed.
  • the deflection element 6 there is an upper and a lower broadcast. So that a detection of overlaps according to the above Procedure is possible, it is necessary that the lower shipment has a section from the upper Consignment is not covered or overlapped, so that the deflection this section is done after the top shipment is no longer deflected. So as many overlaps as possible to recognize it is advantageous to have two in a row offset deflection elements with respectively assigned optical To provide recipients so that the consignments one after the other in opposite directions, i.e. both on the front of the shipment as well as the back of the shipment, and with each the deflection behavior of the shipments evaluate.
  • FIG 3 shows a top view of a preferred embodiment, in the case of a separation of the consignments in a double separation device 12 the shipments of the transport route 1 first to a first deflection element 61 and then led to a second deflection element 62 will.
  • the deflection element 61 is the lighting device 111 and the optical receivers 91 and 101 assigned.
  • the deflection element 62 is the lighting device 112 and the optical receivers 92 and 102.
  • the shipments are both on the front of the shipment as well as the back of the shipment.

Landscapes

  • Controlling Sheets Or Webs (AREA)
  • Sorting Of Articles (AREA)

Claims (12)

  1. Dispositif pour reconnaítre le chevauchement d'envois plats flexibles (D1, D2) dans un trajet de transport (1) pour l'acheminement séquentiel des envois se tenant sur une de leurs arêtes, caractérisé en ce que
    au moins un élément de déviation (6, 61, 62) est situé sur le trajet de transport (1), élément au moyen duquel au moins un segment mobile de chaque envoi peut subir temporairement une déviation d'ampleur prédéterminée de manière perpendiculaire par rapport à la direction d'acheminement pendant l'acheminement dans le trajet de transport, et
    un dispositif de détection (9-11; 91, 101, 111; 92, 102, 112) est prévu afin de détecter, sur la base du comportement de retour des segments d'envois, la présence de segments d'envois qui se chevauchent.
  2. Dispositif selon la revendication 1, caractérisé en ce que le trajet de transport (1) comprend des bandes de transport (2, 3) entre lesquelles les envois plats sont guidés.
  3. Dispositif selon les revendications 1-2, caractérisé en ce que les éléments de déviation (61, 62) sont situés sur les côtés opposés du trajet de transport (1).
  4. Dispositif selon les revendications 1-3, caractérisé en ce que le dispositif de détection comprend un dispositif d'éclairage (11, 111, 112) servant à produire des faisceaux lumineux et au moins deux récepteurs optiques (9, 10; 91, 101; 92, 102), les faisceaux lumineux étant focalisés sur la région de l'espace dans laquelle se produit la déviation temporaire des segments d'envois, les récepteurs optiques (9, 10) étant situés le long du trajet de transport (1), de manière à ce que l'incidence de la lumière dans les récepteurs optiques (9, 10; 91, 101; 92, 102) soit interrompue, simultanément, seulement lorsque des envois présentant des segments qui se chevauchent subissent une déviation dont l'ampleur est prédéterminée.
  5. Dispositif selon les revendications 1-4, caractérisé en ce que les récepteurs optiques (9, 10; 91, 101; 92, 102) sont situés sur les côtés opposés du trajet de transport (1).
  6. Dispositif selon les revendications 4-5, caractérisé en ce que chaque élément de déviation (6, 61, 62) comprend une partie qui avance de manière oblique dans la région du trajet de transport (1), partie dont l'extrémité située sur le côté des envois est pourvue du dispositif d'éclairage (11; 111, 112).
  7. Dispositif selon les revendications 4-6, caractérisé en ce que le dispositif d'éclairage (11, 111, 112) émet des faisceaux lumineux avec une cadence d'impulsions comprise entre 10 et 100 kHz.
  8. Dispositif selon les revendications 1-7, caractérisé en ce que chaque élément de déviation (6; 61, 62) est fixé de manière à ce que soit exercée sur les envois, au maximum, une force de déviation prédéterminée.
  9. Procédé pour reconnaítre le chevauchement d'envois plats flexibles qui sont acheminés de manière séquentielle dans un trajet de transport (1), en se tenant sur une de leurs arêtes, caractérisé en ce que l'acheminement des envois dans le trajet de transport (1) s'effectue de manière à ce qu'au moins un segment mobile de chaque envoi subisse temporairement une déviation d'ampleur prédéterminée de manière perpendiculaire par rapport à la direction d'acheminement, et en ce qu'une analyse du comportement de retour des envois est réalisée pour détecter la présence de segments d'envois se chevauchant.
  10. Procédé selon la revendication 9, caractérisé en ce que la déviation se produit sur le côté antérieur ou sur le côté postérieur des envois.
  11. Procédé selon les revendications 9-10, caractérisé en ce que la déviation se produit aussi bien sur le côté antérieur que sur le côté postérieur des envois.
  12. Procédé selon les revendications 9-11, caractérisé en ce que l'acheminement est effectué dans le trajet de transport (1) par des bandes de transport (2, 3) entre lesquelles les envois plats sont guidés, les envois étant déviés directement au niveau du bord supérieur ou du bord inférieur des courroies, ou à proximité de celui-ci.
EP94112015A 1993-10-29 1994-08-02 Dispositif et procédé pour reconnaítre le chevauchement d'envois plats flexibles Expired - Lifetime EP0650911B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4337004A DE4337004A1 (de) 1993-10-29 1993-10-29 Vorrichtung und Verfahren zum Erkennen von Überlappungen von biegbaren flachen Sendungen
DE4337004 1993-10-29

Publications (2)

Publication Number Publication Date
EP0650911A1 EP0650911A1 (fr) 1995-05-03
EP0650911B1 true EP0650911B1 (fr) 1998-12-02

Family

ID=6501371

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94112015A Expired - Lifetime EP0650911B1 (fr) 1993-10-29 1994-08-02 Dispositif et procédé pour reconnaítre le chevauchement d'envois plats flexibles

Country Status (6)

Country Link
US (1) US5560598A (fr)
EP (1) EP0650911B1 (fr)
JP (1) JPH07172628A (fr)
CN (1) CN1109439A (fr)
AT (1) ATE173999T1 (fr)
DE (2) DE4337004A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10027874C1 (de) * 2000-06-06 2001-11-22 Siemens Ag Einrichtung zum Erkennen von überlappten, biegsamen, flachen Sendungen
DE10142331C1 (de) * 2001-08-30 2003-03-27 Siemens Dematic Ag Verfahren und Anordnung zum Erkennen von Überlappungen
DE10361720B3 (de) * 2003-12-30 2005-05-25 Siemens Ag Verfahren und Anordnung zum Erkennen von überlappten flachen Sendungen
CN110665839A (zh) * 2019-10-12 2020-01-10 贾涛 一种基于视觉检测的板簧弧度检测设备

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DE19625043C1 (de) * 1996-06-22 1997-04-10 Aeg Electrocom Gmbh Verfahren zur Ermittlung von Überlappungen
DE19625044A1 (de) * 1996-06-22 1998-01-02 Siemens Ag Verfahren zum Erkennen von Überlappungen von flachen Sendungen
JP3731976B2 (ja) * 1997-05-23 2006-01-05 日立オムロンターミナルソリューションズ株式会社 重送検知装置および方法
US6189879B1 (en) * 1998-11-09 2001-02-20 Heidelberger Druckmaschinen Ag Thickness measurement apparatus
US6328300B1 (en) 1999-10-04 2001-12-11 Pitney Bowes Inc. Aligner mechanism for a mail handling system
NL1015266C2 (nl) * 2000-05-23 2001-12-14 Koninkl Kpn Nv Inrichting en werkwijze voor het detecteren van overlappende voorwerpen.
JP2005512030A (ja) * 2001-12-03 2005-04-28 シーメンス　アクチエンゲゼルシヤフト 多重物の検出装置および多重物の検出方法
US7025348B2 (en) * 2002-11-25 2006-04-11 Eastman Kodak Company Method and apparatus for detection of multiple documents in a document scanner using multiple ultrasonic sensors
DE10310546B3 (de) * 2003-03-11 2004-08-26 Siemens Ag Verfahren zur Ermittlung von Mehrfachabzüge betreffenden Leistungswerten einer Sortiermaschine und eines Detektors zum Erkennen der Mehrfachabzüge
DE10319723B3 (de) * 2003-05-02 2004-09-16 Siemens Ag Verfahren und Vorrichtung zum Ausrichten von flachen Sendungen auf eine Schmalseite
DE10335645B3 (de) * 2003-08-04 2005-01-20 Siemens Ag Verfahren zum Betrieb eines Detektors zum Erkennen von Überlappungen flacher Sendungen in einer Sortiermaschine
US7201369B2 (en) * 2004-12-09 2007-04-10 Lockheed Martin Corporation Vertical justification system
DE102005031492A1 (de) * 2005-07-06 2007-01-11 Siemens Ag Verfahren zur Ablage eines frei bewegenden flachen Gegenstands
US8585050B2 (en) 2011-12-06 2013-11-19 Eastman Kodak Company Combined ultrasonic-based multifeed detection system and sound-based damage detection system

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CH660350A5 (de) * 1983-06-14 1987-04-15 Ferag Ag Einrichtung zum feststellen mehrfach belegter plaetze in einem kontinuierlich gefoerderten strom von gleichmaessige abstaende voneinander aufweisenden druckprodukten sowie verwendung dieser einrichtung.
FR2617466B1 (fr) * 1987-07-01 1990-10-12 Cga Hbs Dispositif d'extraction et de mise en vitesse d'objets plats
US4974825A (en) * 1988-09-09 1990-12-04 Ciba-Geigy Corporation Envelope feeder with separator shuttle assembly
US5202557A (en) * 1992-04-06 1993-04-13 Electrocom Automation L.P. Method and apparatus for detecting overlapping products in a singulated product stream
JPH05294513A (ja) * 1992-04-17 1993-11-09 Fuji Photo Film Co Ltd 自動給紙装置の重送検出装置
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10027874C1 (de) * 2000-06-06 2001-11-22 Siemens Ag Einrichtung zum Erkennen von überlappten, biegsamen, flachen Sendungen
DE10142331C1 (de) * 2001-08-30 2003-03-27 Siemens Dematic Ag Verfahren und Anordnung zum Erkennen von Überlappungen
DE10361720B3 (de) * 2003-12-30 2005-05-25 Siemens Ag Verfahren und Anordnung zum Erkennen von überlappten flachen Sendungen
CN110665839A (zh) * 2019-10-12 2020-01-10 贾涛 一种基于视觉检测的板簧弧度检测设备
CN110665839B (zh) * 2019-10-12 2021-11-05 山东安盛汽车配件股份有限公司 一种基于视觉检测的板簧弧度检测设备

Also Published As

Publication number Publication date
ATE173999T1 (de) 1998-12-15
CN1109439A (zh) 1995-10-04
DE59407384D1 (de) 1999-01-14
DE4337004A1 (de) 1995-05-04
JPH07172628A (ja) 1995-07-11
EP0650911A1 (fr) 1995-05-03
US5560598A (en) 1996-10-01

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