WO2004007100A2 - Procede de detection de prises multiples dans une installation de tri postal - Google Patents
Procede de detection de prises multiples dans une installation de tri postal Download PDFInfo
- Publication number
- WO2004007100A2 WO2004007100A2 PCT/FR2003/002183 FR0302183W WO2004007100A2 WO 2004007100 A2 WO2004007100 A2 WO 2004007100A2 FR 0302183 W FR0302183 W FR 0302183W WO 2004007100 A2 WO2004007100 A2 WO 2004007100A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- length
- ply
- installation
- sorting installation
- variation
- Prior art date
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
- 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
- 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
- B07C1/00—Measures preceding sorting according to destination
- B07C1/02—Forming articles into a stream; Arranging articles in a stream, e.g. spacing, orientating
- B07C1/04—Forming a stream from a bulk; Controlling the stream, e.g. spacing 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
- B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
- B65H2511/10—Size; Dimensions
- B65H2511/11—Length
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S209/00—Classifying, separating, and assorting solids
- Y10S209/90—Sorting flat-type mail
Definitions
- the invention relates to a method for detecting multiple pick-up folds in a postal sorting installation.
- the method is more particularly intended for a postal sorting installation in which postal envelopes are introduced at the inlet of the installation in the form of stacks of envelopes and in which each envelope is automatically unstacked to be routed to a sorting outlet corresponding to the recipient address it carries.
- a destacker located at the entrance to the installation places the folds in series one behind the other on a conveyor. At the outlet of such a destacker, or at the end of other stages in the sorting process, it happens that several folds remain attached to each other, which forms a fold in multiple grip (or multiple grip).
- the subject of the invention is a method for detecting folds in multiple pick-up in a postal sorting installation comprising a conveyor moving folds in series towards sorting outlets, consisting in passing each fold through a plurality of detectors arranged along the conveyor to measure at several points of said sorting installation the length of each ply in order to detect a variation in length of each ply, this variation in length being indicative of the presence of a ply in multiple grip, characterized in that we use as detectors passage detectors provided in the postal sorting installation and connected to a management system arranged to locate each fold along the conveyor so as to synchronize sorting operations, this management system being further programmed to perform said measurements of the length of each ply and detect a variation in the length of each ply.
- the folds of a multiple outlet are offset from each other due in particular to mechanical friction which constitutes a natural separating power.
- the overall length of the multiple takes tends to vary, so that an assessment of the variation in length of each ply provides reliable information for detecting the multiple takes.
- the evaluation of the length of a ply being relatively simple to implement, the performance of the installation is improved at a low cost.
- the measurements of the length of a fold with a passage detector may consist of measuring the time of passage of the fold in the detector or the distance traveled by the conveyor belts of the folds when the detector is obscured.
- the method can thus be implemented on an existing installation by simple reconfiguration of the passage detectors or by reconfiguration of the management system of the sorting installation.
- the detection of variation in length is inhibited for a predetermined duration during the start-up and / or shutdown phases of the installation.
- a postal sorting installation 1 comprises a station for inserting postal envelopes by stack or destacker 2, downstream of which a conveyor 3 and several referral stations (not shown) are intended to direct each mail fold to a sorting outlet corresponding to the recipient address it carries.
- each fold is for example photographed with a view to automatically identifying the recipient address that it carries, then it follows on the conveyor 3 a timing path of variable length.
- the length of each fold is measured at several points of the path so as to detect any variation in this length corresponding to a multiple grip.
- various passage detectors 4, 5, 6, 7 distributed along the path followed by the postal envelopes are connected to a management system of the sorting installation.
- This management system centralizes the data provided by these detectors to calculate the variation in length of each ply.
- a fold leaving the destacker 2 is first measured at 4 to obtain a reference length which is stored in the management system.
- another length measurement is made so that the management system calculates the difference between the measured length and the reference length in order to reject the fold if this difference is greater than a threshold value prerecorded in the installation management system.
- the variation in length of each ply is thus evaluated three times, in 5, 6 and 7 to improve the reliability of measurement.
- these passage detectors are connected to the installation management system so that the latter precisely locates each fold along the conveyor in order to synchronize the subsequent switching operations. More particularly, at the outlet of the destacker, the folds are spaced at irregular distances along the conveyor, so that it is essential to locate each fold after unstacking to synchronize the sorting installation. According to the invention, these passage detectors can usefully be used to carry out the length measurements, which makes it possible to implement the method on an existing sorting installation without adding dedicated sensors. The implementation of the method could thus consist simply in modifying the programming of the management system of the sorting installation.
- passage detectors are generally very simple: they typically comprise a photoelectric cell associated with a light ray so as to provide a presence signal when a postal envelope obscures the light signal.
- the appearance of a presence signal (ie its rising edge) is taken into account by the management system to control the installation.
- the measurement of the length of the pleats with such passage detectors will consist in taking into account the duration during which the presence signal is emitted and the average speed of travel in order to deduce therefrom the desired length.
- the measure of variation in length will be inhibited by the management system when starting and stopping the sorting installation in order to avoid measurement errors which may give rise to wrongful rejections.
- the conveying speeds are not homogeneous along the sorting installation, while the movement of the belts is only measured at certain points. This is a major source of error in length measurements.
- starting up the installation can disturb measurements of length variations.
- the variation measurements will be inhibited in the event of a shutdown of the sorting installation following a jam, or following the triggering of an emergency stop.
- the inhibition duration which is a predetermined duration recorded in the management system, corresponds substantially to the distance traveled by a letter between a command to stop the installation and a return at a speed deemed sufficient to be homogeneous along the sorting facility.
- the installation includes a conveyor advance counter
- the length variation measurements can be inhibited as soon as a stop is triggered, to be reactivated after restarting, as soon as the advance counter is incremented by a predetermined length.
- a feed counter still known as a pulse generator
- the -optics is generally connected to the management system of the installation to permanently provide it with the advancement position of the conveyor including during transient phases such as stopping and starting.
- the predetermined length conditioning the inhibition of the length variation measurements can for example be evaluated during tests. More particularly, this length corresponds to the effective movement of the conveyor between on the one hand the triggering of a stop and on the other hand the attainment of a nominal conveying speed after restarting.
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE60309715T DE60309715T2 (de) | 2002-07-11 | 2003-07-10 | Verfahren zur erkennung von mehrfachabzuegen in einer postsortiereinrichtung |
AU2003271799A AU2003271799A1 (en) | 2002-07-11 | 2003-07-10 | Method for detecting multiple overlapping covers in a mail sorting installation |
CA002487076A CA2487076C (fr) | 2002-07-11 | 2003-07-10 | Procede de detection de prises multiples dans une installation de tri postal |
JP2004520767A JP2005537913A (ja) | 2002-07-11 | 2003-07-10 | 郵便仕分け装置において多重封筒を検出するための方法 |
EP03753635A EP1526924B1 (fr) | 2002-07-11 | 2003-07-10 | Procede de detection de prises multiples dans une installation de tri postal |
US10/474,352 US7182335B2 (en) | 2002-07-11 | 2003-07-10 | Method of detecting overlaps in a postal sorting installation |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0208738A FR2842127A1 (fr) | 2002-07-11 | 2002-07-11 | Procede de detection de prises multiples dans une installation de tri postal |
FR02/08738 | 2002-07-11 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2004007100A2 true WO2004007100A2 (fr) | 2004-01-22 |
WO2004007100A3 WO2004007100A3 (fr) | 2004-04-08 |
Family
ID=29763744
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2003/002183 WO2004007100A2 (fr) | 2002-07-11 | 2003-07-10 | Procede de detection de prises multiples dans une installation de tri postal |
Country Status (10)
Country | Link |
---|---|
US (1) | US7182335B2 (fr) |
EP (1) | EP1526924B1 (fr) |
JP (1) | JP2005537913A (fr) |
AT (1) | ATE345176T1 (fr) |
AU (1) | AU2003271799A1 (fr) |
CA (1) | CA2487076C (fr) |
DE (1) | DE60309715T2 (fr) |
ES (1) | ES2273027T3 (fr) |
FR (1) | FR2842127A1 (fr) |
WO (1) | WO2004007100A2 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7654521B2 (en) * | 2004-04-06 | 2010-02-02 | Eastman Kodak Company | Apparatus, method and program product for detecting article multifeed overlap |
Families Citing this family (4)
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 |
US7862039B1 (en) * | 2004-04-27 | 2011-01-04 | Pitney Bowes Inc. | Multi-bin printer |
NZ708536A (en) * | 2010-05-07 | 2016-11-25 | Opex Corp | Method and apparatus for processing envelopes containing contents |
US20150001040A1 (en) * | 2013-07-01 | 2015-01-01 | Accelerate Inc. | Double Flat Detection and Correction System and Method |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3040866A (en) * | 1960-07-09 | 1962-06-26 | Telefunken Patent | Conveying device |
US3194552A (en) * | 1961-05-02 | 1965-07-13 | Int Standard Electric Corp | Arrangement for avoiding double pulloffs in systems serving singling-out of flat articles |
US3955812A (en) * | 1972-02-17 | 1976-05-11 | Nippon Electric Company Limited | Flat-article separating apparatus for an automatic mail handling system and the like |
DE2758007B1 (de) * | 1977-12-24 | 1979-03-01 | Licentia Gmbh | Verfahren zum Steuern des Abzugsvorgangs bei einer Einrichtung zur Abgabe vereinzelter Sendungen von unterschiedlicher Laenge sowie entsprechende Einrichtung |
WO1994017387A1 (fr) * | 1993-01-25 | 1994-08-04 | Pressco Technology, Inc. | Detecteur d'enveloppes multiples |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2309756A1 (de) * | 1973-02-27 | 1974-09-12 | Licentia Gmbh | Einrichtung zur abgabe von einzelnen briefen und aehnlichen flachen sendungen aus einem stapel |
US4733226A (en) * | 1986-01-07 | 1988-03-22 | Nec Corporation | Overlapped-transfer detecting apparatus for mail article |
GB9224016D0 (en) * | 1992-11-16 | 1993-01-06 | Z Mark Int Inc | Mail stamping apparatus and method |
DE10033638A1 (de) * | 2000-07-11 | 2002-01-24 | Heidelberger Druckmasch Ag | Überwachungsvorrichtung für die Bogenzufuhr zu einer Bogen verarbeitenden Maschine und Verfahren zur Kontrolle des Bogenstromaufbaus des Bogenstroms |
-
2002
- 2002-07-11 FR FR0208738A patent/FR2842127A1/fr not_active Withdrawn
-
2003
- 2003-07-10 AT AT03753635T patent/ATE345176T1/de not_active IP Right Cessation
- 2003-07-10 EP EP03753635A patent/EP1526924B1/fr not_active Expired - Lifetime
- 2003-07-10 AU AU2003271799A patent/AU2003271799A1/en not_active Abandoned
- 2003-07-10 DE DE60309715T patent/DE60309715T2/de not_active Expired - Lifetime
- 2003-07-10 WO PCT/FR2003/002183 patent/WO2004007100A2/fr active IP Right Grant
- 2003-07-10 US US10/474,352 patent/US7182335B2/en not_active Expired - Fee Related
- 2003-07-10 JP JP2004520767A patent/JP2005537913A/ja active Pending
- 2003-07-10 ES ES03753635T patent/ES2273027T3/es not_active Expired - Lifetime
- 2003-07-10 CA CA002487076A patent/CA2487076C/fr not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3040866A (en) * | 1960-07-09 | 1962-06-26 | Telefunken Patent | Conveying device |
US3194552A (en) * | 1961-05-02 | 1965-07-13 | Int Standard Electric Corp | Arrangement for avoiding double pulloffs in systems serving singling-out of flat articles |
US3955812A (en) * | 1972-02-17 | 1976-05-11 | Nippon Electric Company Limited | Flat-article separating apparatus for an automatic mail handling system and the like |
DE2758007B1 (de) * | 1977-12-24 | 1979-03-01 | Licentia Gmbh | Verfahren zum Steuern des Abzugsvorgangs bei einer Einrichtung zur Abgabe vereinzelter Sendungen von unterschiedlicher Laenge sowie entsprechende Einrichtung |
WO1994017387A1 (fr) * | 1993-01-25 | 1994-08-04 | Pressco Technology, Inc. | Detecteur d'enveloppes multiples |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7654521B2 (en) * | 2004-04-06 | 2010-02-02 | Eastman Kodak Company | Apparatus, method and program product for detecting article multifeed overlap |
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 |
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 |
Also Published As
Publication number | Publication date |
---|---|
ES2273027T3 (es) | 2007-05-01 |
AU2003271799A1 (en) | 2004-02-02 |
DE60309715T2 (de) | 2007-09-20 |
US7182335B2 (en) | 2007-02-27 |
US20040232055A1 (en) | 2004-11-25 |
ATE345176T1 (de) | 2006-12-15 |
FR2842127A1 (fr) | 2004-01-16 |
WO2004007100A3 (fr) | 2004-04-08 |
AU2003271799A8 (en) | 2004-02-02 |
CA2487076C (fr) | 2008-12-23 |
DE60309715D1 (de) | 2006-12-28 |
EP1526924A2 (fr) | 2005-05-04 |
EP1526924B1 (fr) | 2006-11-15 |
CA2487076A1 (fr) | 2004-01-22 |
JP2005537913A (ja) | 2005-12-15 |
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