EP1868743B1 - Method for controlling the opening mechanism of pockets provided with flat objects - Google Patents

Method for controlling the opening mechanism of pockets provided with flat objects Download PDF

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Publication number
EP1868743B1
EP1868743B1 EP06706986A EP06706986A EP1868743B1 EP 1868743 B1 EP1868743 B1 EP 1868743B1 EP 06706986 A EP06706986 A EP 06706986A EP 06706986 A EP06706986 A EP 06706986A EP 1868743 B1 EP1868743 B1 EP 1868743B1
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EP
European Patent Office
Prior art keywords
container
determined
objects
pocket
containers
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Not-in-force
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EP06706986A
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German (de)
French (fr)
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EP1868743A1 (en
Inventor
Armin Zimmermann
Peter Enenkel
Beat Fritsche
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Siemens AG
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Siemens AG
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Publication of EP1868743A1 publication Critical patent/EP1868743A1/en
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    • 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
    • B07C3/02—Apparatus characterised by the means used for distribution
    • B07C3/08—Apparatus characterised by the means used for distribution using arrangements of conveyors
    • B07C3/082—In which the objects are carried by transport holders and the transport holders form part of the conveyor belts

Definitions

  • the invention relates to a method for controlling the opening mechanism of bags with flat objects.
  • Flat objects in particular consignments of different mass and surface, should be stored individually from pockets in containers located underneath, with pockets and containers moving at a differential speed relative to each other. In this case, a speed can also be zero.
  • the objects are placed on two edges aligned. This alignment is a prerequisite for a machine further processing, for. As for a sequence sorting and the associated, subsequent manual handling by the postman.
  • the document DE 103 05 847 B3 describes a device having an opening mechanism of pockets with flat objects which are gravity fed into underlying containers in a lying position with pockets and containers in relative motion.
  • the transmission characteristics are determined and the time at which the opening mechanism of a bag is actuated varies with regard to an optimum stack quality as a function of the determined transmission characteristics.
  • the thickness of the shipments As a broadcasting property called the DE 103 05 847 B3 this example, the thickness of the shipments.
  • the invention has for its object to provide a method for controlling the opening mechanism of pockets with flat objects for transferring the flat objects by gravity in underlying container in a lying position, with which the alignment of flat objects of different mass and surface is improved on the container wall ,
  • the period of time after passing through a reference point fixed to a pocket position is determined experimentally by a reference edge of the container, wherein the opening mechanism depends on the mass of the objects and / or on the previously determined friction coefficient between the bottom pocket wall and the bearing surface of predetermined categories of objects and / or the stack height in the container and the shape according to the type of container used in the relative direction of transport of the container front container wall is opened so that each shipment is stored aligned with this container wall.
  • the determined values with the sizes of which they depend are then stored.
  • For each item its mass and / or category and / or the current stack height in the containers is determined.
  • the stored time is determined for transferring a particular item from the appropriate bag in a particular container of a known type of container based on the respective mass and / or the coefficient of friction and / or the current stack height of the container in question. After the time of passing the reference point by the reference edge of the container in question and the time period determined then the opening mechanism of the bag is opened.
  • the measured thicknesses of the previously passed into this container items are summed.
  • the articles can also be compressible and measurement errors can add up, it is advantageous, in the case of moving containers, to guide them past at least one measuring station for determining the stack height and the stack height obtained by summation of the measured thicknesses of the articles by the deviating measured value of To correct the measuring station.
  • Both the pockets 1 and the containers 5 are inclined in the transport direction of the container 5.9.
  • the objects 3 in the pocket 1 are oriented downwards and rest on the lower pocket wall 2.
  • At the lower end of each pocket there is an opening mechanism 4, which holds the articles 3 in the closed state and which is opened when the respective article 3 is to enter a certain container 5 by means of gravity.
  • the drives of the opening mechanisms 4 are not shown, their implementation and control represents no difficulty for a person skilled in the art.
  • the opening time depends on the speed of the container 5, the mass of the objects 3, the friction coefficient between the objects 3 and the lower pocket wall 2, the time when the respective front reference edge of the container 5,9, in this case the upper front reference edge 7, during transport passes the lower part of the respective pocket 1, from the stack height of the already in the respective container 5.9 located stack 8 and the shape of the ih transport direction front container wall, where the objects 3 abut with its front edge from.
  • the position of the reference edges 7 of the container 5.9 during transport is determined by the reference edge 7 is detected when it moves past a corresponding sensor and therefore due to the known constant speed can be determined when the reference edge 7, the known position of the lower part the respective bag 1 happens.
  • This can also be solved more expensively by attaching a sensor for detecting the reference edge to the lower part of each pocket 1.
  • a sensor for detecting the reference edge is attached to the lower part of each pocket 1.
  • They dimensions are measured and their mass is determined indirectly by multiplying the volume by an average density. Although this is relatively inaccurate, but due to conducted test series for the control of the opening mechanisms 4 sufficiently accurate enough.
  • the respective stack height is obtained from the summation of the thicknesses of the stacked objects 3, this value being corrected after passing through a measuring station for determining the stack height and corresponding deviation.
  • the respective period of time after passing through the lower part of the bag 1 by the front reference edge 7 of the container 5.9 determined in test series depending on article mass, coefficient of friction according to the established item category, eg paper and plastic surface, stack height and container shape , in which results in an optimal alignment of the objects 3 on the front in the transport direction of the container wall.
  • article mass, coefficient of friction is determined by distinguishing the article category and stack height in the intended bin 5,9, and the stored time found with these values according to the type of bin used is then transferred to the control of the opening mechanism 4 so that the opening mechanism 4 becomes the correct one Time, when the distances S 0 , S 1 , S u or S o are reached, is opened.
  • FIG. 3 the memory structure is shown, in which the respective time period T s is stored as a function of the coefficient of friction ⁇ , the volume V, the stack height h and the container type B.
  • the pockets 1 can also be designed according to the FIG. 1 and 2 be moved to the left or both.
  • the reference point then has a fixed position to a pocket.
  • test series before operating mode have given correspondingly satisfactory results with respect to the stack images to control the opening times only in response to individual or only less variable parameters.

Abstract

The aim of the invention is to transfer flat objects (3) by means of gravity in containers (5, 9) which are arranged below the lying position. The duration is determined prior to the operative transfer operation, in relation to the speed of the pockets and containers, after a fixed reference point in relation to a pocket position by a reference edge (7) of the container (5, 9), wherein the opening mechanism (4) of the respective pocket (1) is open according to the mass of the object (3) and/or the predetermined friction coefficients of the categories of the objects (3) which are predetermined by the bearing surfaces and/or the height of the stack in the container (5,9) in addition to the shape which corresponds to the type of container of the wall of the container stack in front of the container (5, 9) in the direction of transportation, such that each object (3) is placed so that it is oriented towards said container wall. The values which are determined by size, which they are dependent upon, are stored. During the operative transfer operation, the above-mentioned parameters are measured for the objects (3) and the obtained stored duration is determined such that the moment the reference point passes through the reference edge (7) of the relevant container (5,9) and the determined duration, the mechanism (4) of the pocket is opened.

Description

Die Erfindung betrifft ein Verfahren zur Steuerung des Öffnungsmechanismus von Taschen mit flachen Gegenständen. Flache Gegenstände, insbesondere Sendungen unterschiedlicher Masse und Oberfläche, sollen einzeln aus Taschen in sich darunter befindliche Behälter, wobei sich Taschen und Behälter mit einer Differenzgeschwindigkeit zueinander bewegen, abgelegt werden. Dabei kann eine Geschwindigkeit auch null sein. Die Gegenstände werden auf zwei Kanten ausgerichtet abgelegt. Diese Ausrichtung ist Voraussetzung für eine maschinelle Weiterverarbeitung, z. B. für eine Gangfolgesortierung und die damit verbundene, sich anschließende manuelle Handhabung durch den Briefträger.The invention relates to a method for controlling the opening mechanism of bags with flat objects. Flat objects, in particular consignments of different mass and surface, should be stored individually from pockets in containers located underneath, with pockets and containers moving at a differential speed relative to each other. In this case, a speed can also be zero. The objects are placed on two edges aligned. This alignment is a prerequisite for a machine further processing, for. As for a sequence sorting and the associated, subsequent manual handling by the postman.

Das Dokument DE 103 05 847 B3 beschreibt eine Vorrichtung mit einem Öffnungsmechanismus von Taschen mit flachen Gegenständen, die mittels Schwerkraft in darunter befindliche Behälter in liegender Position übergeben werden, wobei sich Taschen und Behälter in Relativbewegung zueinander befinden. Dabei werden die Sendungseigenschaften ermittelt und der Zeitpunkt, zu dem der Öffnungsmechanismus einer Tasche betätigt wird, im Hinblick auf eine optimale Stapelqualität in Abhängigkeit von den ermittelten Sendungseigenschaften variiert. Als Sendungseigenschaft nennt die DE 103 05 847 B3 hierzu beispielhaft die Dicke der Sendungen.The document DE 103 05 847 B3 describes a device having an opening mechanism of pockets with flat objects which are gravity fed into underlying containers in a lying position with pockets and containers in relative motion. In this case, the transmission characteristics are determined and the time at which the opening mechanism of a bag is actuated varies with regard to an optimum stack quality as a function of the determined transmission characteristics. As a broadcasting property called the DE 103 05 847 B3 this example, the thickness of the shipments.

Im Dokument EP 0 708 693 B1 wird eine Sortiereinrichtung für Sendungen beschrieben, bei der über Zieladressen zugeordneten, örtlich festen Behältern Taschen mit Sendungen umlaufen. Entsprechend der gelesen Zieladressen der Sendungen werden diese in die zugeordneten Behälter abgelegt. Dabei werden die Taschen stets an einer bestimmten fixen Position über dem jeweiligen Behälter geöffnet. Die optimale Öffnungsposition, bei der Sendungen im Behälter an der in Bewegungsrichtung vorderen Wand des Behälters ausgerichtet abgelegt werden, variiert aber in Abhängigkeit von Sendungseigenschaften, wie unterschiedlichen Reibkoeffizienten zwischen den Sendungen und den Taschen und Massen der Sendungen, und einer variablen Abwurfhöhe durch unterschiedliche Behälterfüllstände, was bei einer fixen Übergabeposition einen Kompromiss darstellt, mit der Folge schlechter Ausrichtung der Sendungen in Bewegungsrichtung.In the document EP 0 708 693 B1 a sorting device for shipments is described in which associated with destination addresses, locally fixed containers bags with broadcasts. According to the read destination addresses of the items they are stored in the associated container. Here are the Bags always open at a certain fixed position above the respective container. However, the optimum opening position at which shipments are placed in the container aligned with the front wall of the container in the direction of travel, but varies depending on transmission characteristics, such as different coefficients of friction between the programs and the bags and masses of the shipments, and a variable discharge height by different container levels, which represents a compromise in a fixed transfer position, with the result of poor alignment of the programs in the direction of movement.

Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren zur Steuerung des Öffnungsmechanismus von Taschen mit flachen Gegenständen zur Übergabe der flachen Gegenstände mittels Schwerkraft in darunter befindliche Behälter in liegender Position zu schaffen, mit dem die Ausrichtung flacher Gegenstände unterschiedlicher Masse und Oberfläche an der Behälterwand verbessert wird.The invention has for its object to provide a method for controlling the opening mechanism of pockets with flat objects for transferring the flat objects by gravity in underlying container in a lying position, with which the alignment of flat objects of different mass and surface is improved on the container wall ,

Erfindungsgemäß wird die Aufgabe durch die Merkmale des Anspruches 1 gelöst.According to the invention the object is achieved by the features of claim 1.

Dabei wird vor dem operativen Übergabebetrieb zu festgelegten Taschen- und Behältergeschwindigkeiten experimentell die Zeitdauer nach Passieren eines zu einer Taschenposition festen Bezugspunktes durch eine Bezugskante des Behälters ermittelt, bei welcher der Öffnungsmechanismus in Abhängigkeit von der Masse der Gegenstände und/oder vom vorher ermittelten Reibkoeffizienten zwischen der unteren Taschenwand und der Auflagefläche festgelegter Kategorien der Gegenstände und/oder der Stapelhöhe im Behälter sowie der Form entsprechend der eingesetzten Behälterart der in relativer Transportrichtung der Behälter vorderen Behälterwand geöffnet wird, damit jede Sendung an dieser Behälterwand ausgerichtet abgelegt wird. Die ermittelten Werte mit den Größen, von denen sie abhängen, werden dann abgespeichert. Beim operativen Übergabebetrieb wird für jeden Gegenstand seine Masse und/oder Kategorie und/oder die aktuelle Stapelhöhe in den Behältern ermittelt. Damit wird zum Übergeben eines bestimmten Gegenstandes aus der entsprechenden Tasche in einen bestimmten Behälter einer bekannten Behälterart anhand der jeweiligen Masse und/oder des Reibkoeffizienten und/oder der aktuellen Stapelhöhe des betreffenden Behälters die gespeicherte Zeitdauer festgestellt. Nach dem Zeitpunkt des Passierens des Bezugspunktes durch die Bezugskante des betreffenden Behälters und der festgestellten Zeitdauer wird dann der Öffnungsmechanismus der Tasche geöffnet. Mit diesen Maßnahmen wird sichergestellt, dass die Gegenstände unabhängig von ihrer Oberflächenbeschaffenheit, ihrer Masse und von der Stapelhöhe stets an der Behälterstapelwand liegen.In this case, prior to the operative transfer operation at fixed pocket and container speeds, the period of time after passing through a reference point fixed to a pocket position is determined experimentally by a reference edge of the container, wherein the opening mechanism depends on the mass of the objects and / or on the previously determined friction coefficient between the bottom pocket wall and the bearing surface of predetermined categories of objects and / or the stack height in the container and the shape according to the type of container used in the relative direction of transport of the container front container wall is opened so that each shipment is stored aligned with this container wall. The determined values with the sizes of which they depend, are then stored. During operative transfer operation, for each item its mass and / or category and / or the current stack height in the containers is determined. Thus, the stored time is determined for transferring a particular item from the appropriate bag in a particular container of a known type of container based on the respective mass and / or the coefficient of friction and / or the current stack height of the container in question. After the time of passing the reference point by the reference edge of the container in question and the time period determined then the opening mechanism of the bag is opened. These measures ensure that the objects always lie on the container stacking wall regardless of their surface condition, their mass and the stack height.

Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen dargelegt.Advantageous embodiments of the invention are set forth in the subclaims.

Um die Masse der Gegenstände kostengünstig zu ermitteln, ist es vorteilhaft, deren Abmessungen zu messen und das daraus bestimmte Volumen mit einer mittleren Dichte zu multiplizieren.In order to determine the mass of the objects inexpensively, it is advantageous to measure their dimensions and to multiply the volume determined therefrom by an average density.

Zur aufwandsarmen Ermittlung der aktuellen Stapelhöhe in jedem Behälter werden die gemessenen Dicken der bisher in diesen Behälter geleiteten Gegenstände summiert.For low-cost determination of the current stack height in each container, the measured thicknesses of the previously passed into this container items are summed.

Da die Gegenstände auch kompressibel sein können und Messfehler sich addieren können, ist es vorteilhaft, bei bewegten Behältern diese an wenigstens einer Messstation zur Ermittlung der Stapelhöhe vorbei zu führen und die durch Summierung der gemessenen Dicken der Gegenstände erhaltene Stapelhöhe durch den davon abweichenden gemessenen Wert der Messstation zu korrigieren.Since the articles can also be compressible and measurement errors can add up, it is advantageous, in the case of moving containers, to guide them past at least one measuring station for determining the stack height and the stack height obtained by summation of the measured thicknesses of the articles by the deviating measured value of To correct the measuring station.

Anschließend wird die Erfindung in einem Ausführungsbeispiel anhand der Zeichnungen erläutert.Subsequently, the invention will be explained in an embodiment with reference to the drawings.

Dabei zeigen

FIG 1
eine schematische Seitenansicht von bewegten Behältern mit geraden Wänden und darüber ange- ordneten, örtlich festen Taschen einer Sortier- maschine,
FIG 2
eine schematische Seitenansicht von bewegten Behältern mit speziell geformten Wänden und darüber angeordneten, örtlich festen Taschen einer Sortiermaschine,
FIG 3
eine schematische Darstellung der Speicher- struktur für Öffnungszeitpunkte der Taschen.
Show
FIG. 1
1 a schematic side view of moving containers with straight walls and spatially fixed pockets of a sorting machine arranged above them,
FIG. 2
a schematic side view of moving containers with specially shaped walls and arranged above, locally fixed pockets of a sorting machine,
FIG. 3
a schematic representation of the memory structure for opening times of the pockets.

Wie in FIG 1 und 2 dargestellt sind Behälter 5,9 mit geraden und anders geformten Wänden hintereinander auf Behälteraufnahmen 6 gelagert, die in einer nicht dargestellten Transporteinrichtung in Pfeilrichtung mit festgelegter Geschwindigkeit transportiert werden. Über ihnen und der Transportbahn sind örtlich fest mehrere Taschen 1 hintereinander angeordnet, die von oben mit flachen Gegenständen 3 gefüllt werden. Sowohl die Taschen 1 als auch die Behälter 5 sind in Transportrichtung der Behälter 5,9 geneigt. Dadurch sind die Gegenstände 3 in der Tasche 1 nach unten orientiert und liegen auf der unteren Taschenwand 2 auf. Am unteren Ende jeder Tasche befindet sich ein Öffnungsmechanismus 4, der die Gegenstände 3 im geschlossenen Zustand hält und der geöffnet wird, wenn der jeweilige Gegenstand 3 in einen bestimmten Behälter 5 mittels Schwerkraft gelangen soll. Die Antriebe der Öffnungsmechanismen 4 sind nicht dargestellt, ihre Realisierung und Ansteuerung stellt für einen Fachmann keine Schwierigkeit dar. Der Öffnungszeitpunkt hängt von der Geschwindigkeit der Behälter 5, der Masse der Gegenstände 3, dem Reibkoeffizienten zwischen den Gegenständen 3 und der unteren Taschenwand 2, dem Zeitpunkt, wann die jeweilige vordere Bezugskante der Behälter 5,9, in diesem Fall der oberen vorderen Bezugskante 7, während des Transportes den unteren Teil der jeweiligen Tasche 1 passiert, von der Stapelhöhe des schon im jeweiligen Behälter 5,9 befindlichen Stapels 8 und der Form der ih Transportrichtung vorderen Behälterwand, an denen die Gegenstände 3 mit ihrer Vorderkante anliegen, ab. Die Position der Bezugskanten 7 der Behälter 5.9 beim Transport wird ermittelt, indem die Bezugskante 7 detektiert wird, wenn sie sich an einem entsprechenden Sensor vorbei bewegt und aufgrund der bekannten konstanten Geschwindigkeit kann also festgestellt werden, wann die Bezugskante 7 die bekannte Position des unteren Teils der jeweiligen Tasche 1 passiert. Aufwändiger kann dies auch gelöst werden, indem am unteren Teil jeder Tasche 1 ein Sensor zur Detektion der Bezugskante angebracht ist. Bevor die Gegenstände 3 in die Taschen 5 gelangen, werden ihre Abmessungen gemessen und daraus indirekt ihre Masse ermittelt, indem das Volumen mit einer mittleren Dichte multipliziert wird. Dies ist zwar relativ ungenau, aber aufgrund von durchgeführten Versuchsreihen für die Ansteuerung der Öffnungsmechanismen 4 hinreichend genau genug. Die jeweilige Stapelhöhe wird aus der Summation der Dicken der eingestapelten Gegenstände 3 gewonnen, wobei dieser Wert nach Durchlaufen einer Messstation zur Ermittlung der Stapelhöhe und entsprechender Abweichung korrigiert wird. Im Vorfeld des operativen Betriebes wird in Versuchsreihen in Abhängigkeit von Gegenstandsmasse, Reibkoeffizient entsprechend der festgelegten Gegenstandskategorie, z.B. Papier- und Plastikoberfläche, Stapelhöhe und Behälterform die jeweilige Zeitdauer nach Passieren des unteren Teils der Tasche 1 durch die vordere Bezugskante 7 des Behälters 5,9 ermittelt, bei der sich eine optimale Ausrichtung der Gegenstände 3 an der in Transportrichtung vorderen Behälterwand ergibt. Diese Werte werden so abgespeichert, dass mit den Variablen die dazu gehörende gespeicherte Zeitdauer ausgelesen werden kann. Beim operationalen Betrieb werden Gegenstandsmasse, Reibkoeffizient durch Unterscheidung der Gegenstandskategorie und Stapelhöhe in dem vorgesehenen Behälter 5,9 ermittelt und die mit diesen Werten entsprechend der eingesetzten Behälterart gefundene abgespeicherte Zeitdauer wird dann an die Steuerung des Öffnungsmechanismus 4 übertragen, so dass der Öffnungsmechanismus 4 zum richtigen Zeitpunkt, wenn die Abstände S0, S1, Su oder So erreicht sind, geöffnet wird. In FIG 3 ist die Speicherstruktur dargestellt, bei der die jeweilige Zeitdauer Ts in Abhängigkeit vom Reibkoeffizienten µ, vom Volumen V, von der Stapelhöhe h und von der Behälterart B abgespeichert ist.As in FIG. 1 and 2 shown are containers 5.9 with straight and differently shaped walls mounted one behind the other on container receptacles 6, which are transported in a transport device, not shown, in the direction of the arrow with a fixed speed. On top of them and the transport path several pockets 1 are arranged one behind the other, which are filled from above with flat objects 3. Both the pockets 1 and the containers 5 are inclined in the transport direction of the container 5.9. As a result, the objects 3 in the pocket 1 are oriented downwards and rest on the lower pocket wall 2. At the lower end of each pocket there is an opening mechanism 4, which holds the articles 3 in the closed state and which is opened when the respective article 3 is to enter a certain container 5 by means of gravity. The drives of the opening mechanisms 4 are not shown, their implementation and control represents no difficulty for a person skilled in the art. The opening time depends on the speed of the container 5, the mass of the objects 3, the friction coefficient between the objects 3 and the lower pocket wall 2, the time when the respective front reference edge of the container 5,9, in this case the upper front reference edge 7, during transport passes the lower part of the respective pocket 1, from the stack height of the already in the respective container 5.9 located stack 8 and the shape of the ih transport direction front container wall, where the objects 3 abut with its front edge from. The position of the reference edges 7 of the container 5.9 during transport is determined by the reference edge 7 is detected when it moves past a corresponding sensor and therefore due to the known constant speed can be determined when the reference edge 7, the known position of the lower part the respective bag 1 happens. This can also be solved more expensively by attaching a sensor for detecting the reference edge to the lower part of each pocket 1. Before the objects 3 enter the pockets 5, their dimensions are measured and their mass is determined indirectly by multiplying the volume by an average density. Although this is relatively inaccurate, but due to conducted test series for the control of the opening mechanisms 4 sufficiently accurate enough. The respective stack height is obtained from the summation of the thicknesses of the stacked objects 3, this value being corrected after passing through a measuring station for determining the stack height and corresponding deviation. In the run-up to the operation, the respective period of time after passing through the lower part of the bag 1 by the front reference edge 7 of the container 5.9 determined in test series depending on article mass, coefficient of friction according to the established item category, eg paper and plastic surface, stack height and container shape , in which results in an optimal alignment of the objects 3 on the front in the transport direction of the container wall. These values are stored in such a way that with the variables therefor belonging stored time period can be read. In operational operation, article mass, coefficient of friction is determined by distinguishing the article category and stack height in the intended bin 5,9, and the stored time found with these values according to the type of bin used is then transferred to the control of the opening mechanism 4 so that the opening mechanism 4 becomes the correct one Time, when the distances S 0 , S 1 , S u or S o are reached, is opened. In FIG. 3 the memory structure is shown, in which the respective time period T s is stored as a function of the coefficient of friction μ, the volume V, the stack height h and the container type B.

Da wesentlich die Differenzgeschwindigkeit zwischen den Taschen 1 und den Behältern 5 ist, können auch die Taschen 1 entsprechend der FIG 1 und 2 nach links oder auch beide bewegt werden. Der Bezugspunkt hat dann eine feste Position zu einer Tasche.Since the differential speed between the pockets 1 and the containers 5 is essential, the pockets 1 can also be designed according to the FIG. 1 and 2 be moved to the left or both. The reference point then has a fixed position to a pocket.

Möglich ist es auch, als Bezugskante die in Bewegungsrichtung hinteren oberen oder auch unteren Bezugskanten zu wählen. Weiterhin ist es möglich, wenn die Versuchsreihen vor dem operationalen Betrieb entsprechend zufriedenstellende Ergebnisse hinsichtlich der Stapelbilder gebracht haben, die Öffnungszeitpunkte auch nur in Abhängigkeit einzelner oder nur weniger variabler Parameter zu steuern.It is also possible to choose as a reference edge in the direction of movement rear upper or lower reference edges. It is also possible, if the test series before operating mode have given correspondingly satisfactory results with respect to the stack images to control the opening times only in response to individual or only less variable parameters.

Claims (4)

  1. Method for controlling the opening mechanism (4) of pockets (1) containing flat objects (3) for the transfer of the flat objects (3) by means of gravity into containers (5, 9) located below in a prone position, the pockets (1) and containers (5, 9) moving relative to one another, the pockets (1) and containers (5, 9) being inclined in the direction of the relative movement and I) prior to the operative transfer operation
    a) the time period after the passing of a fixed reference point for a pocket position by a reference edge (7) of a container (5, 9) being determined by experimentation for specified pocket and container speeds and for specified container types, after which the opening mechanism (4) of the respective pocket (1) is to open as a function
    - of the mass of the respective object (3) and/or of a category, which is associated with the object (3), the categories having been previously specified and for each category the friction coefficient of the bearing surfaces of objects of said category having been determined,
    - and of the stack height in the container (5, 9) and of the shape of the front container stack wall of the respective container type in the relative direction of transportation of the containers (5, 9),
    so that the object (3) is deposited so that it is aligned with said container stack wall,
    b) and the determined time periods being stored with the variables of which they are a function,
    II) during the operative transfer operation
    c) to transfer an object (3) from a pocket (1) into a container (5, 9) of a known container type
    - for said object (3) its mass and/or category
    - and the current stack height in the container (5, 9) are determined,
    d) the stored time period being determined based on
    - the mass of the object (3) and/or the friction coefficient stored for the category of object (3)
    - and the current stack height in the container (5, 9) and the container type,
    e) and the opening mechanism (4) of the pocket (1) being opened after this time period after the passing of the fixed reference point for the pocket position by the reference edge (7) of the container (5, 9).
  2. Method according to claim 1, characterised in that to determine the mass of the objects (3), their dimensions are measured and the volume determined therefrom is multiplied by a mean density.
  3. Method according to claim 1, characterised in that to determine the current stack height in each container (5, 9) the measured thicknesses of the objects (3) hitherto routed into said container (5, 9) are added together.
  4. Method according to claim 3, characterised in that when the containers (5, 9) are moving, they are conveyed past at least one measuring station to determine the stack height and the stack height obtained by adding together the individual measured thicknesses of the objects (3) is corrected by the measured value of the measuring station deviating therefrom.
EP06706986A 2005-03-26 2006-02-16 Method for controlling the opening mechanism of pockets provided with flat objects Not-in-force EP1868743B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005014020A DE102005014020B3 (en) 2005-03-26 2005-03-26 Method of controlling the opening mechanism of bags with flat objects
PCT/EP2006/001384 WO2006102954A1 (en) 2005-03-26 2006-02-16 Method for controlling the opening mechanism of pockets provided with flat objects

Publications (2)

Publication Number Publication Date
EP1868743A1 EP1868743A1 (en) 2007-12-26
EP1868743B1 true EP1868743B1 (en) 2009-07-08

Family

ID=36084379

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06706986A Not-in-force EP1868743B1 (en) 2005-03-26 2006-02-16 Method for controlling the opening mechanism of pockets provided with flat objects

Country Status (5)

Country Link
EP (1) EP1868743B1 (en)
CN (1) CN101146625A (en)
AT (1) ATE435709T1 (en)
DE (2) DE102005014020B3 (en)
WO (1) WO2006102954A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006025599B3 (en) * 2006-06-01 2007-09-06 Siemens Ag Controlling method for filling container with flat lying articles, comparing data of currently determined height profile with stored data of objectionable height profile, and filling corresponding container is stopped when data is matched
DE102006025601B3 (en) * 2006-06-01 2007-09-06 Siemens Ag Flat object e.g. letter, sorting device, has clipboards with rear walls having upper and lower parts that are folded in moving direction of respective cases and/or destination carriers from position that forms clipboards
FR2984772B1 (en) * 2011-12-22 2014-02-14 Solystic DEVICE AND METHOD FOR STACKING AND AUTOMATICALLY LOADING SINGLE-PANEL OBJECTS IN A MULTI-COMPARTMENT BIN, POSTAL SORTING MACHINE, AND POSTAL SORTING METHOD
FR2984774B1 (en) 2011-12-23 2014-02-14 Solystic FLAT OBJECT SORTING MACHINE HAVING HETEROGENEOUS PHYSICAL CHARACTERISTICS, AND METHOD OF SORTING THESE FLAT OBJECTS

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2679542B1 (en) * 1991-07-22 1995-02-24 Cga Hbs DEVICE FOR SPILLING AND STORING EDGE OF FLAT OBJECTS, PARTICULARLY PLIES LEAVING A SORTING MACHINE.
DE4323564A1 (en) * 1993-07-14 1995-01-19 Siemens Ag Sorting device, in particular for mail
FR2708488B1 (en) * 1993-08-03 1995-10-27 Thieriot Didier Object injector device in a postal sorting machine.
DE10305847B3 (en) * 2003-02-12 2004-08-19 Siemens Ag Sorting device for mail has individual mail items loaded in storage pockets of circulated temporary store before transfer to open mail containers dependent on their destination addresses

Also Published As

Publication number Publication date
WO2006102954A1 (en) 2006-10-05
ATE435709T1 (en) 2009-07-15
CN101146625A (en) 2008-03-19
DE102005014020B3 (en) 2006-09-21
DE502006004181D1 (en) 2009-08-20
EP1868743A1 (en) 2007-12-26

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