EP2470460B1 - Procédé et dispositif de séparation d'articles plats au moyen de deux séparateurs et d'un détecteur de longueur - Google Patents

Procédé et dispositif de séparation d'articles plats au moyen de deux séparateurs et d'un détecteur de longueur Download PDF

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Publication number
EP2470460B1
EP2470460B1 EP20100739933 EP10739933A EP2470460B1 EP 2470460 B1 EP2470460 B1 EP 2470460B1 EP 20100739933 EP20100739933 EP 20100739933 EP 10739933 A EP10739933 A EP 10739933A EP 2470460 B1 EP2470460 B1 EP 2470460B1
Authority
EP
European Patent Office
Prior art keywords
separator
transport
objects
transport element
transported
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.)
Not-in-force
Application number
EP20100739933
Other languages
German (de)
English (en)
Other versions
EP2470460A1 (fr
Inventor
Michael Schwarzbauer
Holger Schererz
Frank Voss
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP2470460A1 publication Critical patent/EP2470460A1/fr
Application granted granted Critical
Publication of EP2470460B1 publication Critical patent/EP2470460B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/46—Supplementary devices or measures to assist separation or prevent double feed
    • B65H3/52—Friction retainers acting on under or rear side of article being separated
    • B65H3/5246—Driven retainers, i.e. the motion thereof being provided by a dedicated drive
    • 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
    • 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
    • B65H2511/13—Thickness
    • 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
    • B65H2511/51—Presence
    • 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
    • B65H2511/51—Presence
    • B65H2511/514—Particular portion of element
    • 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
    • B65H2513/50—Timing
    • B65H2513/512—Starting; Stopping
    • 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
    • B65H2553/40—Sensing or detecting means using optical, e.g. photographic, elements
    • B65H2553/41—Photoelectric detectors
    • B65H2553/416—Array arrangement, i.e. row of emitters or detectors
    • 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
    • B65H2701/13—Parts concerned of the handled material
    • B65H2701/131—Edges
    • B65H2701/1311—Edges leading 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
    • 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 device and a method for separating flat objects, in particular flat mail items.
  • DE 10 350 623 B3 a device for separating flat objects is described.
  • the flat objects, a DE 10 350 623 B3 These are mail items, are transported upright and in a stacked position on a pair of trigger arms and pulled off the side of a subfloor belt in cooperation with the trigger arms.
  • the mail items are transported via a transport path which is delimited on one side by two endless conveyor belts 13, 14 connected in series and by a continuous retaining element 19 on the other side.
  • the downstream endless conveyor belt 14 pulls a mail item forward, wherein negative pressure increases the entrainment effect.
  • Two pickup rollers 15 take the mail piece along.
  • a line of light sensors measures whether a gap has occurred between two consecutive mail items transported by the endless conveyor belt 14.
  • a separation device is described with a plurality of separation stages. At least one singulation stage is operated in a start-stop mode.
  • An infeed device with an endless conveyor belt 18 pulls upright mail from a stack 11, cf. Fig. 1 , A first separating device 23 ") separates pieces of mail which partly overlap one another
  • This first separating device 23 has a transport element and an opposing retaining element, cf. Fig. 2 , Downstream of the first singler 23, a take-away unit 25 is mounted with two forward rollers ("drive roller 29, idler roller 27").
  • the mail items pass through the first separator and then the Vorziehaji 25 and then reach an alignment device ("aligner station 31"), a freewheeling track in the form of a U-shaped transport channel with two rigid side walls 33, 35 has.
  • an alignment device "aligner station 31"
  • a freewheeling track in the form of a U-shaped transport channel with two rigid side walls 33, 35 has.
  • the mailpiece passes through an arrangement with a plurality of sensors 105.
  • Each sensor 105 is e.g. B. a light barrier, which is interrupted by a mail item in the alignment device 31.
  • the alignment device 31 is adjoined by a second singleton singular apparatus 39, which likewise has a transport element and a retaining element.
  • EP 1090862 A2 (Fig. 6) is a "singulator sensor 105c" at the level of the second separator 39, a “take away sensor 105d” at the level of the second Vorziehong 41.
  • the signals from these light barriers 105c, 105d are used to a feeding conveyor belt 42a in the alignment device 31 to stop or restart.
  • US 6,550,764 B2 For example, a device having two singulators connected in series, an alignment device and a plurality of light barriers 201 to 231 will be described.
  • the light barriers 201 to 231 are interrupted by a mail item.
  • the first separator is operated in a start-stop mode depending on light barrier signals.
  • a device for separating flat mail items has a first separator A and second separator B.
  • Both separator A, B each comprise a suction belt 4 and 14, which is guided around a plurality of rollers.
  • suction bands 4, 14 suction openings are recessed, is sucked through the air.
  • the Suction belts 4, 14 are arranged so that a mail item is transported between the two suction belts 4, 14.
  • Opposite the suction belt 4 is a stop wall 9, opposite the suction belt 14 a stop wall 19. These stop walls 9, 19 support a second mailing back and prevent multiple mail items are withdrawn at once.
  • the two suction belts and the two stop walls 9, 19 are arranged so that the first suction belt - as seen in the transport direction of the mail pieces - is located to the left of the transported mail and the second suction belt 14 to the right. Accordingly, the first stop wall 9 seen in the transport direction to the right of the mail items and the second stop wall 19 to the left of the mail items.
  • An apparatus having the features of the preamble of claim 1 and a method having the features of the preamble of claim 10 are made EP 1 614 645 B1 known.
  • EP 1 614 645 B1 is an arrangement with a feed-out roller ("feed-out roller 8"), a first separator (“separation unit SP1”), a second separator (“separation unit SP2”) and two pairs of respective opposite transport rollers (“drawing roller 29" and "pinch roller 32" and “conveying roller 34” and “second pinch roller 39”).
  • the arrangement belongs to a photocopier or printer and occasionally paper sheets of the same size.
  • An overlapping detector (“overlapping detector 40, 41”) detects a double trigger, so that several sheets are withdrawn at once. This causes the transport rollers 29, 32 arranged upstream in the transporting direction to be stopped and the downstream transport rollers 34, 39 to pull out the foremost object.
  • the overlap detection facility of EP 1 614 645 B1 Overlapping to recognize the objects must all have the same length. If an object is longer than this target length, it consists of several objects.
  • EP 1 472 165 B1 Images of mailpieces are generated. By evaluating these images, it is determined whether an image shows the contour of an individual mailpiece or the contour of an object that consists of several overlapping mailpieces.
  • the invention has for its object to provide a device with the features of the preamble of claim 1 and a method having the features des.Oberbegriffs of claim 10, which can be used for objects of different lengths and leads to increased throughput through the second separator.
  • Each separator is configured to pull apart, and thereby singulate, a plurality of flat objects that at least partially overlap, in each case in a direction parallel to the object planes and in a drawing-apart plane.
  • the device is designed to transport an object from the first separator to the second separator.
  • the device is configured to transport the objects to be separated between the transport element and the retaining element der.lique singler.
  • Each article in this case sets a path between the transport element and the retaining element of the second singler. This path is longer than the dimension of the longest article viewed in the transport direction in which the articles are transported between the transport element and the retaining element of the second singler.
  • the overlap detection device is configured to measure the respective length of an object transported by the second separator at least two times, and then, when at least two lengths measured for the same object differ, to automatically decide that the Object consists of several overlapping objects.
  • the controller is configured to, when the overlap detection device has detected that a transporting object consists of a plurality of overlapping objects, to switch the second separator in a singulation mode, in which the second separator singulates overlapping objects.
  • the second singler is operable in a transport mode, in which the second singler transports objects.
  • the device according to the invention achieves a lower error rate and thus a higher proportion of correctly isolated objects, so that two individual singlers are connected in series. Two overlapping objects, which the first singler is unable to single, are separated from the subsequent second singler.
  • the second separator is switchable between a transport mode and a singulation mode. The second separator is then operated only in the singulation mode, if necessary, namely when it has been determined that the first separator has not separated two overlapping objects. Otherwise, the second separator is operated in transport mode and reaches a higher throughput of objects in transport mode than in the singulation mode.
  • the second separator can not singulate objects, but transports articles to a subsequent processing device.
  • the second singler operates in a mode optimized for singling.
  • transport mode the second separator operates at a higher throughput and operates in a mode optimized for transport.
  • the second singler takes over items from the first singler. This embodiment avoids the need to provide a separate transport route between the two singler. On such a separate transport route between the two singles overlapping objects that could not singulate the first singler, overlapping to the second singler be transported.
  • the two separators - as seen in the transport direction - spaced from each other.
  • the distance is so herring, however, that each item to be separated, which passes through the device with the two singles to held and taken at any time by the first singler or by the second singler or by both singles.
  • This embodiment makes it possible to grasp any object at any time, even if the first separator is stopped because the second separator just a double trigger. eliminated. Furthermore, it can be determined at any time, where, which object is located.
  • the solution-based device eliminates the need to specify a desired length for an object and the actual length of an object - that is the dimension of the object in the transport direction - compared with this target length to detect a double trigger.
  • a target length can be in a photocopier or printer pretend, but not z. B. in a sorting system for mail, because mail can have different lengths.
  • This advantage of length independence is achieved in that the transport element and the retaining element of the second separator pull apart two overlapping objects and the change in length caused thereby is measured.
  • the flat objects pass upright through the two singler and are transported upright between the transport element and the retaining element.
  • the object plane of each object is therefore vertical. This configuration causes dirt particles and abraded particles falling from the transport element past the objects down and do not fall on the objects.
  • the distance covered by an object during transport between the transport element and the retaining element of the second singler, as seen in the transport direction, is longer than the longest article. How long this distance is, can be determined by appropriate design of the second singler.
  • the second separator is configured such that this distance is at least 20% longer than the length of the longest object.
  • the transport element and / or the retaining element lie flat against the objects to be separated.
  • This embodiment causes a better separation, especially for larger objects, as a separation by individual roles that lie only selectively on an object to be separated.
  • the second separator is able to separate the objects by separating its transport element the leading object and its retaining element holds back the subsequent object.
  • the first singler can not do this.
  • objects on their way from the first to the second separator run through a curved section, which is preferably designed S-shaped. If two overlapping objects pass through this curved area, then their leading edges are already caught by the downstream second singler and their trailing edges are still caught by the upstream singler. Thereby can the distances between the leading edges and the trailing edges change, and a distance and / or an offset between the two objects occur. This causes the items are easily separated from the second singler.
  • This embodiment is effected by pulling apart each separator article in each case in a drawing-out plane.
  • These diverging planes are at a distance from each other, that is, the two singler are offset laterally relative to each other.
  • the two expansion planes may be parallel to each other or abut each other at an acute angle in a straight line.
  • the objects lie flat against the transport element and the retaining element of each singler.
  • a better separating effect is achieved than when the objects are merely pulled apart by rolling.
  • roles lie, then when the roles are crowned, only occasionally at the items to be separated.
  • a roll in the form of an ideal cylinder rests against an object in a straight line.
  • the second separator additionally has a pre-drawing element, which is arranged downstream of the transport element and retaining element.
  • This Vorziehelement is able to take an object temporarily and preferable.
  • the transport element of the second singler is stopped. Then the second singler is in singulation mode.
  • the second separator is switched back to the transport mode, which includes the step that the drive again the Transport element of the second singler moves.
  • the transport mode and the singling mode therefore preferably differ in that in the singulation mode, the transport element of the second singler prefers an article only up to this pre-drawing element and then stops, while the transport element is continuously driven in the transport mode.
  • the transport element of the second singler is therefore preferably operated in a start-stop mode, whereas in the transport mode it is driven continuously.
  • the device according to the invention is used to separate flat postal items. Each mail item extends in an object plane. The mailpieces are transported in a random arrangement to the device.
  • the mailpieces are processed by a sorting system with the aim of sorting the mailpieces depending on their respective delivery address. For this purpose, it is necessary to decipher the delivery address of each mail item and to eject the mail item as a function of the delivery address into a sorting end point of the sorting system.
  • the solution according to the device of the Auslanderüngsbeispiels is used to the To sort mail items so that the mailpieces can be aligned and oriented thereafter, then the respective delivery address can be deciphered and the mail can be properly ejected.
  • the same motor can abort the drives of both transport elements and both preferred.
  • the transport element and the drawing element of each singler each have their own drive, so that each singler can be controlled separately and separately transport or stop postal items.
  • the mail items are transported between the transport element and the retaining element of the first singler, then transported by the pre-pulling element of the first singler, then between the transport element and the retaining element of the second singler, and finally by the pre-pulling element of the second singler.
  • both the transport element and the retaining element of each singler lie flat against the mail item, that is to say over the entire length of the mail item or a considerable part of the mailpiece length. As a result, a better separation is achieved than when only two roles.
  • Friction coefficient is z. In Dubbel, Paperback for Mechanical Engineering, 18th ed., Section B15. The friction force is equal to the product of lateral force and coefficient of friction.
  • the coefficient of friction between a transport element and a mail item is greater than the coefficient of friction between a retaining element and the mail item.
  • the friction coefficient between the retaining element and the mail item is greater than the coefficient of friction between two mutually adhering mailpieces.
  • Each transport element comprises in the exemplary embodiment a plurality of superimposed endless conveyor belts, which is guided around at least two rollers and hereinafter referred to as "entraining conveyor belts".
  • Each of these rollers is rotatably mounted on a vertical shaft or a vertical axis.
  • all transport conveyor belts of a transport element are guided around the same three rollers. Between each two superimposed driving conveyor belts occurs on a slot.
  • the retaining element comprises a plurality of stationary components.
  • Each of these components comprises a straight element. This straight element lies flat against a postal item.
  • the fixed components of a retaining element are arranged one above the other.
  • the superimposed stationary components rest on a rake of a tape rest. This tape rest is fixedly mounted, z. B. on a singler base plate.
  • each stationary component comprises a bent deflection component.
  • each retaining element also comprises at least one endless conveyor belt, which is referred to below as the "retaining conveyor belt”.
  • This endless conveyor belt is guided around rollers, which are also mounted on vertical shafts.
  • each entrainment conveyor belt so each endless conveyor belt of a transport element, on projections which engage in corresponding recesses of the opposing retaining element, for example in the slot between two superimposed stationary components.
  • These projections and recesses extend in the longitudinal direction along the transport direction and are z. B. configured as a horizontal continuous lines.
  • the retaining element has projections which engage in recesses of the transport element.
  • the transport element of each singler comprises a plurality of stacked entrainment conveyor belts which engage in slots between each two stationary stationary components of the corresponding retention element, without the entrainment conveyor belts and stationary components touching each other.
  • a mail item which is transported between the transport element and the retaining element, receives thereby - seen in the transport direction - temporarily a contour in the form of a serpentine line.
  • the entrainment conveyor belts and fixed restraint components form two sawtooth lines.
  • each separator additionally comprises a suction device.
  • This aspirator sucks in air.
  • the air flows through recesses in each driving conveyor belt of the transport element and creates a negative pressure.
  • This negative pressure pulls an object (a single mail piece or several overlapping mail pieces) onto the entrainment conveyor belts and increases the lateral force and thus the frictional force between each entrainment conveyor belt and the mail item acting on the mailpiece.
  • the suction device generates a negative pressure between the retaining element and the mail item.
  • a sequence of recesses in the form of holes is embedded in each entrainment conveyor belt.
  • these recesses extend over the entire length of a driving conveyor belt.
  • An aspirator which abuts against the entrainment conveyor belts, then sucks air through these recesses as the recesses are passed past a suction chamber of the aspirator. Through the slot between two adjacent driving conveyor belts no air is sucked.
  • the transport rollers of the drawers are driven in opposite directions of rotation.
  • the mail items are transported upright to the first singler. Each flat postal item is therefore on one edge.
  • An underfloor conveyor transports the upright mailpieces in a transport direction which is parallel to the object planes or perpendicular to these article planes.
  • a stack of flat mail items is transported perpendicular to their subject levels on the first separator.
  • the mail items are transported in a direction parallel to their subject levels to the first singler, wherein a plurality of mailpieces usually overlap partially.
  • "overlapping" is to be understood in a direction perpendicular to the object levels of the flat mail items.
  • the mail items including the overlapping, get between the transport element and the retaining element of the first singler.
  • the transport element of the first separator takes along overlapping mailpieces. For example, the mail pieces adhere to the carrier conveyor belts and are moved by the retaining element to the first transport element.
  • the first singler pulls apart overlapping mailpieces. To effect this, the transport element moves faster than the retaining element of the first singler, so that a relative speed of the transport element relative to the retaining element occurs. In the exemplary embodiment, the retaining element does not move at all. Because the friction coefficient and thus the frictional force between a mail item and the transport element is even greater, preferably no slippage occurs between the mail item and the transport element. The optionally generated negative pressure enhances this effect.
  • Each singler thereby causes flat upright mailpieces to be pulled apart in a vertical, outer, pull-out plane.
  • the respective article planes of the flat mailpieces are arranged parallel to these diverging planes.
  • Each separator also has in the embodiment, a Vorziehelement with two driven transport rollers.
  • the two transport rollers are rotated at the same rotational speed in different directions of rotation. At each point of contact, the two transport rollers effect the same transport vector.
  • These two transport rollers each have a grippy outer surface and sit on parallel and driven rollers.
  • the pre-drawing element is arranged downstream of the transport element and the retaining element of the singler.
  • the transport rollers are spring-loaded so that compression springs press the two transport rollers against each other, but a mail item is able to push the transport rollers apart when the two transport rollers grip the mail item and advance it.
  • the first separator also has the first drawing element with the two transport rollers, which is arranged downstream of the transport element and the retaining element.
  • a Mail is transported between these two transport rollers through, with both transport rollers grasp the mail temporarily.
  • the transport element and the retaining element are stopped.
  • the transport rollers pull out a mail item between the transport element and the retaining element. If this item of mail partially overlaps with a subsequent item of mail, the transport rollers only grasp the leading item of mail, but not the subsequent item of mail.
  • the subsequent mail item is retained by the transport element and by the retaining element. Once it is determined that the trailing edge of the leading mail item has passed through the transport rollers, at least the transport element is rotated again and transports the subsequent mail item to the transport rollers.
  • the first separator thus operates in a start-stop mode.
  • the transport element is started continuously and stopped again.
  • the transport rollers of the Vorziehelements are rotated continuously.
  • a light barrier or other suitable sensor measures the events that a leading edge of a mailpiece has reached the two transport rollers of the first singler and that the trailing edge has passed the transport rollers.
  • the mail item interrupts the light beam emitted by the transmitter of the light barrier.
  • a single item of mail which is transported by the transport element of the first singler, rotates in one embodiment with the retaining element.
  • the retaining element stops.
  • two overlapping mailpieces are pulled apart by the interaction of the transport element and the retaining element.
  • the second separator preferably operates in the same way, as long as the second separator also works in the singulation mode.
  • the transport element of the second singler is on the other side of the transport path over which the mail items are transported, arranged as the transport element of the first singler.
  • the transport element of the first singler as seen in the transport direction - arranged to the left of the transport path, so the transport element of the second singler is right of the transport path. Accordingly, the retaining elements of the two singler be mounted on different sides of the transport path.
  • This embodiment causes an improved separation.
  • Two postal items partially overlap before they reach the first separator.
  • the leading mail item rests on the retaining element of the first singler, the subsequent mail item on the transport element of the first singler.
  • the transport element is capable of transporting the subsequent mail item to the front relative to the leading mail item, thereby causing a singling.
  • the forwardly drawn subsequent mail item gets caught in a tab or a viewing window or similar component of the leading mailpiece and can not be pulled further forward, so that the first singler can not separate these two mailpieces.
  • the second separator will pull the leading mail item forward in relation to the subsequent mail item in this constellation, thereby causing the separation.
  • the entanglement between the two postal items automatically dissolves in that the second separator initiates forces on another side of the object, which consists of the entangled postal items, than the first separator.
  • the first separator comprises the driven first transport element 10.1, which consists of a plurality of superimposed driving conveyor belts, and the first retaining element 2.
  • Two compression springs 28.1, 28.2 push the first retaining element 2 so far against the entrainment conveyor belts of the first transport element 10.1 that only one predetermined minimum distances between the transport element 10.1 and the retaining element 2 remains.
  • a drive motor 15 rotates the transport roller 3.1 or both transport rollers 3.1, 3.2 of the first drawing element 3.
  • the transport rollers 3.1, 3.2 rotate in one embodiment as fast as the driving conveyor belts of the first transport element 10.1.
  • the control device 5 controls the drive motors, for the transport elements and Vorziehiata the two singler and thereby causes this start-stop operation.
  • the photoelectric sensors transmit signals to this control device 5, and the controller 5 processes these signals.
  • Fig. 1 are still the two expansion planes AE.1, AE.2 shown. Between these two expansion planes AE.1, AE.2, a lateral offset V occurs.
  • the two vertical expansion planes AE.1, AE.2 are parallel to each other, so that the lateral offset V remains constant over the entire extent of the expansion planes AE.1, AE.2.
  • the entrainment conveyor belts of the first transport element 10.1 are guided around the three rollers 30, 31 and 32 in the embodiment.
  • a drive motor 16 rotates the roller 32 and thus the first transport element 10.1.
  • the control device 5 is able to turn both drive motors 15, 16 on and off again.
  • the first singler further comprises a suction chamber 50.
  • Each entrainment conveyor belt of the first transport element 10. 1 is guided past an opening of this suction chamber 50.
  • the suction chamber 50 sucks air through this opening and through recesses in the driving conveyor belts of the transport element 10.1.
  • Fig. 2 shows in detail and in the plane A - A of Fig. 1 in that the first transport element 10.1 consists of a plurality of individual transport conveyor belts lying one above the other.
  • the first retaining element 2 has a plurality of stationary components arranged one above the other, between which the rake 27 of a band support 18 lies.
  • the individual components of the first retaining element 2 run over a respective projection of the rake 27.
  • the first retaining element 2 has projections which bear against a mail item.
  • the entrainment conveyor belts of the first transport element 10.1 protrude at a distance C beyond the projections of the first retaining element 2.
  • the first retaining element 2 is mounted on the separator base plate 19.
  • the first retaining element comprises 2 a plurality of stationary components arranged one above the other, which rest on a rake 27 of a band support 18.
  • the band support 18 is fixedly mounted on the singler base plate 19.
  • the three rollers 30, 31, 32 around which the entrainment conveyor belts of the first transport element 10.1 are guided are mounted on a mounting plate 20.
  • the mounting plate 20 is. preferably mounted movably such that an actuator 22 is able to move the mounting plate 20 in a direction of displacement VR perpendicular to the transport direction T and perpendicular to the transport path, cf. Fig. 1
  • the singler base plate 19, however, is mounted stationary. Because the mounting plate 20 can be moved relative to the separator base plate 19, the distance between the first transport element 10.1 and the first retaining element 2 can be changed, whereby wear of the first transport element 10.1 can be compensated.
  • the actuator 22 rotates at least two toothed belts, and these toothed belts rotate at least two spindles. These spindles engage in corresponding fastening elements of the mounting plate 20.
  • a rotation of the spindles 21 causes the mounting plate 20 performs a linear movement, perpendicular to the transport direction T, in which transported the first separator postal items.
  • the actuator 22 is driven by the control device 5 and is able to rotate the spindles 21.
  • the distance traveled by a mail item during transport between the transport element and the retaining element of the second singler, as seen in the transport direction, is longer than a mailpiece of maximum length.
  • a mail item Ps of maximum length is shown.
  • the two transport rollers 8.1, 8.2 of the second drawing element 8 pull the separated mail items between the second transport element 10.2 and the second retaining element 7.
  • the transport element 10.1 of the first singler - as seen in the transport direction T - arranged to the left of the conveyor track, the transport element 10.2 of the second singler to the right of the conveyor track.
  • the second louzeier can be switched back and forth in the embodiment between two modes, namely a singulation mode and a transport mode.
  • the second separator has a light barrier 11 with a transmitter 11.1 and a receiver 11.2.
  • This photocell 11 determines whether the leading edge an "object" has reached the transport rollers 8.1, 8.2.
  • object refers both to a single item of mail as well as to several items of mail that partially or completely overlap.
  • the second singler works just like the first singler in the start-stop mode.
  • the second transport element 10.2 transports an object up to, the transport rollers 8.1, 8.2 of the second Vorziehelements 8. Once the leading edge of this object, the transport rollers 8.1, 8.2. has reached, the second transport element 10.2 is stopped.
  • the further driven transport rollers 8.1, 8.2 pull out the leading mail item between the second transport element 10.2 and the second retaining element 7.
  • the second transport element 10.2 and the second retaining element 7 hold back a subsequent mail item. As a result, overlapping mail pieces are pulled apart and separated from each other.
  • the second singler transports a mail piece without being stopped and without exerting a singling action.
  • the second separator is operated in transport mode until it is determined that the first separator has not completely separated two overlapping mail items. Only then is the second separator switched to the singulation mode, and these overlapping mailpieces are singled out. As soon as all these isolated mail items have completely left the second separator, the second separator is switched back to the transport mode.
  • the second separator is then switched from the transport mode to the singulation mode if it is determined that an object in the second separator consists of several overlapping mailpieces, and the leading edge of this object, that is, the leading edge of the foremost mail item that has reached transport rollers 8.1, 8.2. This reaching the transport rollers 8.1, 8.2 is detected by the light barrier 11.
  • the second separator is redesigned at exactly this moment of reaching. The foremost item of mail is still transported to the extent that the transport rollers 8.1, 8.2 grasp this front-end postal item securely.
  • the second separator is thereby switched over from the transport mode to the singulation mode, that the control device 5 stops the drive motor 9 of the second transport element 10.2. Then pull the transport rollers 8.1, 8.2, the leading mail item between the second transport element 10.2 and the second retaining element 7, both of which are stopped out. The subsequent Pöst legislative is retained by the second transport element 10.2 and the second retaining element 7.
  • the control device 5 stops the drive motors 16 (for the first transport element 10.1) and 15 (for the first pre-pulling element 3).
  • This stopping of the first singler is preferably carried out simultaneously with the step of switching the second singler to the singling mode. Only when all previously overlapping mail items have completely left the second separator, the Steuerungseinrichtüng 5 starts the first separator again.
  • the control device 5 simultaneously switches the second separating device back into the transport mode.
  • a light barrier determines that point in time at which the trailing edge of the leading, now separated mail item has passed this light barrier and thus a gap occurs between the preceding and the now following mail item.
  • This photocell can be the photocell 1 or a light barrier of the light barrier arrangement 4 described below or a further light barrier, which is arranged downstream of the light barrier 14.
  • the discovery of the gap triggers the steps that the controller 5 switches the second separator again in the transport mode and the drive motor 9 turns on again.
  • the second transport element 10.2 transports mail items continuously to the transport rollers 8.1, 8.2.
  • the first resumes its start-stop operation.
  • the control device 5 starts the drive motors 16 (for the first transport element 10.1) and 15 (for the first feed element 3) again.
  • the second separator thus operates only in start-stop operation when a double trigger is detected, and otherwise in a continuous transport mode. This achieves a significantly higher throughput. In addition, the wear-prone start-stop operation is reduced to the required minimum.
  • the apparatus further comprises a light barrier arrangement 4.
  • This light barrier arrangement 4 has a transmitter line 4.1 with a plurality of transmitters and a receiver line 4.2 with multiple receivers, which are arranged one behind the other.
  • the transmitter line 4.1 and the receiver line 4.2 extend over the length of the entire first singler and the entire second singler.
  • the light barrier arrangement 4 monitors at least the second transport element 10.2 and the second retaining element 7.
  • the transmitter line 4.1 comprises at least one row with a multiplicity of transmitters which emit parallel light beams.
  • the receiver row 4.2 comprises at least one row with a plurality of receivers that receive the light beams received by the broadcasters. It is possible that the transmitter line 4.1 and the receiver line 4.2. each comprise a plurality of individual lines arranged one above the other. As a result, the light barrier arrangement 4 is able to recognize different mailpieces with different heights.
  • Each mail item interrupts each light beam from a transmitter if that light beam strikes the mailpiece.
  • a light beam from a transmitter that is not interrupted by a mail item strikes the corresponding receiver.
  • a sequence of measuring times is specified.
  • the time interval between two successive measurement times is z.
  • B. varies inversely proportional to the transport speed of the second singler or remains constant. The time interval is so small that in each period in which a mail item passes through the second separator, several measurement times fall.
  • each receiver of the receiver line 4.2 delivers exactly one of the two possible signals "light beam has hit the receiver" or "no light beam has hit", ie light beam is interrupted by a mailpiece.
  • a sequence of objects in the second separator is detected for each measurement time, wherein an object consists of a single item of mail or of a plurality of at least partially overlapping items of mail. Between each two successive objects is in each case a gap through which passes at least one light beam.
  • Each object interrupts at least one light beam.
  • the distance between two successive gaps is equal to the length of the transported object between these two gaps. This gap distance is calculated approximately as a distance - between the two receivers of the receiver line 4.2, which each hit a light beam.
  • the receiver line 4.2 transmits measurement signals to the control device 5.
  • the control device 5 evaluates these measurement signals and decides whether or not an object consisting of several overlapping mailpieces is transported in the second separator.
  • This light barrier arrangement 4 thus measures the length of the same object for at least two measuring times, while the second separating animal is in the transport mode and the second transport item 10.2 is transporting this object onto the transport rollers 8.1, 8.2 of the second drawing element 8.
  • a relative speed occurs between the second transport element 10.2 and the second retaining element 7.
  • the second retaining element 7 is not driven, but rotated by mail, or consists of stationary components.
  • a plurality of overlapping mailpieces are pulled apart, and an object consisting of a plurality of mailpieces changes its length as it is transported through the second separator. If the length of the object varies during transport, the object consists of several overlapping mailpieces.
  • the second separator is switched to the singulation mode as soon as the front edge of the object reaches the light barrier 11. This front edge is formed by the front edge of the leading item of mail of the object.
  • the retaining element 7 and the transport element 10.2 of the second singler hold back each subsequent mail item of the object.
  • the second separator may also have a camera which generates a lateral image of the object.
  • the contour of the object in the image is evaluated. If this contour shows several rectangles, the object comprises several mailpieces. This configuration eliminates the need for a relative speed between the second transport element 10.2 and the second retaining element 7 is generated.
  • the transport path which is traversed by the mail items, consists of two straight sections and a curved transition region.
  • the first straight path is formed by the first transport element 10.1 and the first retaining element 2 of the first singler, the second straight distance by the second transport element 10.2 and the second retaining element 7 of the second singler.
  • the second straight path is laterally offset relative to the first path, so that the transition region is curved, preferably curved in an S-shape. In Fig. 1 this lateral offset V is exaggerated.
  • the first singler is able to pull objects apart in a first plane of extension.
  • the second singler is able to pull objects apart in a second plane of extension.
  • These two expansion planes are arranged parallel to each other in the embodiment and have a distance V from each other.
  • An element 7.1 acts as a deflecting element. When an article is transported from the first singler to the second singler, the deflecting element 7.1 deflects this article from the first to the second unwinding plane.
  • the deflecting element 7. 1 is preferably from a plurality of superimposed deflection components, in this case the curved components of the second retaining element 7.
  • the two diverging planes meet at an acute angle.
  • the two expansion planes intersect in a straight line. If a mail item is transported from the first singler to the second singler, the mail item is rotated about an axis of rotation which lies parallel to this cut line. This rotation often improves the separating effect in addition.
  • the wear of the entrainment conveyor belts of the transport elements 10.1, 10.2 and / or the components of the retaining elements 2, 7 is monitored, and at least one element is automatically readjusted. Illustrate this readjustment Fig. 1 to Fig. 4 exemplary of the first transport element 10.1 of the first singler.
  • a distance sensor 12.1, 12.2, 12.3 continuously measures the distance between itself and that surface of the first entrainment conveyor belt 10.1, which faces the mailpieces to be separated. The singulation of mail items causes particles to be rubbed off the facing surface of the conveyor belt 10.1 and thereby reduces the distance between the first transport element 10.1 and the first retaining element 7. Reduced accordingly
  • the mounting plate 20 is moved with the first transport element 10.1 transversely to the transport direction in the direction of displacement VR on the first retaining element 2.
  • the actuator 22 rotates the spindles 21 so that a desired gear ratio between the rotation of the actuator 22 and the displacement of the mounting plate 20 is effected.
  • a controller 40 controls this actuator 22. At the controller 40 signals from a distance sensor are transmitted. The controller 40 uses these measurement signals as well as a setpoint to calculate the setting commands to the actuator 22.
  • the Fig. 2 shows, a distance tion sensor 12.1 measures the distance B between itself and that surface of the driving conveyor belts of the first transport element 1-0.1, which faces the first retaining element 2 and thus the mailpieces to be separated.
  • the distance sensor 12.1 sends a laser beam through a recess in the first retaining element 2 perpendicular to the surface of the first transport element 10.1.
  • the wear of the driving conveyor belts of the first transport element 10.1 increases the distance B.
  • the mounting plate 20 in Fig. 1 down or in Fig. 2 moved to the left on the first retaining element 2 and thus to the distance sensor 12.1.
  • a distance sensor 12.1 measures directly the distance B.
  • the mounting plate 20 is moved so that this distance remains constant.
  • a problem of this embodiment is that a distance measurement is difficult or even impossible when a Mail item between the first transport element 10.1 and the first retaining element 2 is located.
  • a distance sensor 12.2 is used.
  • the distance sensor 12.2 measures the distance D between the surface of the first entraining conveyor belt 10.1 and the distance sensor 12.2, in a region in which the first entrainment conveyor belts of the first transponding element 10.1 are guided around the roller 32 and not first retaining element 2 is opposite.
  • Fig. 3 shows a preferred embodiment that allows a permanent measurement and a simple control.
  • two deflecting mirrors 13.1, 13.2 are used. Between the two deflecting mirrors 13.1, 13.2 occurs the constant distance E, between the distance sensor 12.2 and the deflecting mirror 13.1 the distance F. The distance F change when the mounting plate 20 is moved. If the mounting plate 20 is displaced in the direction of displacement VR, then the distance F is reduced. Between the deflection mirror 13.2 and the surface of the first entraining conveyor belt 10.1, the distance D is increased, which increases due to the wear of the entrainment conveyor belts of the first transport element 10.1.
  • the distance sensor 12.2 measures the total distance D + E +. F.
  • the range sensor 12.2 provides a voltage value that depends on the measured distance.
  • the distance sensor 12.2 is mounted stationary.
  • the first transport element 10.1 and the two deflecting mirrors 13.1, 13.2 are mounted on the mounting plate 20 and can thereby be displaced relative to the distance sensor 12.2.
  • the wear of the first transport element 10.1 increases the distance D.
  • a displacement of the mounting plate 20 in the direction of displacement VR causes the distance F to be reduced.
  • the mounting plate 20 is displaced so that the total distance D + E + F remains constant. This causes the displacement of the mounting plate 20 just compensated for the wear of the first transport element 10.1.
  • the wear of the surface of the first retaining element 2, however, is preferably automatically compensated by the fact that the first retaining conveyor belt 2 is pressed against the belt support 18.
  • Fig. 4 shows a third embodiment to monitor and adjust the first transport element 10.1.
  • This embodiment measures a distance by means of at least one measuring lever 17.
  • at least one measuring lever 17 is pressed against the surface of a driving conveyor belt of the first transport element 10.1, in the area of the roller 32 and thus again outside a region in which a mailpiece is located. It is possible that several measuring levers arranged one above the other are pressed against one take-off conveyor belt each.
  • a roller 23 or a rotatably mounted ball 23 is in constant contact with the surface of the driving conveyor belt.
  • this constant contact is caused by the fact that the measuring lever 17 is rotatably mounted on a shaft 24 and a tension spring 26 pulls the free arm 17.1 of the measuring lever 17 to itself.
  • the roller or ball 23 is seated at the end of the other arm 17.2 of the measuring lever 17.
  • a distance sensor 12.3 measures the distance H between itself and a point of the free arm 17.1 of the measuring lever 17.
  • the distance sensor 12.3 is mounted stationary, so that the first transport element 10.1, which is mounted on the mounting plate 20, is displaceable relative to the distance sensor 12.3.
  • the surface of the transport element 10.1 can thus be optimized for separation by pulling apart, the Surface of the measuring lever 17 for measuring the route length.
  • the wear of a driving conveyor belt of the first transport element 10.1 causes the measuring lever 17 is rotated about the axis 24 and thereby the distance H between the free arm 17.1 and the distance sensor 12.3 changed.
  • the measuring lever 17 is rotated by the wear in a clockwise direction, and the measured distance H decreases.
  • the reduction of the distance H is proportional to the wear of this entrainment conveyor belt of the first transport element 10.1.
  • the proportionality factor H1: H2 can be determined by suitable positioning of the sensor 12.2 relative to the free arm 17.1.
  • H1 is the distance between the contact point of the roller 23 with the first transport element 10.1 and the shaft 24.
  • H2 is the distance between the Auftician of the distance sensor 12.3 and the shaft 24th
  • H1 H2
  • the first transport element 10.1 is mounted on a sliding mounting plate 20, and the first retaining element 2 is fixedly mounted.
  • This embodiment has the advantage that a mail item which is transported by the transport element and bears against the retaining element always impinges on the advancing device in the gap between the two transport rollers 3.1, 3.2.
  • the first retaining element 2 is mounted on the sliding mounting plate 20, and the first transporting element 10.1 is mounted on a stationary base plate 19. Also in this alternative embodiment, the wear of the first transport element 10.1 is measured, and as described above with a Distance sensor 12.1, 12.2, 12.3.
  • the controller 40 controls the actuator 22, and the actuator 22 moves the mounting plate 20 with the first retaining element 2 so that the distance between the first retaining element 2 and the first transport element 10.1 is reduced. Also in this way the wear of the first transport element 10.1 is compensated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sorting Of Articles (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Controlling Sheets Or Webs (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)

Claims (11)

  1. Installation d'individualisation d'objets plats, dans laquelle
    chaque objet s'étend dans un plan d'objet et l'installation comprend
    - un premier individualiseur,
    - un deuxième individualiseur,
    - un dispositif ( 4 ) de détection de chevauchement et
    - un dispositif ( 5 ) de commande,
    chaque individualiseur est conformé pour écarter, en les tirant respectivement dans une direction parallèlement aux plans d'objet, plusieurs objets qui se chevauchent, au moins en partie, et ainsi les individualiser,
    l'installation est conformée pour transporter un objet du premier individualiseur au deuxième individualiseur,
    le dispositif ( 4 ) de détection de chevauchement est conformé pour contrôler automatiquement si une entité transportée par le deuxième individualiseur est constituée d'un objet unique ou de plusieurs objets qui se chevauchent et
    le dispositif ( 5 ) de commande est conformé pour, si le dispositif ( 4 ) de détection de chevauchement a détecté qu'une entité transportée est constituée de plusieurs objets se chevauchant,
    mettre le deuxième individualiseur dans un mode d'individualisation, dans lequel le deuxième individualiseur individualise des objets qui se chevauchent et
    le deuxième individualiseur peut fonctionner, en outre, dans un mode de transport, dans lequel le deuxième individualiseur transporte des objets,
    le deuxième individualiseur comprend
    - un élément ( 10.2 ) de transport,
    - un élément ( 7 ) de retenue et
    - un entraînement ( 9 ) de l'élément ( 10.2 ) de transport,
    l'installation est conformée pour transporter les objets à individualiser entre l'élément ( 10.2 ) de transport et l'élément ( 7 ) de retenue du deuxième individualiseur, l'entraînement ( 9 ) est conformé pour entraîner l'élément ( 10.2 ) de transport,
    de manière à ce que l'élément ( 10.2 ) de transport se déplace par rapport à l'élément ( 7 ) de retenue et provoque ainsi un écartement en les tirant d'objets se chevauchant, au moins en partie,
    caractérisée en ce que
    l'élément ( 10.2 ) de transport et l'élément ( 7 ) de retenue sont conformés de manière à ce que le chemin parcouru par un objet entre l'élément ( 10.2 ) de transport et l'élément ( 7 ) de retenue soit plus long que l'étendue la plus grande d'un objet dans la direction ( T ) de transport et
    le dispositif ( 4 ) de détection de chevauchement est conformé
    pour mesurer, en au moins deux instants, la longueur respective d'une même entité, qui est transportée entre l'élément ( 10.2 ) de transport et l'élément ( 7 ) de retenue du deuxième individualiseur et
    si au moins deux longueurs mesurées pour la même entité diffèrent l'une de l'autre,
    décider automatiquement que l'entité est constituée de plusieurs objets qui se chevauchent.
  2. Installation suivant la revendication 1,
    caractérisée en ce que
    le dispositif ( 4 ) de détection de chevauchement a une ligne ( 4.1 ) d'émetteurs ayant plusieurs émetteurs et une ligne ( 4.2 ) de récepteurs ayant plusieurs récepteurs,
    chaque émetteur de la ligne ( 4.1 ) d'émetteurs est conformé pour émettre un faisceau lumineux, qui arrive sur au moins un récepteur de la ligne ( 4.2 ) de récepteurs ou qui est interrompu par un objet transporté dans le deuxième individualiseur,
    chaque récepteur de la ligne ( 4.2 ) de récepteurs est conformé pour mesurer si un faisceau lumineux arrive ou non sur le récepteur.
  3. Installation suivant la revendication 1 ou la revendication 2,
    caractérisée en ce que
    le dispositif ( 5 ) de commande est conformé,
    pour arrêter, en temps que sous-stade, lorsque le deuxième individualiseur passe dans le mode d'individualisation, l'entraînement ( 9 ) de l'élément ( 10.2 ) de transport.
  4. Installation suivant l'une des revendications 1 à 3,
    caractérisée en ce que
    le deuxième individualiseur comprend
    - un capteur ( 11 ) de position et
    - un élément ( 8 ) d'avance,
    l'élément ( 8 ) d'avance est conformé pour saisir de temps en temps un objet et pour le transporter,
    le capteur ( 11 ) de position est conformé pour détecter si ou non un objet a été saisi par l'élément ( 8 ) d'avance et le dispositif ( 5 ) de commande est conformé pour arrêter, en réaction à l'événement que le capteur ( 11 ) de position a détecté une saisie d'un objet, l'entraînement ( 9 ) de l'élément ( 10.2 ) de transport et mettre fin ainsi au passage du deuxième individualiseur dans le mode d'individualisation.
  5. Installation suivant l'une des revendications 1 à 4,
    caractérisée en ce que
    le premier individualiseur comprend aussi
    - un élément ( 10.1 ) de transport et
    - un élément ( 2 ) de retenue,
    l'installation est conformée pour
    transporter un objet le long d'une voie de transport dans une direction ( T ) de transport,
    la voie de transport s'étendant
    - entre l'élément ( 10.1 ) de transport et l'élément ( 2 ) de retenue du premier individualiseur et
    - entre l'élément ( 10.2 ) de transport et l'élément ( 7 ) de retenue du deuxième individualiseur et
    l'élément ( 10.1 ) de transport du premier individualiseur est disposé d'un côté autre de la voie de transport que l'élément ( 10.2 ) de transport du deuxième individualiseur.
  6. Installation suivant l'une des revendications 1 à 5,
    caractérisée en ce que
    l'élément ( 10.2 ) de transport du deuxième individualiseur comprend un tapis convoyeur sans fin entraîné,
    l'entraînement ( 9 ) est conformé pour faire tourner ce tapis convoyeur sans fin et
    le dispositif ( 5 ) de commande est conformé pour
    - lorsque le deuxième individualiseur passe du mode de transport au mode d'individualisation, arrêter l'entraînement ( 9 ) et ainsi arrêter ce tapis convoyeur sans fin et
    - lorsque le deuxième individualiseur passe du mode d'individualisation au mode de transport, activer l'entraînement ( 9 ) et déclencher ainsi un mouvement de transport de ce tapis convoyeur sans fin.
  7. Installation suivant l'une des revendications 1 à 6,
    caractérisée en ce que
    chaque individualiseur est conformé pour
    écarter, en les tirant parallèlement aux plans d'objet dans respectivement un plan d'écartement, plusieurs objets qui se chevauchent, au moins en partie, et ainsi les individualiser et
    les individualiseurs sont disposés de manière
    à produire un décalage latéral entre les deux individualiseurs,
    de manière à produire une distance ( V ) entre les deux plans d'écartement.
  8. Installation suivant l'une des revendications 1 à 7,
    caractérisée en ce que
    l'installation comprend un capteur ( 11 ) de position, le capteur ( 11 ) de position est conformé pour détecter que le bord avant - considéré dans la direction ( T ) de transport - d'une entité transportée par le deuxième individualiseur a atteint une position en aval du deuxième individualiseur et
    le dispositif ( 5 ) de commande est conformé pour, lorsque le capteur ( 11 ) de position a détecté qu'une entité transportée dans le deuxième individualiseur est constituée de plusieurs objets,
    faire passer le deuxième individualiseur dans le mode d'individualisation à l'instant ou après l'instant où le capteur ( 11 ) de position a détecté que le bord avant d'une entité transportée a atteint la position.
  9. Installation suivant l'une des revendications 1 à 8,
    caractérisée en ce que
    le dispositif ( 5 ) de commande est conformé, en outre, pour arrêter le premier individualiseur, dès que le dispositif ( 5 ) de commande fait passer le deuxième individualiseur dans le mode d'individualisation.
  10. Procédé d'individualisation d'objets plats, dans lequel chaque objet s'étend dans un plan d'objet et on effectue le procédé en utilisant un premier individualiseur et un deuxième individualiseur et il comprend les procédés suivant lesquels
    - chaque individualiseur écarte, en les tirant dans respectivement une direction parallèlement aux plans d'objet, plusieurs objets qui se chevauchent, au moins en partie,
    - on fait passer d'abord un objet dans le premier individualiseur, puis on le transporte au deuxième individualiseur et on le fait passer ensuite dans le deuxième individualiseur,
    - on contrôle automatiquement qu'une entité transportée par le deuxième individualiseur est constituée d'un objet unique ou de plusieurs objets qui se chevauchent,
    - et, lorsqu'il a été constaté automatiquement qu'une entité transportée est constituée de plusieurs objets se chevauchant, au moins en partie,
    - on fait passer le deuxième individualiseur dans un mode d'individualisation, dans lequel le deuxième individualiseur individualise des objets qui se chevauchent et
    - on fait passer le deuxième individualiseur, après l'individualisation de ces objets, dans un mode de transport, dans lequel le deuxième individualiseur transporte des objets,
    le deuxième individualiseur comprend
    - un élément ( 10.2 ) de transport et
    - un élément ( 7 ) de retenue,
    on transporte les objets individualisés entre l'élément ( 10.2 ) de transport et l'élément ( 7 ) de retenue du deuxième individualiseur,
    lorsque le deuxième individualiseur se trouve dans le mode d'individualisation, on entraîne l'élément ( 10.2 ) de transport,
    de manière à déplacer l'élément ( 10.2 ) de transport par rapport à l'élément ( 7 ) de retenue et à provoquer ainsi un écartement en les tirant d'objets se chevauchant, au moins en partie,
    caractérisé en ce que
    on transporte chaque objet sur un chemin entre l'élément ( 10.2 ) de transport et l'élément ( 7 ) de retenue du deuxième individualiseur, le chemin étant plus grand que l'étendue la plus grande d'un objet à individualiser dans la direction ( T ) de transport et
    le contrôle du point de savoir si une entité est constituée d'un ou de plusieurs objets
    comprend les stades suivant lesquels
    - à au moins deux instants, on mesure la longueur d'une même entité, qui est transportée par le deuxième individualiseur se trouvant dans le mode de transport et
    - lorsqu'au moins deux longueurs, qui ont été mesurées pour la même entité transportée par le deuxième individualiseur, diffèrent l'une de l'autre, il est décidé automatiquement que cette entité est constituée de plusieurs objets qui se chevauchent.
  11. Procédé suivant la revendication 10,
    caractérisé en ce que
    lorsque le deuxième individualiseur passe dans le mode d'individualisation, on arrête l'élément ( 10.2 ) de transport.
EP20100739933 2009-08-27 2010-08-04 Procédé et dispositif de séparation d'articles plats au moyen de deux séparateurs et d'un détecteur de longueur Not-in-force EP2470460B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009039062A DE102009039062A1 (de) 2009-08-27 2009-08-27 Vorrichtung und Verfahren zum Vereinzeln von flachen Gegenständen mittels zweier Vereinzeler und einem Längendetektor
PCT/EP2010/061344 WO2011023506A1 (fr) 2009-08-27 2010-08-04 Procédé et dispositif de séparation d'articles plats au moyen de deux séparateurs et d'un détecteur de longueur

Publications (2)

Publication Number Publication Date
EP2470460A1 EP2470460A1 (fr) 2012-07-04
EP2470460B1 true EP2470460B1 (fr) 2015-05-20

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EP20100739933 Not-in-force EP2470460B1 (fr) 2009-08-27 2010-08-04 Procédé et dispositif de séparation d'articles plats au moyen de deux séparateurs et d'un détecteur de longueur

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US (1) US8113337B2 (fr)
EP (1) EP2470460B1 (fr)
DE (1) DE102009039062A1 (fr)
WO (1) WO2011023506A1 (fr)

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Publication number Priority date Publication date Assignee Title
JP4469671B2 (ja) 2004-07-09 2010-05-26 株式会社東芝 紙葉類取り出し装置
DE102007057497A1 (de) * 2007-11-29 2009-06-10 Siemens Ag Verfahren und Vorrichtung zum Zusammenführen von zwei Strömen von Gegenständen
DE102009039066A1 (de) * 2009-08-27 2011-03-10 Siemens Aktiengesellschaft Vorrichtung und Verfahren zum Vereinzeln von flachen Gegenständen mit Kompensation der Abnutzung

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DE10350352B3 (de) 2003-10-29 2005-01-13 Siemens Ag Einrichtung zur Vereinzelung von überlappenden flachen Sendungen
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JP4469671B2 (ja) 2004-07-09 2010-05-26 株式会社東芝 紙葉類取り出し装置
DE102004037422B3 (de) 2004-07-30 2006-03-09 Siemens Ag Vereinzelungsstrecke für überlappte flache Sendungen in stehender Position
DE102007007813B3 (de) 2007-02-16 2008-01-17 Siemens Ag Vorrichtung und Verfahren zum Vereinzeln von flachen Gegenständen

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DE102009039062A1 (de) 2011-03-10
EP2470460A1 (fr) 2012-07-04
US8113337B2 (en) 2012-02-14
WO2011023506A1 (fr) 2011-03-03
US20110048892A1 (en) 2011-03-03

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