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EP1065160A1 - Device for separating flat objects - Google Patents

Device for separating flat objects Download PDF

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Publication number
EP1065160A1
EP1065160A1 EP99810562A EP99810562A EP1065160A1 EP 1065160 A1 EP1065160 A1 EP 1065160A1 EP 99810562 A EP99810562 A EP 99810562A EP 99810562 A EP99810562 A EP 99810562A EP 1065160 A1 EP1065160 A1 EP 1065160A1
Authority
EP
European Patent Office
Prior art keywords
stack
conveyor
package
sensor
transport
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.)
Granted
Application number
EP99810562A
Other languages
German (de)
French (fr)
Other versions
EP1065160B1 (en
Inventor
Jean-Claude Oppliger
Robert Kaiser
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
Grapha Holding AG
Siemens Schweiz 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 Grapha Holding AG, Siemens Schweiz AG filed Critical Grapha Holding AG
Priority to EP99810562A priority Critical patent/EP1065160B1/en
Priority to DE59906683T priority patent/DE59906683D1/en
Publication of EP1065160A1 publication Critical patent/EP1065160A1/en
Application granted granted Critical
Publication of EP1065160B1 publication Critical patent/EP1065160B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B65H1/00—Supports or magazines for piles from which articles are to be separated
    • B65H1/02—Supports or magazines for piles from which articles are to be separated adapted to support articles on edge
    • B65H1/025—Supports or magazines for piles from which articles are to be separated adapted to support articles on edge with controlled positively-acting mechanical devices for advancing the pile to present the articles to the separating device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H1/00—Supports or magazines for piles from which articles are to be separated
    • B65H1/08—Supports or magazines for piles from which articles are to be separated with means for advancing the articles to present the articles to the separating device
    • B65H1/24—Supports or magazines for piles from which articles are to be separated with means for advancing the articles to present the articles to the separating device with means for relieving or controlling pressure of the pile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H31/00—Pile receivers
    • B65H31/30—Arrangements for removing completed piles
    • B65H31/3072—Arrangements for removing completed piles by moving a surface supporting the pile of articles on edge, e.g. by using belts or carriages
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/42—Piling, depiling, handling piles
    • B65H2301/422—Handling piles, sets or stacks of articles
    • B65H2301/4226—Delivering, advancing piles
    • B65H2301/42265—Delivering, advancing piles by moving the surface supporting the pile of articles on edge, e.g. conveyor or carriage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/20—Belts
    • B65H2404/23—Belts with auxiliary handling means
    • B65H2404/232—Blade, plate, finger
    • 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
    • B65H2511/20—Location in space
    • B65H2511/21—Angle
    • B65H2511/214—Inclination
    • 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
    • B65H2511/20—Location in space
    • B65H2511/24—Irregularities, e.g. in orientation or skewness
    • 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
    • B65H2513/40—Movement
    • 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 for separating on an endless means of transport stacked upright flat objects such as envelopes, letters, bags, Bags, printed sheets and similar packages, with one revolving conveyor of a conveyor, the front The end of the foremost shipping item is picked up on the flat side and removes in a deduction plane transverse to the stack formation direction, wherein the conveyor for adjusting the conveyor is driven to be displaceable in a stroke-like manner.
  • a device of this type is known from the prior art WO 96/22242 of the applicant has become known.
  • the take-off belt is a conveyor belt running around vertical rollers, which has recesses with a vacuum source are connectable.
  • the leaning of the funding body against the front is achieved by a stroke-like caster effect Conveyor.
  • the conveyor is on one Sled arranged parallel to the stack formation direction guided is movable.
  • a targeted follow-up and adjustment the conveying process or the conveying device to the stack size is done by a control device. This controls the feed speed of the objects depending on the stroke position the conveyor.
  • the invention has for its object a device mentioned type to create continuous processing of flat packages of different training with a higher throughput than before. Disorders double deductions are to be largely avoided.
  • the device according to the invention is characterized by Means for recognizing the position of the package at the foremost end of the stack and control means which determine the lifting movement of the conveyor device controls for setting up inclined packages.
  • the device according to the invention can be inclined in the Transport piles are placed and stacked for deduction be aligned vertically. For vertically aligned packages is the smallest between these and double deductions can thus be avoided more reliably than before become.
  • the packages are preferably set up dynamic due to lifting movements of the conveyor and movements of endless means of transportation. A dynamic movement enables very quick erection and vertical positioning of the packages.
  • At least two sensors arranged one above the other are provided.
  • These sensors can be inexpensive and very reliable can be realized by push buttons.
  • the funding body and the endless means of transport for pressure equalization within of a stack can be moved relative to one another.
  • Such a Pressure equalization always takes place when using the means mentioned excessive pressure found in a stack to be peeled becomes.
  • the pressure equalization is preferably carried out by a corresponding lifting movement of the conveyor. The first one The shipping unit of the stack is only deducted when pressure equalization has taken place. With such a pressure equalization can further increase the likelihood of double deductions can be reduced.
  • FIG. 1 shows an endless part Means of transport 1, which is preferably an endless belt with articulated interconnected sections la.
  • Transport 1b carries a driver 1b.
  • Carrier 1b becomes one open at the front and one at the top Transport compartment 7 formed, for example by hand
  • Stack 2 of several, standing on the belt sections la flat objects, such as packages 2b and 2a is.
  • the transport direction is in Figure 1 by the arrow 12 indicated.
  • a vertical side wall only indicated here 26 is used to align the stacks 2.
  • the aligned stacks 2 slide on this side wall 26 in the direction of the arrow 12 along.
  • the stack 2 of packages placed in the compartments 7 2b are in the direction of arrow 12 against a conveyor 4 moves.
  • This device 4 is on a carriage 14 attached, the 15 by means of a frame-mounted linear actuator the directions of the double arrow 16 is movable in a stroke.
  • the Carriage 14 is slidably guided on a frame 8. The stroke can be limited by stops not shown here his.
  • Regarding the guidance of the carriage 14 is on referred to the applicant's WO 96/22242.
  • the conveyor 4 has a conveyor 3, which is preferably an endless flexible trigger tape that is on Rollers 26 is mounted. In the drawing here is only one of the two rollers 26 shown.
  • the trigger tape 3 is preferred a vacuum belt and slides with its front strand 3b ( Figure 3) along a vacuum shoe 25.
  • the driver 1b each have a recess 1c, which according to FIG formed corresponding to the contour of the conveyor 4 is. The drivers 1b can thus via the conveyor 4 can be moved away.
  • buttons 5 and 6 are sensors and horizontally protrude from the in Figure 1 shown trigger level A. Both buttons 5, 6 are over the conveyor 3 and the lower button 6 at a distance below arranged by button 5.
  • the buttons 5, 6 are lever-like trained and operable independently.
  • the upper Button 5 is with a rotary encoder 9, preferably an absolute rotary encoder connected. This rotary encoder 9 measures the swivel position of the button 5 and according to FIG. 3 gives a corresponding one Signal via a signal line 18 (FIG. 3) to a control device 17 onwards.
  • the encoder 9 has a comparatively high Resolution on.
  • the position of the lower button 6 is determined via two initiators 10 which emit a corresponding signal to the control device 17 via a line 30.
  • the initiators 10 are activated according to FIG. 1 by a rear, angled arm 6a of the button 6.
  • the initiators 10 enable a cost-effective determination of the position of the lower button 6, this determination being less precise than that of the absolute rotary encoder 9.
  • a rotary encoder could also be used instead of initiators.
  • the two buttons 5 and 6 are attached to the carriage 14 and are moved with it in the directions of the double arrow 16.
  • Both pushbuttons 5 and 6 project in the rest position, each with a front end according to FIG. 1, the trigger level A and thus the strand 3a.
  • the positions of the buttons 5 and 6 are a measure of the distances of the buttons 5 and 6 to the trigger level A.
  • the buttons 5, 6 are brought into their basic positions shown in FIG. 1 by tension springs. The operation of the device according to the invention is explained in more detail below.
  • FIG. 1 shows two filled transport compartments 7 with packages 2a, 2b.
  • the stacks 2 are transported with the means of transport 1 in FIG Arrow direction 12 moves.
  • the funding body 3 stands here quiet. With the movement of the stack 2 in the direction of arrow 12 the frontmost shipping item 2a is brought into the trigger position, in which it is applied or sucked to the conveyor 3 and thus frictionally for further transport this can be connected.
  • FIG. 4 shows the foremost shipping item 2a in the pull-off position.
  • the foremost package 2a is aligned vertically and is at a predetermined distance from the front Run 3b of the conveyor organ 3.
  • the first one Shipping item 2a sucked on conveyor 3 and the conveyor activated for transport.
  • the direction of withdrawal of the package 2a is indicated by the arrow 13 in FIG.
  • To the stack 2 from the position shown in Figure 3 in the vertically oriented trigger position shown in FIG will bring the stack 2 according to Figures 5 to 7 dynamic set up and, if necessary, pressure equalization created. If the stack 2 is vertical and not forward or tilted backwards, it goes without saying not mandatory.
  • FIG. 5 schematically shows a stack 2 which, as can be seen is inclined forward at its lower end.
  • the oncoming conveyor 4 becomes a foot end 2a 'of the foremost package 2a pressed according to Figure 5 on the lower button 6.
  • the lower button 6 is from stack 2 to its rear stop position deflected. Thereafter, the stack 2 through the opposite movements.
  • buttons 5 and 6 are pivoted accordingly. These positions of the two buttons 5 and 6 correspond essentially too high a pressure in stack 2 and thus one too high friction between adjacent packages 2a and 2b.
  • the drive is now via the control device 17 15 actuated so that the conveying device 4 according to FIG Arrow direction 22 is moved until the distance between the Package 2a and the front strand 3b, indicated by the Push button positions reached a predetermined value. Is this Value reached, the vacuum is activated that shipping item 2a sucked onto the conveyor 3 and activated of the conveyor 3 in the direction 13 from the stack 2.
  • the subsequent packages 2b are moved by a Tracked 1 in the direction of arrow 23 and also deducted individually.
  • the foremost package 2a is thus deducted when the two buttons 5 and 6 the appropriate distance of the front package Show 2a to front strand 3b.
  • the first one Shipping item 2a is aligned vertically and the Pressure in stack 2 exceeds a predetermined value Not.
  • Stack 2 is also erected if it is different from that shown is inclined. For example, it can be inclined that an upper end of the stack 2 in the transport direction of the Transport means 1 is inclined forward. So here it is the upper button 5, which is pivoted first.
  • the funding body 3 is according to Figure 5 in the direction of the arrow 21 moved and the stack 2 erected. A counter movement of the means of transport 1 supported in the direction of arrow 20 this raising up.
  • buttons 5 and 6 are mechanical sensors with which the inclination of the stack and its distance from the deduction plane A is noticeable.
  • An embodiment is also conceivable in which buttons 5 and 6 by optical or electro-optical Sensors are replaced, which corresponding inclinations one Detect stacks and distances and corresponding signals can deliver.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Stacking Of Articles And Auxiliary Devices (AREA)

Abstract

The system for separating individual flat items (2) from a stack on an endless conveyor (1) comprises a gripping component (3) mounted on a carriage (4) which takes the front item (2a) from the first stack and moves it across the belt at right angles to its direction of motion (12). Bars (5, 6) mounted on the carriage detect the position of the front item and controllers (17) control the movement of the carriage to raise sloping articles (2b).

Description

Die Erfindung betrifft eine Einrichtung zum Vereinzeln von auf einem endlosen Transportmittel stapelweise, stehend zugeführten flachen Gegenständen wie Umschlägen, Briefen, Taschen, Beuteln, Druckbogen und ähnlichen Versandstücken, mit einem umlaufenden Förderorgan einer Fördervorrichtung, das am vorderen Stapelende das vorderste Versandstück flachseitig erfasst und quer zur Stappelbildungsrichtung in einer Abzugsebene abträgt, wobei die Fördervorrichtung zur Anpassung des Förderorgans an das Stapelmass hubartig versetzbar angetrieben ist.The invention relates to a device for separating on an endless means of transport stacked upright flat objects such as envelopes, letters, bags, Bags, printed sheets and similar packages, with one revolving conveyor of a conveyor, the front The end of the foremost shipping item is picked up on the flat side and removes in a deduction plane transverse to the stack formation direction, wherein the conveyor for adjusting the conveyor is driven to be displaceable in a stroke-like manner.

Eine Einrichtung dieser Art ist im Stand der Technik aus der WO 96/22242 der Anmelderin bekannt geworden. Diese weist eine Fördervorrichtung mit einem Abzugsband auf, das die Gegenstände am vorderen Stapelende einzel erfasst und seitlich abträgt. Das Abzugsband ist ein um senkrechte Walzen umlaufendes Förderband, das Ausnehmungen aufweist, die mit einer Vacuumquelle verbindbar sind. Das Anlehnen des Förderorgans an das vordere Stapelende erfolgt durch einen hubartigen Nachlaufeffekt der Fördervorrichtung. Dazu ist die Fördervorrichtung auf einen Schlitten angeordnet, der parallel zur Stapelbildungsrichtung geführt verfahrbar ist. Ein gezieltes Nachlaufen und Anpassen des Förderorgang bzw. der Fördervorrichtung an das Stapelmass erfolgt durch eine Steuervorrichtung. Diese steuert die Zuführgeschwindigkeit der Gegenstände in Abhängigkeit der Hublage der Fördervorrichtung.A device of this type is known from the prior art WO 96/22242 of the applicant has become known. This one Conveyor with a take-off belt that holds the objects seized individually at the front end of the stack and removed laterally. The take-off belt is a conveyor belt running around vertical rollers, which has recesses with a vacuum source are connectable. The leaning of the funding body against the front The end of the stack is achieved by a stroke-like caster effect Conveyor. For this, the conveyor is on one Sled arranged parallel to the stack formation direction guided is movable. A targeted follow-up and adjustment the conveying process or the conveying device to the stack size is done by a control device. This controls the feed speed of the objects depending on the stroke position the conveyor.

Beim Vereinzeln von Stapeln mit sehr unterschiedlichen Versandstücken, beispielsweise Stapeln mit sehr dünnen oder auch sehr dicken Briefen und Taschen und Versandstücken die in Folien verpackt sind, ist ein höherer Durchsatz bei gleichzeitig konstantem Lauf schwierig zu erreichen. Insbesondere tritt bei einer angestrebten Leistungserhöhung das Problem von Doppelabzügen auf. Hierbei werden gleichzeitig zwei Versandstücke von der Fördervorrichtung erfasst und abgezogen. Die Ursache kann ein Verhängen oder Zusammenkleben benachbarter Versandstücke und/oder ein hoher Druck im Stapel sein. Doppelabzüge werden zudem durch eine Schräglage des Stapels begünstigt.When separating stacks with very different packages, for example, stacking with very thin or too very thick letters and bags and packages in foil are packed, there is a higher throughput at the same time constant run difficult to achieve. In particular, joins a desired increase in performance the problem of double deductions on. Here, two packages of the conveyor is detected and deducted. The cause can be a hanging or sticking together of neighboring packages and / or high pressure in the stack. Double deductions will be made also favored by an inclined position of the stack.

Der Erfindung liegt die Aufgabe zugrunde, eine Einrichtung der genannten Art zu schaffen, die eine kontinuierliche Verarbeitung von flachen Versandstücken unterschiedlicher Ausbildung bei gleichzeitig höherem Durchsatz als bisher ermöglicht. Störungen durch Doppelabzüge sollen weitgehend vermieden werden.The invention has for its object a device mentioned type to create continuous processing of flat packages of different training with a higher throughput than before. Disorders double deductions are to be largely avoided.

Die erfindungsgemässe Einrichtung ist gekennzeichnet durch Mittel zum Erkennen der Versandstücklage am vordersten Stapelende und Steuermitteln, welche die Hubbewegung der Fördervorrichtung zum Aufstellen geneigter Versandstücke steuert. Mit der erfindungsgemässen Einrichtung können geneigt in den Transportfächern liegende Stapel aufgestellt und für den Abzug vertikal ausgerichtet werden. Bei vertikal ausgerichteten Versandstücken ist die Reibung zwischen diesen am kleinsten und damit können Doppelabzüge zuverlässiger als bisher vermieden werden. Das Aufstellen der Versandstücke erfolgt vorzugsweise dynamisch durch Hubbewegungen der Fördervorrichtung sowie Bewegungen der endlosen Transportmittel. Ein dynamischer Bewegungsablauf ermöglicht ein sehr schnelles Aufrichten und Vertikalstellen der Versandstücke.The device according to the invention is characterized by Means for recognizing the position of the package at the foremost end of the stack and control means which determine the lifting movement of the conveyor device controls for setting up inclined packages. With the device according to the invention can be inclined in the Transport piles are placed and stacked for deduction be aligned vertically. For vertically aligned packages is the smallest between these and double deductions can thus be avoided more reliably than before become. The packages are preferably set up dynamic due to lifting movements of the conveyor and movements of endless means of transportation. A dynamic movement enables very quick erection and vertical positioning of the packages.

Vorzugsweise sind gemäss einer Weiterbildung der Erfindung wenigstens zwei übereinander angeordnete Fühler vorgesehen. Damit kann eine Schräglage eines Stapels zuverlässig festgestellt werden. Diese Fühler können kostengünstig und sehr zuverlässig durch Taster realisiert werden.According to a further development of the invention, at least two sensors arranged one above the other are provided. In order to can reliably determine an inclined position of a stack become. These sensors can be inexpensive and very reliable can be realized by push buttons.

Nach einer Weiterbildung der Erfindung sind das Förderorgan und das endlose Transportmittel für einen Druckausgleich innerhalb eines Stapels relativ zueinander bewegbar. Ein solcher Druckausgleich erfolgt immer dann, wenn mit den genannten Mitteln ein zu hoher Druck in einem abzuziehenden Stapel festgestellt wird. Der Druckausgleich erfolgt vorzugsweise durch eine entsprechende Hubbewegung der Fördervorrichtung. Das vorderste Versandstück des Stapels wird erst dann abgezogen, wenn der Druckausgleich erfolgt ist. Mit einem solchen Druckausgleich kann die Wahrscheinlichkeit von Doppelabzügen weiter vermindert werden.According to a development of the invention, the funding body and the endless means of transport for pressure equalization within of a stack can be moved relative to one another. Such a Pressure equalization always takes place when using the means mentioned excessive pressure found in a stack to be peeled becomes. The pressure equalization is preferably carried out by a corresponding lifting movement of the conveyor. The first one The shipping unit of the stack is only deducted when pressure equalization has taken place. With such a pressure equalization can further increase the likelihood of double deductions can be reduced.

Weitere vorteilhafte Merkmale ergeben sich aus den abhängigen Patentansprüchen. Further advantageous features result from the dependent ones Claims.

Ein Ausführungsbeispiel der Erfindung wird nachfolgend anhand der Zeichnung näher erläutert. Es zeigen:

Fig. 1
eine schematische Draufsicht auf eine erfindungsgemässe Einrichtung gemäss Fig. 2,
Fig. 2
eine schematische Ansicht einer erfindungsgemässen Einrichtung,
Fig. 3
eine schematische Seitenansicht der erfindungsgemässen Einrichtung gemäss Fig. 2,
Fig. 4
eine schematische Seitenansicht der Einrichtung aufgestelltem Stapel, und
Fig. 5 bis 7
schematisch unterschiedliche Zustände der erfindungsgemässen Einrichtung beim Aufstellen eines Stapels und Abziehen von Versandstücken.
An embodiment of the invention is explained below with reference to the drawing. Show it:
Fig. 1
2 shows a schematic top view of an inventive device according to FIG. 2,
Fig. 2
2 shows a schematic view of a device according to the invention,
Fig. 3
2 shows a schematic side view of the device according to the invention according to FIG. 2,
Fig. 4
a schematic side view of the set up stack, and
5 to 7
schematically different states of the device according to the invention when setting up a stack and removing packages.

Die Ansicht gemäss Figur 1 zeigt auszugsweise ein endloses Transportmittel 1, das vorzugsweise ein endloses Band mit gelenkig miteinander verbundenen Abschnitten la ist. Jeder Bandabschnitt la trägt einen Mitnehmer 1b. Durch zwei benachbarte Mitnehmer 1b wird jeweils ein vorne und oben offenes Transportfach 7 gebildet, in das beispielsweise von Hand ein Stapel 2 aus mehreren, auf den Bandabschnitten la stehenden flachen Gegenständen, wie Versandstücke 2b und 2a, einzubringen ist. Die Transportrichtung ist in Figur 1 durch den Pfeil 12 angedeutet. Eine hier nur angedeutete vertikale Seitenwand 26 dient zum Ausrichten der Stapel 2. Die ausgerichteten Stapel 2 gleiten an dieser Seitenwand 26 in Richtung des Pfeiles 12 entlang.The view according to FIG. 1 shows an endless part Means of transport 1, which is preferably an endless belt with articulated interconnected sections la. Everyone Belt section la carries a driver 1b. By two neighboring ones Carrier 1b becomes one open at the front and one at the top Transport compartment 7 formed, for example by hand Stack 2 of several, standing on the belt sections la flat objects, such as packages 2b and 2a is. The transport direction is in Figure 1 by the arrow 12 indicated. A vertical side wall only indicated here 26 is used to align the stacks 2. The aligned stacks 2 slide on this side wall 26 in the direction of the arrow 12 along.

Die in die Fächer 7 eingestellten Stapel 2 aus Versandstücken 2b werden in Richtung des Pfeiles 12 gegen eine Fördervorrichtung 4 bewegt. Diese Vorrichtung 4 ist auf einem Schlitten 14 befestigt, der mittels eines gestellfesten Hubantriebes 15 in den Richtungen des Doppelpfeils 16 hubartig bewegbar ist. Der Schlitten 14 ist an einem Gestell 8 gleitverschieblich geführt. Der Hub kann durch hier nicht gezeigte Anschläge begrenzt sein. Bezüglich der Führung des Schlittens 14 wird auf die WO 96/22242 des Anmelders verwiesen.The stack 2 of packages placed in the compartments 7 2b are in the direction of arrow 12 against a conveyor 4 moves. This device 4 is on a carriage 14 attached, the 15 by means of a frame-mounted linear actuator the directions of the double arrow 16 is movable in a stroke. The Carriage 14 is slidably guided on a frame 8. The stroke can be limited by stops not shown here his. Regarding the guidance of the carriage 14 is on referred to the applicant's WO 96/22242.

Die Fördervorrichtung 4 weist ein Förderorgan 3 auf, das vorzugsweise ein endloses flexibles Abzugsband ist, welches auf Walzen 26 gelagert ist. In der Zeichnung ist hier lediglich eine der beiden Walzen 26 gezeigt. Das Abzugsband 3 ist vorzugsweise ein Vakuumband und gleitet mit seinem vorderen Trum 3b (Figur 3) an einem Vakuumschuh 25 entlang. Die Mitnehmer 1b weisen jeweils eine Ausnehmung 1c auf, die gemäss der Figur 2 korrespondierend zur Kontur der Fördervorrichtung 4 ausgebildet ist. Die Mitnehmer 1b können somit über die Fördervorrichtung 4 hinweg bewegt werden.The conveyor 4 has a conveyor 3, which is preferably an endless flexible trigger tape that is on Rollers 26 is mounted. In the drawing here is only one of the two rollers 26 shown. The trigger tape 3 is preferred a vacuum belt and slides with its front strand 3b (Figure 3) along a vacuum shoe 25. The driver 1b each have a recess 1c, which according to FIG formed corresponding to the contour of the conveyor 4 is. The drivers 1b can thus via the conveyor 4 can be moved away.

Auf dem Schlitten 14 sind ein oberer Taster 5 und im Abstand zu diesem ein unterer Taster 6 angeordnet. Diese Taster 5 und 6 sind Fühler und überragen im Ruhezustand horizontal die in Figur 1 gezeigte Abzugsebene A. Beide Taster 5, 6 sind über dem Förderorgan 3 und der untere Taster 6 mit Abstand unterhalb von Taster 5 angeordnet. Die Taster 5, 6 sind hebelartig ausgebildet und unabhängig voneinander betätigbar. Der obere Taster 5 ist mit einem Drehgeber 9, vorzugsweise einem Absolutdrehgeber verbunden. Dieser Drehgeber 9 misst die Schwenklage des Tasters 5 und gibt gemäss Figur 3 ein entsprechendes Signal über eine Signalleitung 18 (Fig. 3) an eine Steuervorrichtung 17 ab. Der Drehgeber 9 weist eine vergleichsweise hohe Auflösung auf.On the carriage 14 are an upper button 5 and at a distance a lower button 6 is arranged for this. These buttons 5 and 6 are sensors and horizontally protrude from the in Figure 1 shown trigger level A. Both buttons 5, 6 are over the conveyor 3 and the lower button 6 at a distance below arranged by button 5. The buttons 5, 6 are lever-like trained and operable independently. The upper Button 5 is with a rotary encoder 9, preferably an absolute rotary encoder connected. This rotary encoder 9 measures the swivel position of the button 5 and according to FIG. 3 gives a corresponding one Signal via a signal line 18 (FIG. 3) to a control device 17 onwards. The encoder 9 has a comparatively high Resolution on.

Die Stellung des unteren Tasters 6 wird über zwei Initiatoren 10 bestimmt, die ein entsprechendes Signal über eine Leitung 30 an die Steuervorrichtung 17 abgeben. Die Initiatoren 10 werden gemäss Figur 1 von einem hinteren, abgewinkelten Arm 6a des Tasters 6 aktiviert. Die Initiatoren 10 ermöglichen eine kostengünstige Bestimmung der Position des unteren Tasters 6, wobei diese Bestimmung weniger genau ist als diejenige des absolut Drehgebers 9. Selbstverständlich könnte anstelle von Initiatoren auch ein Drehgeber benutzt werden.
Die beiden Taster 5 und 6 sind auf dem Schlitten 14 befestigt und werden mit diesem in den Richtungen des Doppelpfeils 16 mitbewegt.The position of the lower button 6 is determined via two initiators 10 which emit a corresponding signal to the control device 17 via a line 30. The initiators 10 are activated according to FIG. 1 by a rear, angled arm 6a of the button 6. The initiators 10 enable a cost-effective determination of the position of the lower button 6, this determination being less precise than that of the absolute rotary encoder 9. Of course, a rotary encoder could also be used instead of initiators.
The two buttons 5 and 6 are attached to the carriage 14 and are moved with it in the directions of the double arrow 16.

Beide Taster 5 und 6 überragen in der Ruhestellung jeweils mit einem vorderen Ende gemäss Figur 1 die Abzugsebene A und damit den Trum 3a. Die Positionen der Taster 5 und 6 sind ein Mass für die Abstände der Taster 5 und 6 zur Abzugsebene A. Die Taster 5, 6 werden durch Zugfedern in ihre in Fig. 1 gezeigten Grundstellungen gebracht.
Die Arbeitsweise der erfindungsgemässen Einrichtung wird nachfolgend näher erläutert.Both pushbuttons 5 and 6 project in the rest position, each with a front end according to FIG. 1, the trigger level A and thus the strand 3a. The positions of the buttons 5 and 6 are a measure of the distances of the buttons 5 and 6 to the trigger level A. The buttons 5, 6 are brought into their basic positions shown in FIG. 1 by tension springs.
The operation of the device according to the invention is explained in more detail below.

Die Stapel 2 aus Versandstücken 2a werden in der Regel von Hand in die Transportfächer 7 eingelegt. Die Figur 3 zeigt zwei gefüllte Transportfächer 7 mit Versandstücken 2a, 2b. The stack 2 of packages 2a are usually from Hand inserted in the transport compartments 7. Figure 3 shows two filled transport compartments 7 with packages 2a, 2b.

Die Stapel 2 werden mit dem Transportmittel 1 in Figur 3 in Pfeilrichtung 12 bewegt. Das Förderorgan 3 steht hierbei still. Mit der Bewegung des Stapels 2 in Pfeilrichtung 12 soll das vorderste Versandstück 2a in Abzugsstellung gebracht werden, in welcher es an das Förderorgan 3 angelegt bzw. angesaugt und dadurch für den Weitertransport reibschlüssig mit diesem verbunden werden kann.The stacks 2 are transported with the means of transport 1 in FIG Arrow direction 12 moves. The funding body 3 stands here quiet. With the movement of the stack 2 in the direction of arrow 12 the frontmost shipping item 2a is brought into the trigger position, in which it is applied or sucked to the conveyor 3 and thus frictionally for further transport this can be connected.

Die Figur 4 zeigt das vorderste Versandstück 2a in Abzugsstellung. Das vorderste Versandstück 2a ist vertikal ausgerichtet und befindet sich in einem vorbestimmten Abstand zum vorderen Trum 3b des Förderorgans 3. Für den Abzug wird das vorderste Versandstück 2a an Förderorgan 3 angesaugt und das Förderorgan für den Transport aktiviert. Die Abzugsrichtung des Versandstückes 2a ist in Figur 1 mit dem Pfeil 13 angedeutet. Um den Stapel 2 von der in Figur 3 gezeigten Stellung in die in Figur 4 gezeigte vertikal ausgerichtete Abzugsstellung zu bringen wird der Stapel 2 gemäss den Figuren 5 bis 7 dynamisch aufgestellt und falls erforderlich ein Druckausgleich geschaffen. Steht der Stapel 2 vertikal und nicht nach vorne oder nach hinten geneigt, so ist ein Aufstellen selbstverständlich nicht erforderlich.FIG. 4 shows the foremost shipping item 2a in the pull-off position. The foremost package 2a is aligned vertically and is at a predetermined distance from the front Run 3b of the conveyor organ 3. For the deduction, the first one Shipping item 2a sucked on conveyor 3 and the conveyor activated for transport. The direction of withdrawal of the package 2a is indicated by the arrow 13 in FIG. To the stack 2 from the position shown in Figure 3 in the vertically oriented trigger position shown in FIG will bring the stack 2 according to Figures 5 to 7 dynamic set up and, if necessary, pressure equalization created. If the stack 2 is vertical and not forward or tilted backwards, it goes without saying not mandatory.

Die Figur 5 zeigt schematisch einen Stapel 2, der wie ersichtlich an seinem unteren Ende nach vorne geneigt ist. Beim weiteren Transport des Stapels 2 und der entgegenkommenden Fördervorrichtung 4 wird ein Fussende 2a' des vordersten Versandstückes 2a gemäss Figur 5 an dem unteren Taster 6 angepresst. Der untere Taster 6 wird von Stapel 2 bis in seine hintere Anschlagposition ausgelenkt. Danach wird der Stapel 2 durch die gegenläufigen Bewegungen aufgestellt. FIG. 5 schematically shows a stack 2 which, as can be seen is inclined forward at its lower end. In the further Transport of the stack 2 and the oncoming conveyor 4 becomes a foot end 2a 'of the foremost package 2a pressed according to Figure 5 on the lower button 6. The lower button 6 is from stack 2 to its rear stop position deflected. Thereafter, the stack 2 through the opposite movements.

Liegt der Stapel 2 ohne Abstand und mit Druck am vorderen Trum 2b an, so sind entsprechend beide Taster 5 und 6 verschwenkt. Diese Positionen der beiden Taster 5 und 6 entsprechen im wesentlichen einem zu hohen Druck im Stapel 2 und damit einer zu hohen Reibung zwischen aneinander anliegenden Versandstücken 2a und 2b. Über die Steuervorrichtung 17 wird nun der Antrieb 15 so betätigt, dass die Fördervorrichtung 4 gemäss Figur 6 in Pfeilrichtung 22 bewegt wird, bis der Abstand zwischen dem Versandstück 2a und dem vorderen Trum 3b, angezeigt durch die Tasterstellungen, einen vorbestimmten Wert erreicht. Ist dieser Wert erreicht, wird das Vakuum aktiviert, dass Versandstück 2a an das Förderorgan 3 angesaugt und durch Aktivieren des Förderorgans 3 in Richtung 13 vom Stapel 2 abgezogen. Die nachfolgenden Versandstücke 2b werden durch eine Bewegung des Transportmittels 1 in Richtung des Pfeils 23 nachgeführt und ebenfalls einzel abgezogen.If the stack 2 is without clearance and with pressure on the front strand 2b, both buttons 5 and 6 are pivoted accordingly. These positions of the two buttons 5 and 6 correspond essentially too high a pressure in stack 2 and thus one too high friction between adjacent packages 2a and 2b. The drive is now via the control device 17 15 actuated so that the conveying device 4 according to FIG Arrow direction 22 is moved until the distance between the Package 2a and the front strand 3b, indicated by the Push button positions reached a predetermined value. Is this Value reached, the vacuum is activated that shipping item 2a sucked onto the conveyor 3 and activated of the conveyor 3 in the direction 13 from the stack 2. The subsequent packages 2b are moved by a Tracked 1 in the direction of arrow 23 and also deducted individually.

Das vorderste Versandstück 2a wird somit abgezogen, wenn die beiden Taster 5 und 6 den geeigneten Abstand des vorderen Versandstückes 2a zum vorderen Trum 3b anzeigen. Das vorderste Versandstück 2a ist hierbei vertikal ausgerichtet und der Druck im Stapel 2 überschreitet einen vorbestimmten Wert nicht.The foremost package 2a is thus deducted when the two buttons 5 and 6 the appropriate distance of the front package Show 2a to front strand 3b. The first one Shipping item 2a is aligned vertically and the Pressure in stack 2 exceeds a predetermined value Not.

Der Stapel 2 wird auch aufgerichtet, wenn er anders als gezeigt geneigt ist. Beispielsweise kann er so geneigt sein, dass ein oberes Ende des Stapels 2 in Transportrichtung des Transportmittels 1 nach vorne geneigt ist. Hier ist es somit der obere Taster 5, der zuerst verschwenkt wird. Das Förderorgan 3 wird entsprechend gemäss Figur 5 in Richtung des Pfeils 21 bewegt und der Stapel 2 aufgerichtet. Eine Gegenbewegung des Transportmittels 1 in Richtung des Pfeils 20 unterstützt dieses Aufrichten. Sind die beiden Taster 5 und 6 in Figur 7 gezeigt verschwenkt und ein Abstand B eingestellt, so kann auch hier das vorderste Versandstück 2a abgezogen werden. Ein wiederholtes Aufstellen und auch ein wiederholter Druckausgleich bei einem besonders schwierigem Stapel 2 ist ohne weiteres möglich.Stack 2 is also erected if it is different from that shown is inclined. For example, it can be inclined that an upper end of the stack 2 in the transport direction of the Transport means 1 is inclined forward. So here it is the upper button 5, which is pivoted first. The funding body 3 is according to Figure 5 in the direction of the arrow 21 moved and the stack 2 erected. A counter movement of the means of transport 1 supported in the direction of arrow 20 this raising up. Are the two buttons 5 and 6 in Figure 7 shown pivoted and a distance B set, so can the frontmost shipping item 2a can also be pulled off here. On repeated installation and also a repeated pressure equalization with a particularly difficult stack 2 is easily possible.

Die beiden Taster 5 und 6 sind mechanische Fühler, mit denen die Neigung des Stapels und ihr Abstand zur Abzugsebene A feststellbar ist. Denkbar ist auch eine Ausführung, bei welcher die Taster 5 und 6 durch optische oder elektrooptische Fühler ersetzt sind, welche entsprechende Schrägstellungen eines Stapels sowie Abstände erkennen und entsprechende Signale abgeben können.The two buttons 5 and 6 are mechanical sensors with which the inclination of the stack and its distance from the deduction plane A is noticeable. An embodiment is also conceivable in which buttons 5 and 6 by optical or electro-optical Sensors are replaced, which corresponding inclinations one Detect stacks and distances and corresponding signals can deliver.

Claims (13)

Einrichtung zum Vereinzeln von auf einem endlosen Transportmittel (1) stapelweise, stehend zugeführten, flachen Gegenständen wie Umschlägen, Briefen, Taschen, Beuteln, Druckbogen und ähnlichen Versandstücken (2) mit einem umlaufenden Förderorgan (3) einer Fördervorrichtung (4), das am vorderen Stapelende das vorderste Versandstück (2a) flachseitig erfasst und quer zur Stapelbildungsrichtung (12) in einer Abzugsebene (A) abträgt, wobei die Fördervorrichtung (4) zur Anpassung des Förderorgans (3) an das Stapelmass hubartig versetzbar angetrieben ist, gekennzeichnet durch Mittel (5, 6) zum Erkennen der Versandstücklage am vordersten Stapelende und Steuermitteln (17), welche die Hubbewegung der Fördervorrichtung (4) zum Aufstellen geneigter Versandstücke (2a, 2b) steuert. Device for separating on an endless Means of transport (1) stacked, standing fed flat objects such as envelopes, Letters, bags, pouches, printed sheets and similar packages (2) with a rotating one Conveyor (3) of a conveyor (4), the one at the front end of the stack Package (2a) grasped on the flat side and across to the stack formation direction (12) in a deduction plane (A) removes, the conveyor (4) to adjust the funding body (3) driven to the stack size in a stroke-like manner is characterized by means (5, 6) for recognizing the position of the package at the front Stack end and control means (17), which is the lifting movement of the conveyor (4) for setting up inclined packages (2a, 2b) controls. Einrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Mittel (5, 6) zum Erkennen der Versandstücklage wenigstens zwei im Abstand übereinander angeordnete Fühler aufweisen.Device according to claim 1, characterized in that the means (5, 6) for recognizing the package position at least two apart have sensors arranged one above the other. Einrichtung nach Anspruch 1, dadurch gekennzeichnet, dass der Fühler (5, 6) in die Abzugsebene (A) hineinragt.Device according to claim 1, characterized in that the sensor (5, 6) in the trigger level (A) protrudes. Einrichtung nach Anspruch 2, dadurch gekennzeichnet, dass der Fühler ein Taster (5, 6) ist, der wenigstens bereichsweise in Stapelbildungsrichtung (12) gesehen vor der Abzugsebene (A) angeordnet ist, derart, dass der Taster (5, 6) vom abzuziehenden Versandstück (2a) betätigt wird.Device according to claim 2, characterized in that the sensor is a button (5, 6) is at least partially in the direction of stack formation (12) seen in front of the trigger level (A) is arranged such that the Button (5, 6) from the shipping item to be removed (2a) is operated. Einrichtung nach einem der Ansprüche 2 bis 4, dadurch gekennzeichnet, dass beide Fühler als Taster (5, 6) ausgebildet sind.Device according to one of claims 2 to 4, characterized in that both sensors as Buttons (5, 6) are formed. Einrichtung nach Anspruch 5, dadurch gekennzeichnet, dass die beiden Taster (5, 6) so angeordnet sind, dass ein mit seinem oberen Rand zurückgeneigtes Versandstück (2a) zuerst einen unteren Taster (6) und ein mit dem oberen Rand vorgeneigtes Versandstück (2a) zuerst einen oberen Taster (5) betätigt.Device according to claim 5, characterized in that the two buttons (5, 6) are arranged are that one with its top edge first inclined package (2a) lower button (6) and one with the upper edge inclined package (2a) first one upper button (5) actuated. Einrichtung nach Anspruch 6, dadurch gekennzeichnet, dass der obere Taster (5) eine höhere Tastgenauigkeit aufweist als der untere Taster (6).Device according to claim 6, characterized in that the upper button (5) has a higher one Has tactile accuracy than the lower button (6). Einrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass wenigstens ein Fühler (5, 6) und das Förderorgan (3) auf einem gemeinsamen Schlitten (14) angeordnet sind.Device according to one of claims 1 to 7, characterized in that at least one Sensor (5, 6) and the conveyor (3) on one common slide (14) arranged are. Einrichtung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass die Versandstücke (2a, 2b) des vordersten Stapels (2) aufgrund der Detektion des wenigstens einen Fühlers (5, 6) dynamisch durch Bewegungen des Förderorgans (3) und/oder des endlosen Transportmittels (1) aufgestellt werden. Device according to one of claims 1 to 8, characterized in that the packages (2a, 2b) of the foremost stack (2) due to the detection of the at least one sensor (5, 6) dynamic by movements of the conveyor (3) and / or the endless means of transport (1) be set up. Einrichtung nach Anspruch 9, dadurch gekennzeichnet, dass das Förderorgan (3) und/oder das endlose Transportmittel (1) für einen Druckausgleich innerhalb des Stapels (2) relativ zueinander bewegbar sind.Device according to claim 9, characterized in that the funding body (3) and / or the endless means of transport (1) for one Relative pressure equalization within the stack (2) are movable to each other. Einrichtung nach Anspruch 10, dadurch gekennzeichnet, dass nach dem Druckausgleich das endlose Transportmittel (1) und das Förderorgan (3) parallel und relativ zueinander bewegt werden.Device according to claim 10, characterized in that after pressure equalization that endless means of transport (1) and the conveyor (3) moved parallel and relative to each other become. Einrichtung nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, dass wenigstens ein Fühler (5) mit einem Drehgeber (9), vorzugsweise einem Absolutdrehgeber verbunden ist und dieser ein Signal abgibt, das einem Abstand eines vorderen Versandstückes (2a) zur Abzugsebene (A) entspricht.Device according to one of claims 1 to 11, characterized in that at least one Sensor (5) with a rotary encoder (9), preferably is connected to an absolute encoder and this emits a signal that is a distance of a front package (2a) to the deduction level (A) corresponds. Einrichtung nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, dass wenigstens einer der Fühler (6) einen auftreffenden Stapel (2) bremst.Device according to one of claims 1 to 12, characterized in that at least one the sensor (6) an impacting stack (2) brakes.
EP99810562A 1999-06-28 1999-06-28 Device for separating flat objects Expired - Lifetime EP1065160B1 (en)

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EP99810562A EP1065160B1 (en) 1999-06-28 1999-06-28 Device for separating flat objects
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004113207A1 (en) * 2003-06-25 2004-12-29 Siemens Aktiengesellschaft Device for separating flat items

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996022242A1 (en) * 1995-01-16 1996-07-25 Grapha-Holding Ag Device for sorting flat objects conveyed in stacks
WO1997030917A1 (en) * 1996-02-21 1997-08-28 Bell & Howell Postal Systems, Inc. Magazine apparatus and method for loading documents
DE19612567A1 (en) * 1996-03-29 1997-10-02 Licentia Gmbh Device for aligning flat items
EP0854103A1 (en) * 1996-12-20 1998-07-22 Grapha-Holding Ag Device for separating stacked flat objects, said objects being stacked on the edge

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996022242A1 (en) * 1995-01-16 1996-07-25 Grapha-Holding Ag Device for sorting flat objects conveyed in stacks
WO1997030917A1 (en) * 1996-02-21 1997-08-28 Bell & Howell Postal Systems, Inc. Magazine apparatus and method for loading documents
DE19612567A1 (en) * 1996-03-29 1997-10-02 Licentia Gmbh Device for aligning flat items
EP0854103A1 (en) * 1996-12-20 1998-07-22 Grapha-Holding Ag Device for separating stacked flat objects, said objects being stacked on the edge

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004113207A1 (en) * 2003-06-25 2004-12-29 Siemens Aktiengesellschaft Device for separating flat items

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DE59906683D1 (en) 2003-09-25

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