EP1742861B1 - Device for conveying flat postal articles in an upright position - Google Patents

Device for conveying flat postal articles in an upright position Download PDF

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Publication number
EP1742861B1
EP1742861B1 EP05741764A EP05741764A EP1742861B1 EP 1742861 B1 EP1742861 B1 EP 1742861B1 EP 05741764 A EP05741764 A EP 05741764A EP 05741764 A EP05741764 A EP 05741764A EP 1742861 B1 EP1742861 B1 EP 1742861B1
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EP
European Patent Office
Prior art keywords
belt
pressure
lateral guide
roller
deflection roller
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
EP05741764A
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German (de)
French (fr)
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EP1742861A1 (en
Inventor
Holger Schererz
André TOLKSDORF
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Siemens AG
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Siemens AG
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Publication date
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Publication of EP1742861A1 publication Critical patent/EP1742861A1/en
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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
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/12—Delivering or advancing articles from machines; Advancing articles to or into piles by means of the nip between two, or between two sets of, moving tapes or bands or rollers
    • 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
    • B65H2301/30—Orientation, displacement, position of the handled material
    • B65H2301/32—Orientation of handled material
    • B65H2301/321—Standing on 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
    • 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
    • B65H2511/20—Location in space
    • B65H2511/22—Distance
    • B65H2511/224—Nip between rollers, between belts or between rollers and belts
    • 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 the transport of flat items in an upright position according to the preamble of claim 1 (see, eg FR-A-2 692 565 ).
  • the U-channel system with moving base and side bands consists of transport channels in the width of the thickest consignment.
  • the consignments are safely transported to each other without any relative movement.
  • exceptionally thin semi-rigid programs can collapse (collapse) in the channels up to 50 mm wide and can no longer be erected out of this state in order to be shown to a scanner over the entire surface.
  • other solutions WO 00/78 471 A1 ) consist of transport systems with special pinch rollers (lamella rollers), which are arranged above the shipment height, to ensure a transport of different shipments. Especially with a large range of formats this is expensive because of the then necessary number of rolls.
  • Each roller also has its own inertia, which must be accelerated differently at different transmission thicknesses and thus different effective radius of the role, and without much effort allows only insufficient access during maintenance and troubleshooting actions.
  • Such systems are available in vertical fully covered (height of the shipments) as well as inclined partially covered arrangement of An horrbs or rollers.
  • the invention has for its object to provide a reliable device for transporting flat items in different formats in an upright position with a minimum possible transport slippage of the items to each other and the transport device, which perform the programs in a defined position process equipment.
  • the object is achieved by the features of claim 1.
  • the distance of the lateral guide belts from each other at the module ends is greater than the thickest transport to be transported.
  • the height of the first lateral guide band is made smaller than that of the second lateral guide band.
  • an elastic, narrow, endless pressure belt is arranged below the first guide belt, which is pressed by Anyakumlenkrollen resiliently against the lower part of the second guide belt and pushed away by the broadcasts according to their thickness of the second guide belt.
  • shocks of the programs receiving guide rails with low coefficient of friction against the programs attached On the brackets of Andruckumlenkrollen obliquely to the transport direction in the inlet and outlet area and tangential to the Andruckumlenkrollen extending, shocks of the programs receiving guide rails with low coefficient of friction against the programs attached. This ensures that both the thick shipments are transported gently and the thin shipments with low intrinsic stiffness safely taken with prevention of collapsing be transported.
  • the pressure belt For the outlet region of the transport module, it is advantageous to return the pressure belt via a further pressure deflection roller, which is pressed with the pressure belt against the deflection roller of the second guide belt in the outlet region, and via a rear deflection roller of the outlet region.
  • These two pulleys are each rotatably mounted on a lever arm.
  • the two lever arms with their other ends are mounted in a pivot point and diverging therefrom, which is approximately centrally located in the transport direction in front of the two pulleys between them.
  • the belt tension is also used to generate the pressing force.
  • a particularly gentle transport of the shipments can be achieved if in each case a lever arm is connected to an actuator in the entry and exit area, which temporarily moves the respective Antikumlenkrolle according to the measured film thickness, position and length of the second guide belt, as long as the shipment the Antikumlenkrolle is located.
  • the second lateral guide strip on the process device is divided by means of additional pulleys in two sub-bands and when a pressure roller is arranged in front of the process device, which presses the first lateral guide belt and the pressure belt against the second lateral guide belt.
  • the divided into sections / transport modules transport device has according to FIG. 1 a base band 1, a high second lateral guide band 2 and a top arranged, only partially and possibly incompletely pressed in the central longitudinal region first lateral guide band 3.
  • the distance perpendicular to the transport direction of fixed deflection rollers 5 of the upper first lateral guide band 3 and the second lateral Guide tape 2 is greater than the maximum thickness of the shipments to be transported. 6
  • a narrow pressure belt 4 is arranged under the guide tape.
  • the base band 1, the second lateral guide band 2, the upper first lateral guide band 3 and the lower narrow pressure band 4 form a known solution similar to the U channel.
  • the lower narrow pressure belt 4 is arranged by a special combination of oscillations at the input and output of a band group so that it evades passively thicker transmissions 6 without negative influence (transport slippage) and this oriented to the second guide belt 2. For thinner and particularly flexible shipments 6 is achieved by the use of the lower pressure belt 4, that these programs 6 are supported in the lower area.
  • a collapse (collapse) of these critical formats is prevented and by the clamping between the second guide belt 2 and pressure belt 4 such a stable position of the programs is achieved that with a (partially) pressed first lateral guide belt 3, these programs 6 can be erected according to the requirements of process equipment ,
  • the second lateral guide strip 2 assumes the function of a guide element, which, however, does not exert any relative movement to the transmission 6.
  • This is an optimal transport given for the broadcasts 6 with a large range of thickness.
  • this transport is particularly suitable for feeding to process devices (scanners, etc.).
  • the length of the transport modules is exclusively determined by the function required in each case and not by gaps between the programs 6.
  • additional pinch rollers 7 which determines the first lateral guide belt 3 and the pressure belt 4 against the second lateral guide belt 2 to press.
  • the number and the distance of the additional pinch rollers 7 results according to the distance with which a maximum thickness of mail 6 can follow a maximum thin mail 6, without causing an influence of the lower pressure belt. 4 in such a way that the support function for thin flexible shipments 6 is abandoned. So that a process device within the transport module has free access to the mailing surfaces and the mailings 6 occupy a defined position in front of the process device, the second lateral guide strip 2 is subdivided on the process device into two subbands by means of additional deflection rollers and an additional pressure roller 7 is arranged in front of the process device.
  • FIG. 2 and FIG. 3 At the entrance of the transport module is located accordingly FIG. 2 and FIG. 3 an inlet rocker, consisting of three arranged in the vertices of a pivotable triangle pulleys 12,13,14 over which the pressure belt 4 is guided and deflected.
  • the Anyakumlenkrolle 13, which presses with the pressure belt 4 against the second guide belt 2, and the rear guide roller 14 are rotatably mounted at a pivot point in which the third, in the transport direction furthest forward guide pulley 12 is rotatably mounted lever arm pivotally mounted.
  • guide rails 8 On the lever arm of Andruckumlenkrolle 13 guide rails 8 are secured by means of vibration damping elements 11.
  • the triangular shape ensures that the entry angle ( ⁇ ) and Thus, the difference between the speed components of the pressure belt 4 are kept low in the transport direction.
  • the coefficients of friction of the running over the guide rail 8 An horrbandes 4 are to choose low on both sides, because the impact between the pressure belt 4 and guide rail 8 is briefly introduced as additional power in the pressure belt 4 when hitting incoming thick broadcasts 6.10.
  • On the transport side a low friction to the consignment 6,10 is required because the speed of the incoming mail 10 as a function of the angle ⁇ is greater than that of the running at the angle ⁇ pressure belt 4. It comes in the break-in phase to a relative movement between the shipment 10th and lower pressure belt 4.
  • the second lateral guide belt 2 is provided on the transport side and, as far as possible, also the base belt 1 with a high coefficient of friction with respect to the shipments 6, 10.
  • the outlet swingarm ( FIG. 4 ) is similar to the inlet rocker from a pivot point 15, in which two diverging lever arms are fixed, another Andruckumlaufrolle 16 and a rear guide roller 17 of the outlet region, both of which are rotatably mounted at the free ends of the lever arms, and a displaceable tensioning roller 18 of the outlet region.
  • a guide rail is also mounted by means of damping elements.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
  • Sorting Of Articles (AREA)

Abstract

The distance between lateral guiding belts (2, 3) is greater at the ends of the conveying modules than the thickest postal article (6, 10) to be conveyed. The height of the first lateral conveying belt (3) is less than that of the second lateral guiding belt (2). An elastic, narrow endless pressing belt (4) is situated underneath the first lateral guiding belt (3), presses against the lower portion of the second guiding belt (2) in a resilient manner by means of pressing deflection rollers (13, 16), and is pressed away from the second guiding belt (2) by the postal articles (6, 10) according to their thickness. Guide rails (8), which have a low coefficient of friction with regard to the postal articles (6, 10), which extend diagonal to the direction of conveyance and tangential to the pressing deflection rollers (13, 16), and which absorb shocks of the postal articles (6, 10), are mounted on the holding devices of the pressing deflection rollers (13, 16).

Description

Die Erfindung betrifft eine Vorrichtung zum Transport von flachen Sendungen in aufrechter Position nach dem Oberbegriff des Anspruches 1 (siehe z.B. FR-A-2 692 565 ).The invention relates to a device for the transport of flat items in an upright position according to the preamble of claim 1 (see, eg FR-A-2 692 565 ).

In Postbearbeitungsmaschinen ist es erforderlich, flache Sendungen vorbei an Prozessgeräten zu verschiedenen Endstellen zu transportieren. Die Auswahl geeigneter Transportprinzipien wird bestimmt durch geforderte Durchsätze, erforderliche Transportgeschwindigkeit, Formate der zu fördernden Sendungen und zulässige, meist durch Prozessgeräte vorgegebene Lücken zwischen zwei hintereinander zu transportierenden Sendungen.In mail processing machines, it is necessary to transport flat shipments past process devices to various terminals. The selection of suitable transport principles is determined by required throughputs, required transport speed, formats of the programs to be conveyed and permissible, usually predetermined by process equipment gaps between two consecutively transported items.

Bekannte in vertikaler Ausrichtung transportierende Systeme sind meist für speziell klassifizierte Formatbereiche gestaltet. In Maschinen zur vornehmlichen Standartbriefbearbeitung sind dieses meist andrückende Deckbandsysteme, in denen flache Sendungen bis ca. 10mm Dicke eingeklemmt zwischen zwei Flachbändern aufrecht stehend transportiert werden. Eine Formateinschränkung solcher Systeme ist neben der Dicke eine erforderliche Mindestflexibilität, die eine Sendung für einen erfolgreichen Transport aufweisen muss.
Für größere und dickere Formate und Sendungen, die eine sehr geringe Biegefähigkeit aufweisen, sind solche Systeme nur einsetzbar bei Verwendung von sehr großen Lücken und geringeren Geschwindigkeiten.
Andere bekannte Systeme für entsprechende flache Sendungen, wie U-Kanalsysteme ( EP 0 444 177 B1 ), erfüllen wiederum nur bedingt den Anspruch, auch dünne biegeschlaffe Sendungen in einer geforderten Qualität zu transportieren und insbesondere den Prozessgeräten definiert zuzuführen.Known vertical transport systems are usually designed for specially classified format areas. In machines for the main standard letter processing are this mostly pressing shroud systems, in which flat shipments are clamped up to about 10mm thickness between two flat belts transported upright. A format constraint of such systems, in addition to the thickness, is a minimum required flexibility that a shipment must have for successful transport.
For larger and thicker formats and shipments, which have a very low bendability, such systems are only applicable when using very large gaps and lower speeds.
Other known systems for corresponding flat transmissions, such as U-channel systems ( EP 0 444 177 B1 ), in turn, meet only conditionally the claim to transport even sluggish broadcasts in a required quality and in particular to supply the process equipment defined.

Das U-Kanalsystem mit bewegten Grund- und Seitenbändern besteht aus Transportkanälen in der Breite der dicksten Sendung. Dabei werden die Sendungen ohne jede Relativbewegung zueinander sicher transportiert. Ausgesprochen dünne biegeschlaffe Sendungen können jedoch in den bis zu 50mm breiten Kanälen in sich zusammenfallen (kollabieren) und aus diesem Zustand nicht mehr aufgerichtet werden, um etwa vollflächig einem Scanner vorgeführt zu werden.
Wiederum andere Lösungen ( WO 00/78 471 A1 ) bestehen aus Transportsystemen mit speziellen Andruckrollen (Lamellenrollen), welche über die Sendungshöhe angeordnet, einen Transport unterschiedlicher Sendungen gewährleisten. Insbesondere bei großem Formatspektrum wird dieses wegen der dann notwendigen Rollenzahl teuer. Jede Rolle besitzt zudem eine eigene Massenträgheit, die bei unterschiedlichen Sendungsdicken und dadurch differierenden Wirkradius der Rolle, verschieden beschleunigt werden muss und ohne größeren Aufwand einen nur unzureichenden Zugang bei Wartungs- und Störungsbeseitigungsaktionen zulässt. Solche Systeme gibt es in vertikaler voll überdeckter (Höhe der Sendungen) als auch geneigter teilüberdeckter Anordnung der Andruckbänder bzw. -rollen.The U-channel system with moving base and side bands consists of transport channels in the width of the thickest consignment. The consignments are safely transported to each other without any relative movement. However, exceptionally thin semi-rigid programs can collapse (collapse) in the channels up to 50 mm wide and can no longer be erected out of this state in order to be shown to a scanner over the entire surface.
Again other solutions ( WO 00/78 471 A1 ) consist of transport systems with special pinch rollers (lamella rollers), which are arranged above the shipment height, to ensure a transport of different shipments. Especially with a large range of formats this is expensive because of the then necessary number of rolls. Each roller also has its own inertia, which must be accelerated differently at different transmission thicknesses and thus different effective radius of the role, and without much effort allows only insufficient access during maintenance and troubleshooting actions. Such systems are available in vertical fully covered (height of the shipments) as well as inclined partially covered arrangement of Andruckbänder or rollers.

Bekannt wurden auch Einrichtungen ( EP 1 200 326 B1 , EP 1 154 944 B1 ), bei denen Sendungen zwischen einem seitlichen Führungsband und in einem Abstand zu diesem angeordneten Führungen transportiert und in ihrem unteren Bereich mittels eines federnd geführten Andruckbands an das seitliche Führungsband gedrückt werden.Facilities have also become known ( EP 1 200 326 B1 . EP 1 154 944 B1 ), in which programs are transported between a lateral guide belt and at a distance to this arranged guides and pressed in its lower part by means of a resiliently guided Andruckbands to the lateral guide belt.

Der Erfindung liegt die Aufgabe zugrunde, eine zuverlässige Vorrichtung zum Transport von flachen Sendungen in unterschiedlichen Formaten in aufrechter Position mit einem geringst möglichen Transportschlupf der Sendungen zueinander und zur Transportvorrichtung zu schaffen, welche die Sendungen in definierter Lage Prozessgeräten zuführen.The invention has for its object to provide a reliable device for transporting flat items in different formats in an upright position with a minimum possible transport slippage of the items to each other and the transport device, which perform the programs in a defined position process equipment.

Erfindungsgemäß wird die Aufgabe durch die Merkmale des Anspruches 1 gelöst.
Dabei ist der Abstand der seitlichen Führungsbänder voneinander an den Modulenden größer als die dickste zu transportierende Sendung. Die Höhe des ersten seitlichen Führungsbandes ist geringer ausgeführt als die des zweiten seitlichen Führungsbandes. Unterhalb des ersten Führungsbandes ist ein elastisches, schmales, endloses Andruckband angeordnet, welches mittels Andruckumlenkrollen federnd gegen den unteren Teil des zweiten Führungsbandes gedrückt und durch die Sendungen entsprechend ihrer Dicke von dem zweiten Führungsband weggedrückt wird. An den Halterungen der Andruckumlenkrollen sind schräg zur Transportrichtung im Ein- und Auslaufbereich und tangential zu den Andruckumlenkrollen verlaufende, Stöße der Sendungen aufnehmende Leitschienen mit geringem Reibwert gegenüber den Sendungen angebracht. Damit wird erreicht, dass sowohl die dicken Sendungen schonend transportiert werden als auch die dünnen Sendungen mit geringer Eigensteifigkeit sicher gefasst mit Verhinderung des in sich Zusammenfallens transportiert werden.According to the invention the object is achieved by the features of claim 1.
In this case, the distance of the lateral guide belts from each other at the module ends is greater than the thickest transport to be transported. The height of the first lateral guide band is made smaller than that of the second lateral guide band. Below the first guide belt, an elastic, narrow, endless pressure belt is arranged, which is pressed by Andruckumlenkrollen resiliently against the lower part of the second guide belt and pushed away by the broadcasts according to their thickness of the second guide belt. On the brackets of Andruckumlenkrollen obliquely to the transport direction in the inlet and outlet area and tangential to the Andruckumlenkrollen extending, shocks of the programs receiving guide rails with low coefficient of friction against the programs attached. This ensures that both the thick shipments are transported gently and the thin shipments with low intrinsic stiffness safely taken with prevention of collapsing be transported.

Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen dargelegt.
Dabei ist es vorteilhaft, im Einlaufbereich des Transportmoduls das Andruckband über drei in den Eckpunkten eines schwenkbaren Dreiecks angeordnete Umlenkrollen zu führen und umzulenken. Die Andruckumlenkrolle, die mit dem Andruckband gegen das zweite Führungsband drückt, und die hintere Umlenkrolle sind an in einem Drehpunkt, in dem die dritte, in Transportrichtung am weitesten vorn befindliche Umlenkrolle drehbar befestigt ist, schwenkbar angebrachten Hebelarmen drehbar gelagert. Die Andruckumlenkrolle mit dem Andruckband wird durch eine einlaufende Sendung entsprechend der Sendungsdicke von dem zweiten Führungsband gegen eine Kraft weggedrückt. Diese Kraft wird allein durch die entsprechende Auslenkung des über die hintere Umlenkrolle laufenden Andruckbandes gegen eine Spannrolle des Einlaufbereiches ohne ein zusätzliches Federelement erzeugt.Advantageous embodiments of the invention are set forth in the subclaims.
It is advantageous to perform in the inlet region of the transport module, the pressure belt over three arranged in the vertices of a pivotable triangle pulleys and deflect. The Andruckumlenkrolle, which presses with the pressure belt against the second guide belt, and the rear guide pulley are rotatably mounted at a pivot point in which the third, in the transport direction located furthest forward guide pulley rotatably mounted lever arms pivotally mounted. The Andruckumlenkrolle with the pressure belt is pushed away by an incoming broadcast according to the transmission thickness of the second guide belt against a force. This force is generated solely by the corresponding deflection of the running over the rear guide roller pressure belt against a tension roller of the inlet area without an additional spring element.

Für den Auslaufbereich des Transportmoduls ist es vorteilhaft, das Andruckband über eine weitere Andruckumlenkrolle, die mit dem Andruckband gegen die Umlenkrolle des zweiten Führungsbandes im Auslaufbereich gedrückt wird, und über eine hintere Umlenkrolle des Auslaufbereiches zurückzuführen. Diese beiden Umlenkrollen sind jeweils an einem Hebelarm drehbar angebracht. Die beiden Hebelarme mit ihren anderen Enden sind in einem Drehpunkt und von diesem auseinanderlaufend befestigt, der sich in Transportrichtung vor den beiden Umlenkrollen annähernd mittig zwischen ihnen befindet. Hierbei wird ebenfalls die Riemenspannung zur Erzeugung der Andruckkraft genutzt.For the outlet region of the transport module, it is advantageous to return the pressure belt via a further pressure deflection roller, which is pressed with the pressure belt against the deflection roller of the second guide belt in the outlet region, and via a rear deflection roller of the outlet region. These two pulleys are each rotatably mounted on a lever arm. The two lever arms with their other ends are mounted in a pivot point and diverging therefrom, which is approximately centrally located in the transport direction in front of the two pulleys between them. Here, the belt tension is also used to generate the pressing force.

Zur Verringerung der Stoßbeanspruchung der Sendungen und der Andruckbandmechanismen ist es vorteilhaft, die Leitschienen an den Hebelarmen der Andruckrollen des Andruckbandes mittels schwingungsdämpfender Elemente zu befestigen.To reduce the impact stress of the programs and the Andruckbandmechanismen it is advantageous to attach the guide rails to the lever arms of the pressure rollers of the pressure belt by means of vibration-damping elements.

Ein besonders schonender Transport der Sendungen kann erreicht werden, wenn im Ein- und Auslaufbereich jeweils ein Hebelarm mit einem Aktor verbunden ist, der die betreffende Andruckumlenkrolle entsprechend der gemessenen Sendungsdicke, -position und -länge zeitweilig vom zweiten Führungsband wegbewegt, solange sich die Sendung an der Andruckumlenkrolle befindet.A particularly gentle transport of the shipments can be achieved if in each case a lever arm is connected to an actuator in the entry and exit area, which temporarily moves the respective Andruckumlenkrolle according to the measured film thickness, position and length of the second guide belt, as long as the shipment the Andruckumlenkrolle is located.

Vorteilhaft ist es auch, das zweite seitliche Führungsband und auch das Grundband auf der Transportseite mit einem hohen Reibwert gegenüber der Sendung zu versehen. Dadurch wird die Gefahr des Schlupfes der Sendungen gegenüber dem Transportkanal verringert.It is also advantageous to provide the second lateral guide band and the base band on the transport side with a high coefficient of friction against the shipment. As a result, the risk of slippage of the programs relative to the transport channel is reduced.

Damit ein Prozessgerät innerhalb des Transportmoduls freien Zugang zu den Sendungsoberflächen hat und die Sendungen vor dem Prozessgerät eine definierte Lage einnehmen, ist es vorteilhaft, wenn das zweite seitliche Führungsband an dem Prozessgerät mittels zusätzlicher Umlenkrollen in zwei Teilbänder unterteilt wird und wenn vor dem Prozessgerät eine Andruckrolle angeordnet ist, die das erste seitliche Führungsband und das Andruckband gegen das zweite seitliche Führungsband drückt.So that a process device within the transport module has free access to the mailing surfaces and the mailings occupy a defined position in front of the process device, it is advantageous if the second lateral guide strip on the process device is divided by means of additional pulleys in two sub-bands and when a pressure roller is arranged in front of the process device, which presses the first lateral guide belt and the pressure belt against the second lateral guide belt.

Anschließend wird die Erfindung in einem Ausführungsbeispiel anhand der Zeichnung näher erläutert.Subsequently, the invention will be explained in more detail in an embodiment with reference to the drawing.

Dabei zeigen

FIG 1
eine schematische Schnittdarstellung des Auslaufbereiches eines Transportmoduls,
FIG 2
eine schematische Draufsicht und eine zugehörige Schnittdarstellung eines Transportmoduls,
FIG 3
eine Draufsicht auf den Einlaufbereich eines Transportmoduls,
FIG 4
eine Draufsicht auf den Auslaufbereich eines Transportmoduls,
FIG 5
eine Draufsicht auf die benachbarten Teile zweier Transportmodule mit aktiver Verstellung des Andruckbandes.
Show
FIG. 1
a schematic sectional view of the outlet region of a transport module,
FIG. 2
a schematic plan view and an associated sectional view of a transport module,
FIG. 3
a top view of the inlet region of a transport module,
FIG. 4
a plan view of the outlet region of a transport module,
FIG. 5
a plan view of the adjacent parts of two transport modules with active adjustment of the pressure belt.

Die in Teilabschnitte/Transportmodule unterteilte Transportvorrichtung besitzt gemäß FIG 1 ein Grundband 1, ein hohes zweites seitliches Führungsband 2 und ein oben angeordnetes, nur teilweise und ggf. unvollständig im mittleren Längsbereich angedrücktes erstes seitliches Führungsband 3. Der Abstand senkrecht zur Transportrichtung der fest stehenden Umlenkrollen 5 des oberen ersten seitlichen Führungsbandes 3 und des zweiten seitlichen Führungsbandes 2 ist größer als die maximale Dicke der zu transportierenden Sendungen 6.The divided into sections / transport modules transport device has according to FIG. 1 a base band 1, a high second lateral guide band 2 and a top arranged, only partially and possibly incompletely pressed in the central longitudinal region first lateral guide band 3. The distance perpendicular to the transport direction of fixed deflection rollers 5 of the upper first lateral guide band 3 and the second lateral Guide tape 2 is greater than the maximum thickness of the shipments to be transported. 6

Weiterhin ist unter dem Führungsband ein schmales Andruckband 4 angeordnet. Somit bilden das Grundband 1, das zweite seitliche Führungsband 2, das obere erste seitliche Führungsband 3 und das untere schmale Andruckband 4 einen der bekannten Lösung ähnlichen U-Kanal. Das untere schmale Andruckband 4 ist durch eine spezielle Schwingenkombination am Ein- und Ausgang einer Bandgruppe so angeordnet, dass es dickeren Sendungen 6 ohne negativen Einfluss (Transportschlupf) passiv ausweicht und diese dabei an das zweite Führungsband 2 orientiert. Für dünnere und insbesondere biegeschlaffe Sendungen 6 wird durch die Verwendung des unteren Andruckbandes 4 erreicht, dass diese Sendungen 6 im unteren Bereich gestützt werden. Ein Zusammenrutschen (Kollabieren) dieser kritischen Formate wird verhindert und durch die Einspannung zwischen zweitem Führungsband 2 und Andruckband 4 wird eine solchermaßen stabile Lage der Sendungen erreicht, dass mit einem (teilweise) angedrückten ersten seitlichen Führungsband 3 diese Sendungen 6 vor Prozessgeräten anforderungsgemäß aufgerichtet werden können. Das zweite seitliche Führungsband 2 übernimmt hier die Funktion eines Leitelementes, welches jedoch keine Relativbewegung zu Sendung 6 ausübt.
Damit ist für die Sendungen 6 mit einem großen Dickenspektrum ein optimaler Transport gegeben. Darüber hinaus ist dieser Transport besonders für das Zuführen an Prozessgeräte (Scanner etc.) geeignet.
Die Länge der Transportmodule ist ausschließlich bestimmt durch die jeweils erforderliche Funktion und nicht nach Lücken zwischen den Sendungen 6. Bezüglich der Lücken bestimmt sich lediglich die Anordnung von zusätzlichen Andruckrollen 7, die das erste seitliche Führungsband 3 und das Andruckband 4 gegen das zweite seitliche Führungsband 2 drücken. Die Anzahl und der Abstand der zusätzlichen Andruckrollen 7 ergibt sich nach dem Abstand, mit dem eine maximal dicke Sendung 6 einer maximal dünnen Sendung 6 folgen kann, ohne dass dabei eine Beeinflussung des unteren Andruckbandes 4 in solcher Weise erfolgt, dass die Stützfunktion für dünne biegeschlaffe Sendungen 6 aufgegeben wird. Damit ein Prozessgerät innerhalb des Transportmoduls freien Zugang zu den Sendungsoberflächen hat und die Sendungen 6 vor dem Prozessgerät eine definierte Lage einnehmen, wird das zweite seitliche Führungsband 2 an dem Prozessgerät mittels zusätzlicher Umlenkrollen in zwei Teilbänder unterteilt und vor dem Prozessgerät eine zusätzliche Andruckrolle 7 angeordnet, die das erste seitliche Führungsband 3 und das Andruckband 4 gegen das zweite seitliche Führungsband 2 drückt.
Am Eingang des Transportmoduls befindet sich entsprechend FIG 2 und FIG 3 eine Einlaufschwinge, bestehend aus drei in den Eckpunkten eines schwenkbaren Dreiecks angeordneten Umlenkrollen 12,13,14, über die das Andruckband 4 geführt und umgelenkt wird. Die Andruckumlenkrolle 13, die mit dem Andruckband 4 gegen das zweite Führungsband 2 drückt, und die hintere Umlenkrolle 14 sind an in einem Drehpunkt, in dem die dritte, in Transportrichtung am weitesten vorn befindliche Umlenkrolle 12 drehbar befestigt ist, schwenkbar angebrachten Hebelarm drehbar gelagert. An dem Hebelarm der Andruckumlenkrolle 13 sind Leitschienen 8 mittels schwingungsdämpfender Elemente 11 befestigt. Damit wird besonders für dicke Sendungen 10 mit einer geringen Eigendämpfung (hohe Härte) der Öffnungsstoß der Schwinge gedämpft. Die Andruckumlenkrolle 13 mit dem Andruckband 4 und die Leitschiene 8 wird durch eine einlaufende Sendung 10 entsprechend der Sendungsdicke von dem zweiten Führungsband 2 gegen eine Kraft weggedrückt. Diese einstellbare Kraft wird allein durch die entsprechende Auslenkung des über die hintere Umlenkrolle 14 laufenden elastischen Andruckbandes 4 gegen eine verschiebbare Spannrolle 9 des Einlaufbereiches ohne ein zusätzliches Federelement erzeugt. Die Einlaufschwinge weist im Sinne eines geringen Transportschlupfes und eines möglich geringen Andruckes auf die Sendung 6,10 ein geringes Massenträgheitsmoment auf. Die Dreiecksform gewährleistet, dass der Einfahrwinkel (α) und damit der Unterschied zwischen den Geschwindigkeitskomponenten des Andruckbandes 4 in Transportrichtung gering gehalten sind. Die Reibwerte des über die Leitschiene 8 laufenden Andruckbandes 4 sind auf beiden Seiten gering zu wählen, weil beim Auftreffen von einlaufenden dicken Sendungen 6,10 die Reibung zwischen Andruckband 4 und Leitschiene 8 kurzzeitig als zusätzliche Leistung in das Andruckband 4 eingebracht wird. Auf der Transportseite ist eine geringe Reibung zur Sendung 6,10 erforderlich, weil die Geschwindigkeit der einfahrenden Sendung 10 in Abhängigkeit des Winkels α größer ist als die des unter dem Winkel α laufenden Andruckbandes 4. Es kommt in der Einlaufphase zu einer Relativbewegung zwischen Sendung 10 und unterem Andruckband 4.
Um diese Relativbewegung nicht in einen Transportschlupf umzusetzen, ist das zweite seitliche Führungsband 2 auf der Transportseite und soweit möglich auch das Grundband 1 mit einem hohen Reibwert gegenüber den Sendungen 6,10 versehen.Furthermore, a narrow pressure belt 4 is arranged under the guide tape. Thus, the base band 1, the second lateral guide band 2, the upper first lateral guide band 3 and the lower narrow pressure band 4 form a known solution similar to the U channel. The lower narrow pressure belt 4 is arranged by a special combination of oscillations at the input and output of a band group so that it evades passively thicker transmissions 6 without negative influence (transport slippage) and this oriented to the second guide belt 2. For thinner and particularly flexible shipments 6 is achieved by the use of the lower pressure belt 4, that these programs 6 are supported in the lower area. A collapse (collapse) of these critical formats is prevented and by the clamping between the second guide belt 2 and pressure belt 4 such a stable position of the programs is achieved that with a (partially) pressed first lateral guide belt 3, these programs 6 can be erected according to the requirements of process equipment , The second lateral guide strip 2 assumes the function of a guide element, which, however, does not exert any relative movement to the transmission 6.
This is an optimal transport given for the broadcasts 6 with a large range of thickness. In addition, this transport is particularly suitable for feeding to process devices (scanners, etc.).
The length of the transport modules is exclusively determined by the function required in each case and not by gaps between the programs 6. Regarding the gaps, only the arrangement of additional pinch rollers 7, which determines the first lateral guide belt 3 and the pressure belt 4 against the second lateral guide belt 2 to press. The number and the distance of the additional pinch rollers 7 results according to the distance with which a maximum thickness of mail 6 can follow a maximum thin mail 6, without causing an influence of the lower pressure belt. 4 in such a way that the support function for thin flexible shipments 6 is abandoned. So that a process device within the transport module has free access to the mailing surfaces and the mailings 6 occupy a defined position in front of the process device, the second lateral guide strip 2 is subdivided on the process device into two subbands by means of additional deflection rollers and an additional pressure roller 7 is arranged in front of the process device. which presses the first lateral guide belt 3 and the pressure belt 4 against the second lateral guide belt 2.
At the entrance of the transport module is located accordingly FIG. 2 and FIG. 3 an inlet rocker, consisting of three arranged in the vertices of a pivotable triangle pulleys 12,13,14 over which the pressure belt 4 is guided and deflected. The Andruckumlenkrolle 13, which presses with the pressure belt 4 against the second guide belt 2, and the rear guide roller 14 are rotatably mounted at a pivot point in which the third, in the transport direction furthest forward guide pulley 12 is rotatably mounted lever arm pivotally mounted. On the lever arm of Andruckumlenkrolle 13 guide rails 8 are secured by means of vibration damping elements 11. This is attenuated especially for thick broadcasts 10 with a low internal damping (high hardness) of the opening shock of the rocker. The Andruckumlenkrolle 13 with the pressure belt 4 and the guide rail 8 is pushed away by an incoming broadcast 10 according to the transmission thickness of the second guide belt 2 against a force. This adjustable force is generated solely by the corresponding deflection of the running past the rear guide roller 14 elastic pressure belt 4 against a sliding tension roller 9 of the inlet area without an additional spring element. The inlet rocker has in the sense of a low transport slip and a possible low pressure on the consignment 6,10 a low moment of inertia. The triangular shape ensures that the entry angle (α) and Thus, the difference between the speed components of the pressure belt 4 are kept low in the transport direction. The coefficients of friction of the running over the guide rail 8 Andruckbandes 4 are to choose low on both sides, because the impact between the pressure belt 4 and guide rail 8 is briefly introduced as additional power in the pressure belt 4 when hitting incoming thick broadcasts 6.10. On the transport side, a low friction to the consignment 6,10 is required because the speed of the incoming mail 10 as a function of the angle α is greater than that of the running at the angle α pressure belt 4. It comes in the break-in phase to a relative movement between the shipment 10th and lower pressure belt 4.
In order not to translate this relative movement into a transport slip, the second lateral guide belt 2 is provided on the transport side and, as far as possible, also the base belt 1 with a high coefficient of friction with respect to the shipments 6, 10.

Die Auslaufschwinge (FIG 4) besteht ähnlich wie bei der Einlaufschwinge aus einem Drehpunkt 15, in dem zwei auseinanderlaufende Hebelarme befestigt sind, einer weiteren Andruckumlaufrolle 16 und einer hinteren Umlenkrolle 17 des Auslaufbereiches, die beide an den freien Enden der Hebelarme drehbar befestigt sind, sowie einer verschiebbaren Spannrolle 18 des Auslaufbereiches. An dem Hebelarm der Andruckumlaufrolle 16 ist ebenfalls mittels Dämpfungselemente eine Leitschiene angebracht.
Durch die nahezu querkraftfreie Einwirkung der Riemenspannkräfte kann auch hier durch die Spannrolle 18 und eine geeignete Bandauswahl jede gewünschte Schwingenkraft erreicht und das Schwingverhalten eingestellt werden.
Gemäß FIG 5 ist im Ein- und Auslaufbereich jeweils ein Hebelarm mit einem Aktor 19 verbunden, der die betreffende Andruckumlenkrolle 13,16 über die Schwinge entsprechend der gemessenen Sendungsdicke, -position und -länge zeitweilig vom zweiten Führungsband 2 wegbewegt, solange sich die Sendung 6,10 an der Andruckumlenkrolle 13,16 befindet.The outlet swingarm ( FIG. 4 ) is similar to the inlet rocker from a pivot point 15, in which two diverging lever arms are fixed, another Andruckumlaufrolle 16 and a rear guide roller 17 of the outlet region, both of which are rotatably mounted at the free ends of the lever arms, and a displaceable tensioning roller 18 of the outlet region. At the lever arm of the pressure roller 16 a guide rail is also mounted by means of damping elements.
As a result of the almost transverse force-free action of the belt tensioning forces, any desired oscillating force can be achieved here as well by the tensioning roller 18 and a suitable band selection, and the oscillation behavior can be set.
According to FIG. 5 is in the entry and exit area each have a lever arm connected to an actuator 19, the respective Andruckumlenkrolle 13.16 on the rocker according to the measured transmission thickness, position and length temporarily from second guide belt 2 is moved away, as long as the shipment is 6,10 on the Andruckumlenkrolle 13,16.

Claims (7)

  1. Apparatus for conveying mail flats in the entry and exit section of the conveying module in an upright position with at least one conveying module consisting in each case of a circulating, horizontally oriented floor belt (1) guided via return rollers, and two endless lateral guide belts (2,3) guided via deflection rollers (5), characterised in that
    - the distance of the lateral guide belts (2,3) from one another at the ends of the conveying modules is greater than the thickest mail item (6,10) to be conveyed,
    - the height of the first lateral guide belt (3) is implemented less than that of the second lateral guide belt (2),
    - below the first lateral guide belt (3) there is disposed an elastic, narrow, endless pressure belt (4) which is resiliently pressed against the lower part of the second guide belt (2) by means of pressure deflection rollers (13,16) and pressed away from the second guide belt (2) by the mail items (6,10) according to their thickness and
    - guide rails (8) with a low coefficient of friction with respect to the mail items (6,10) and which absorb impacts of the mail items (6,10) at the supports of the pressure deflection rollers (13,16) are mounted obliquely to the conveying direction in the entry and exit section of the conveying module and tangentially to the pressure deflection rollers (13,16).
  2. Apparatus according to claim 1, characterised in that, in the entry section of the conveying module, the pressure belt (4) is guided and deflected via three deflection rollers (12,13,14) disposed at the vertices of a pivoted triangle, the pressure deflection roller (13) which presses the pressure belt (4) against the second guide belt (2), and the rear deflection roller (14) being pivoted on swivel mounted lever arms at a pivot point where the third deflection roller (12) located farthest forward in the conveying direction is fulcrumed, the pressure deflection roller (13) with the pressure belt being pressed away from the second guide belt (2) by an incoming mail item (6,10) according to the item thickness against a force which is produced by the corresponding displacement of the pressure belt (4) passing over the rear deflection roller (14) against a tension roller (9) of the entry section.
  3. Apparatus according to claim 1, characterised in that, in the exit section of the conveying module, the pressure belt (4) is returned via another pressure deflection roller (16) which presses the pressure belt (4) against the deflection roller of the second guide belt (2) in the exit section, and via a rear deflection roller (17) of the exit section, these two deflection rollers (16,17) being each pivotally mounted on a lever arm, and the other ends of the two lever arms being mounted at a pivot point (15) and in a diverging manner from same, which point is located upstream of the two deflection rollers (16,17) approximately centrally between same, and the pressure deflection roller (16) of the exit section being pressed away from the pressure belt (4) by an outgoing mail item (6,10) depending on its thickness by the second guide belt (2) against a force which is produced by the corresponding displacement of the pressure belt (4) passing over the rear deflection roller (17) against a tension roller (18) of the exit section.
  4. Apparatus according to claim 2 or 3, characterised in that the guide rails (8) are mounted on the lever arms of the pressure rollers (13,16) of the pressure belts (4) by means of vibration-damping elements (11).
  5. Apparatus according to claim 2 and 3, characterised in that, in the entry and exit section, a lever arm is connected in each case to an actuator (19) which temporarily presses the relevant pressure deflection roller (13,16) away from the second guide belt (2) according to the measured mail item thickness, position and length as long as the mail item (6,10) is located at the relevant pressure deflection roller (13,16).
  6. Apparatus according to claim 1, characterised in that the second lateral guide belt (2) and also the floor belt (1) are provided on the conveying side with a high coefficient of friction with respect to the mail item (6,10).
  7. Apparatus according to claim 1, characterised in that, at process equipment, the second lateral guide belt (2) is subdividable within the conveying module by means of additional deflection rollers into two sub-belts, so that the process equipment has access to the mail item surfaces, and there is disposed upstream of the process equipment an additional pressure roller (7) which presses the first lateral guide belt (3) and the pressure belt (4) against the second lateral guide belt (2).
EP05741764A 2004-05-03 2005-04-20 Device for conveying flat postal articles in an upright position Expired - Fee Related EP1742861B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004022027A DE102004022027B3 (en) 2004-05-03 2004-05-03 Device for transporting flat items in an upright position
PCT/EP2005/004215 WO2005108256A1 (en) 2004-05-03 2005-04-20 Device for conveying flat postal articles in an upright position

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EP1742861A1 EP1742861A1 (en) 2007-01-17
EP1742861B1 true EP1742861B1 (en) 2008-10-29

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US (1) US7500554B2 (en)
EP (1) EP1742861B1 (en)
JP (1) JP2007534574A (en)
CN (1) CN100478266C (en)
DE (2) DE102004022027B3 (en)
WO (1) WO2005108256A1 (en)

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US20080041698A1 (en) 2008-02-21
EP1742861A1 (en) 2007-01-17
CN1950280A (en) 2007-04-18
WO2005108256A1 (en) 2005-11-17
DE102004022027B3 (en) 2005-12-08
DE502005005812D1 (en) 2008-12-11
JP2007534574A (en) 2007-11-29
CN100478266C (en) 2009-04-15
US7500554B2 (en) 2009-03-10

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