EP0189897B1 - Method and device for modifying the velocity of overlapping streams of paper products - Google Patents

Method and device for modifying the velocity of overlapping streams of paper products Download PDF

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Publication number
EP0189897B1
EP0189897B1 EP86101099A EP86101099A EP0189897B1 EP 0189897 B1 EP0189897 B1 EP 0189897B1 EP 86101099 A EP86101099 A EP 86101099A EP 86101099 A EP86101099 A EP 86101099A EP 0189897 B1 EP0189897 B1 EP 0189897B1
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EP
European Patent Office
Prior art keywords
conveyor belt
sheets
rollers
star
belt conveyor
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EP86101099A
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German (de)
French (fr)
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EP0189897A3 (en
EP0189897A2 (en
Inventor
Gunter Gämmerler
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Priority to AT86101099T priority Critical patent/ATE50747T1/en
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    • 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
    • B65H29/66—Advancing articles in overlapping streams
    • 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
    • B65H2701/17—Nature of material
    • B65H2701/176—Cardboard

Definitions

  • the invention relates primarily to a method for changing the conveying speed of individual sheet-like structures or the like which are brought up on a first belt conveyor or the like, in particular printed products, by means of a second belt conveyor or the like and a third at different speeds driven belt conveyor or the like and a pressurization of the fabrics or the like which is carried out substantially perpendicular to the surface of the second belt conveyor.
  • a corresponding method is known from EP-A-0 075 121.
  • a delay device consisting of a vacuum chamber, which has the third endless belt conveyor; the latter is driven at a speed which is half the conveying speed of the second belt conveyor.
  • the third belt conveyor is perforated and runs over the delay device connected to a vacuum pump.
  • the invention is therefore based on the object of providing a method with which the possible dandruff errors can reappear in the same size in the event of a subsequent scaling.
  • the object is achieved in that, according to the invention, the introduction by the first belt conveyor or the like and the pressurization of the fabrics or the like with mechanical pressure exerted by the third belt conveyor on the same rhythm as the upstream depositing device of the fabrics or the like. regardless of the position d f leading edge of the respective sheetlike structure or the like and that the mechanical pressure from the third to the second belt conveyor is maintained by a linear parallel guidance over a section of the conveying path of the sheetlike structure or the like.
  • the flat structures or the like are pulled apart until they are completely separated.
  • a device which has a first belt conveyor or the like for guiding the flat structures or the like, a second and a third belt conveyor driven with different speeds in relation to the latter and means for exerting pressure on the flat structures o. Like.
  • the means for exerting the mechanical pressure consist of at least three, preferably five rollers, rollers or the like, which are resiliently attached to a star, the tangential speed of which is the same as the tangential speed of an upstream delivery device for the fabrics o Vietnamese agrees and that the third belt conveyor has at least one deflection roller or roller, which brings about a straight parallel guidance.
  • the third belt conveyor or the like can be designed as an endless conveyor.
  • rollers, rollers or the like of the star are also designed as deflection rollers, rollers or the like of the third belt conveyor or the like.
  • Each roller, roller or the like of the star can be individually resiliently mounted in the radial direction.
  • the rollers, rollers or the like of the star in the region of the second belt conveyor or the like are positively guided parallel to the latter;
  • the positive guidance can consist of at least one cam disk or the like arranged on one side of the second belt conveyor or the like.
  • the products delivered by a web-fed rotary printing press can be folded signatures, single sheets or even stacks of sheets, provided that they are in the form of a scale with the usual means of conveyance, e.g. B. pairs of endless conveyor belts can be conveyed at high speed.
  • Web-fed rotary printing presses in which folds are also made, deliver e.g. B. 40,000 signatures per hour in scale form.
  • the device described below is intended to ensure that the error present in each case is kept constant.
  • the paper products are introduced via a first belt conveyor (not shown) of the device according to the invention.
  • the slightly elastic endless belt of the belt conveyor 5 is approximately 50-55 cm wide in the embodiment shown and has an adhesive surface. Instead of the single wide belt, a number of narrower belts can run over the deflection rollers.
  • a star rotating around an axis 10 Arranged within the endless belt of the belt conveyor 5 is a star rotating around an axis 10, which has free-running rollers 11 - five rollers are provided in the present case.
  • the star provided with the five free-running deflection rollers engages with two or three deflection rollers on the inside of the belt conveyor 5.
  • the individual rollers 11 of the star are attached to a housing 13, each provided with a spring 12, so that they can spring in the radial direction.
  • straight sections of the belt conveyor 5 are provided from the free-running roller 14 to the corresponding free-running deflection roller 15 and again to the corresponding deflection roller 16.
  • the straight section of the endless conveyor to the shed entry point. 20 has an acute angle to the horizontal in order to precisely determine the line of contact between the two endless belts of the second belt conveyor 3 and the third belt conveyor 5.
  • the respective freely running rollers 11, 14, 15 and 16 and 17 together form an arc angle which is adapted to the paper product distance.
  • the third belt conveyor 5 is driven at a triple speed of 150 m / min in order to pull the paper product flow apart.
  • a cam disk 30 is provided on each side of the two belt conveyors 3 and 5, which determine the running of the laterally projecting, free-running rollers 11 and 14 to 17, respectively.
  • rollers in the upper part of their rotational range rotate in the fully extended position due to the spring load, they are pressed inward by the charging surface 31 in the cam plate 30 in the lower third against the action of the springs 12, the respective paper product being detected at the point of curvature 32 .
  • the belt conveyor 5 is released from the paper product and runs over the deflection rollers 6, 7, 8, whereupon the next paper product is detected in the entry point 20.
  • the star can with five deflection rollers and the belt conveyor 5 z. B. be provided with four deflection rollers; However, it is not necessary that the deflecting rollers of the star on the third belt conveyor 5 - as stated above - attack with at least two rollers, but only one deflecting roller of the star is then necessary for the pressing.
  • a second star with a belt conveyor can also be used.

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

Abstract

A method of and an apparatus for changing the conveying speed of shingled paper products after each of the individual products has been seized and accelerated, whereby the products are seized on its upper surface or its lower surface as a result of a cyclically recurring contact pressure exerted vertically or approximately vertically on the latter.

Description

Die Erfindung bezieht sich in erster Linie auf ein Verfahren zum Verändern der Fördergeschwindigkeit einzelner auf einem ersten Bandförderer o. dgl. herangeführter, schuppenartig ausliegender Flächengebilde o. dgl., insbesondere Druckprodukte, mittels eines zweiten Bandförderers o. dgl. und eines dritten mit unterschiedlicher Geschwindigkeit angetriebenen Bandförderers o. dgl. und einer im wesentlichen senkrecht zur Oberfläche des zweiten Bandförderers vorgenommenen Druckbeaufschlagung der Flächengebilde o. dgl.The invention relates primarily to a method for changing the conveying speed of individual sheet-like structures or the like which are brought up on a first belt conveyor or the like, in particular printed products, by means of a second belt conveyor or the like and a third at different speeds driven belt conveyor or the like and a pressurization of the fabrics or the like which is carried out substantially perpendicular to the surface of the second belt conveyor.

Aus der EP-A-0 075 121 ist ein entsprechendes Verfahren bekannt. Oberhalb des zweiten Bandförderers ist eine Verzögerungseinrichtung, bestehend aus einer Unterdruckkammer, angeordnet, die den dritten endlosen Bandförderer aufweist ; letzterer wird mit einer Geschwindigkeit angetrieben, die halb so groß ist wie die Fördergeschwindigkeit des zweiten Bandförderers. Der dritte Bandförderer ist gelocht und läuft über die mit einer Vakuumpumpe verbundene Verzögerungseinrichtung. Beim Vorbeilaufen eines Produktepaketes an der Unterdruckkammer wird das oberste Papierprodukt in seinem freiliegenden Bereich durch den dritten Bandförderer erfaßt und an diesem festgehalten. Das obenliegende Papierprodukt muß jeweils an der Stirnkante erfaßt werden, da sonst das Produktepaket nicht auseinandergezogen werden kann. Eine Vereinzelung der Papierprodukte ist mit diesem bekannten Verfahren jedoch nicht möglich, weil auf das vereinzelte Papierprodukt der Unterdruck und die Fördervorrichtung gleichzeitig einwirken würden.A corresponding method is known from EP-A-0 075 121. Above the second belt conveyor there is a delay device, consisting of a vacuum chamber, which has the third endless belt conveyor; the latter is driven at a speed which is half the conveying speed of the second belt conveyor. The third belt conveyor is perforated and runs over the delay device connected to a vacuum pump. When a product package runs past the vacuum chamber, the uppermost paper product in its exposed area is grasped by the third belt conveyor and held there. The paper product on top must be grasped at the front edge, otherwise the product package cannot be pulled apart. A separation of the paper products is not possible with this known method, however, because the vacuum and the conveying device would act on the separated paper product at the same time.

Da die Papierprodukte nach Abgabe durch den Ablagestem oder auch einer anderen Verschuppungsvorrichtung auf den Bandförderer nicht so genau abgelegt werden, daß die Schuppenabstände bzw. Produktabstände jeweils gleich lang sind, entstehen bei der Aufschuppung Fehler, die z. B. bei 80 mm Schuppenabstand bis zu ± 50 % betragen können. Bei einem Auseinanderziehen des Schuppenstromes würden sich diese Fehler entsprechend vervielfachen.Since the paper products are not deposited on the belt conveyor so precisely after delivery by the storage starter or another scaling device that the scale distances or product distances are in each case the same length, errors occur during the scaling, which, for. B. at 80 mm scale spacing can be up to ± 50%. If the stream of shingles were pulled apart, these errors would multiply accordingly.

Der Erfindung liegt daher die Aufgabe zugrunde, ein Verfahren zu schaffen, mit welchem die etwaigen Schuppenfehler bei einer späteren Aufschuppung in gleicher Größe wieder auftauchen können.The invention is therefore based on the object of providing a method with which the possible dandruff errors can reappear in the same size in the event of a subsequent scaling.

Die Aufgabe wird dadurch gelöst, daß erfindungsgemäß die Heranführung durch den ersten Bandförderer o. dgl. und die Druckbeaufschlagung der Flächengebilde o. dgl. mit vom dritten auf den zweiten Bandförderer ausgeübten mechanischem Druck im gleichen Rhythmus wie die vorgeschaltete Ablegevorrichtung der Flächengebilde o. dgl. unabhängig von der Lage df Vorderkante der jeweiligen Flächengebilde o. dgl. erfolgt und daß der mechanische Druck vom dritten auf den zweiten Bandförderer durch eine geradlinige Parallelführung über einen Teilabschnitt des Förderweges der Flächengebilde o. dgl. aufrechterhalten wird.The object is achieved in that, according to the invention, the introduction by the first belt conveyor or the like and the pressurization of the fabrics or the like with mechanical pressure exerted by the third belt conveyor on the same rhythm as the upstream depositing device of the fabrics or the like. regardless of the position d f leading edge of the respective sheetlike structure or the like and that the mechanical pressure from the third to the second belt conveyor is maintained by a linear parallel guidance over a section of the conveying path of the sheetlike structure or the like.

Aus der DE-OS 2 406 766 ist eine Taktrollenanordnung an Bogenfördereinrichtungen bekannt. Die einzelnen Taktrollen sind an Schwenkhebeln auf einer gemeinsamen Welle angeordnet. Die schuppenweise herangeführten Bogen werden gegen Anschläge gefördert. Beim Herabsinken der Taktrollen werden diese Anschläge weggeschwenkt, so daß der jeweilige Bogen durch die Haftreibung, die durch das Gewicht der Taktrollen hervorgerufen wird, beschleunigt wird. Da beim erfindungsgemäßen Verfahren keine Anschläge vorgesehen sind, ist ein echter Vergleich mit dem eben genannten bekannten Verfahren nicht möglich.From DE-OS 2 406 766 a clock roller arrangement on sheet conveyors is known. The individual clock rollers are arranged on swivel levers on a common shaft. The sheets, brought up in scales, are conveyed against stops. When the clock rollers drop, these stops are pivoted away, so that the respective sheet is accelerated by the static friction caused by the weight of the clock rollers. Since no stops are provided in the method according to the invention, a true comparison with the known method just mentioned is not possible.

Nach einer bevorzugten Abwandlung des erfindungsgemäßen Verfahrens, wobei der dritte Bandförderer o. dgl. mit erhöhter Geschwindigkeit angetrieben wird, werden die Flächengebilde o. dgl. bis zu ihrer vollständigen Vereinzelung auseinandergezogen.According to a preferred modification of the method according to the invention, in which the third belt conveyor or the like is driven at increased speed, the flat structures or the like are pulled apart until they are completely separated.

Zur Durchführung des erfindungsgemäßen Verfahrens ist eine Vorrichtung vorgesehen, die einen ersten Bandförderer o. dgl. zum Heranführen der Flächengebilde o. dgl., einen zweiten und einen dritten in bezug auf letzteren mit unterschiedlicher Geschwindigkeit angetriebenen Bandförderer und Mittel zum Ausüben eines Druckes auf die Flächengebilde o. dgl. zum Zusammenführen des zweiten und dritten Bandförderers aufweist. Diese Vorrichtung ist erfindungsgemäß dadurch gekennzeichnet, daß die Mittel zum Ausüben des mechanischen Drucks aus mindestens drei, vorzugsweise fünf Rollen, Walzen o. dgl. bestehen, die an einem Stern federnd angebracht sind, dessen Tangentialgeschwindigkeit mit der Tangentialgeschwindigkeit einer vorgeschalteten Abgabevorrichtung für die Flächengebilde o. dgl. übereinstimmt und daß der dritte Bandförderer mindestens eine Umlenkrolle oder - walze aufweist, welche eine geradlinige Parallelführung bewirkt. Der dritte Bandförderer o. dgl. kann als Endlosförderer ausgebildet sein.In order to carry out the method according to the invention, a device is provided which has a first belt conveyor or the like for guiding the flat structures or the like, a second and a third belt conveyor driven with different speeds in relation to the latter and means for exerting pressure on the flat structures o. Like. For merging the second and third belt conveyor. This device is characterized according to the invention in that the means for exerting the mechanical pressure consist of at least three, preferably five rollers, rollers or the like, which are resiliently attached to a star, the tangential speed of which is the same as the tangential speed of an upstream delivery device for the fabrics o ..... agrees and that the third belt conveyor has at least one deflection roller or roller, which brings about a straight parallel guidance. The third belt conveyor or the like can be designed as an endless conveyor.

Die Rollen, Walzen o. dgl. des Sterns sind auch als Umlenkrollen, -walzen o. dgl. des dritten Bandförderers o. dgl. ausgebildet. Jede Rolle, Walze o. dgl. des Sterns kann einzeln in radialer Richtung federnd gelagert sein.The rollers, rollers or the like of the star are also designed as deflection rollers, rollers or the like of the third belt conveyor or the like. Each roller, roller or the like of the star can be individually resiliently mounted in the radial direction.

Nach einer besonders bevorzugten Ausführungsform der erfindungsgemäßen Vorrichtung sind die Rollen, Walzen o. dgl. des Sterns im Bereich des zweiten Bandförderers o. dgl. parallel zu letzterem zwangsgeführt ; die Zwangsführung kann dabei aus mindestens einer auf einer Seite des zweiten Bandförderers o. dgl. angeordneten Kurvenscheibe o. dgl. bestehen.According to a particularly preferred embodiment of the device according to the invention, the rollers, rollers or the like of the star in the region of the second belt conveyor or the like are positively guided parallel to the latter; the positive guidance can consist of at least one cam disk or the like arranged on one side of the second belt conveyor or the like.

Auf der Zeichnung ist eine beispielsweise Ausführungsform der. erfindungsgemäßen Vorrichtung dargestellt; sie wird nachfolgend näher beschrieben. Es zeigt:

  • Fig. 1 in schematischer Darstellung eine Seitenansicht auf die Ausführungsform und
  • Fig. 2 eine ähnliche Ansicht mit einem zusätzlichen Teil.
In the drawing is an example embodiment of the. device according to the invention shown; it is described in more detail below. It shows:
  • Fig. 1 shows a schematic representation of a side view of the embodiment and
  • Fig. 2 is a similar view with an additional part.

Die von einer Rollenrotationsdruckmaschine angelieferten Produkte können gefalzte Signaturen, Einzelbögen oder auch Bogenstapel sein, soweit sie in Schuppenform mit üblichen Fördermitteln, z. B. Paaren von endlosen Förderbändern mit hoher Geschwindigkeit gefördert werden können.The products delivered by a web-fed rotary printing press can be folded signatures, single sheets or even stacks of sheets, provided that they are in the form of a scale with the usual means of conveyance, e.g. B. pairs of endless conveyor belts can be conveyed at high speed.

Rollenrotationsdruckmaschinen, bei denen auch Falzungen vorgenommen werden, liefern z. B. 40 000 Signaturen je Stunde in Schuppenform.Web-fed rotary printing presses, in which folds are also made, deliver e.g. B. 40,000 signatures per hour in scale form.

Unabhängig von der Länge der einzelnen Papierprodukte hat sich ein Schuppenabstand z. B. von 80 mm als üblich erwiesen. Dieser übliche Schuppenabstand variiert jedoch aufgrund der etwas unregelmäßigen Abgabe des Abgabesterns hinter der Rollenrotationsdruckmaschine oder auch einer Beschickungsmaschine, so daß Fehler von ca. 50 %, d. h. also 40 mm zu berücksichtigen sind.Regardless of the length of the individual paper products, a scale distance z. B. of 80 mm has proven to be common. However, this usual scale spacing varies due to the somewhat irregular delivery of the delivery star behind the web-fed rotary printing press or a loading machine, so that errors of approx. 50%, i.e. H. 40 mm must be taken into account.

Um zu vermeiden, daß diese Fehler sich bei einer Beschleunigung der einzelnen Schuppen beim Auseinanderziehen des Schuppenstromes vergrößern, soll mit der nachfolgend beschriebenen Vorrichtung jeweils erreicht werden, daß der jeweils vorhandene Fehler konstant gehalten wird.In order to prevent these errors from increasing when the individual scales are accelerated when the stream of shingles is pulled apart, the device described below is intended to ensure that the error present in each case is kept constant.

Die Papierprodukte werden über einen nicht dargestellten ersten Bandförderer der erfindungsgemäßen Vorrichtung eingeführt. Ein über zwei Umlenkwalzen 1 und 2 geführter zweiter Bandförderer 3 ist als Endlosband ausgebildet und dient als Widerlager für einen ebenfalls als Endlosband ausgebildeten dritten Bandförderer 5, welcher bei der dargestellten Ausführungsform drei Umlenkwalzen 6, 7, 8 aufweist, von denen eine angetrieben sein kann.The paper products are introduced via a first belt conveyor (not shown) of the device according to the invention. A second belt conveyor 3, which is guided over two deflection rollers 1 and 2, is designed as an endless belt and serves as an abutment for a third belt conveyor 5, also designed as an endless belt, which in the embodiment shown has three deflection rollers 6, 7, 8, one of which can be driven.

Das geringfügig elastische Endlosband des Bandförderers 5 ist bei der dargestellten Ausführungsform ca. 50-55 cm breit und weist eine haftfähige Oberfläche auf. Statt des einzelnen breiten Bandes kann eine Anzahl schmälerer Bänder über die Umlenkwalzen umlaufen.The slightly elastic endless belt of the belt conveyor 5 is approximately 50-55 cm wide in the embodiment shown and has an adhesive surface. Instead of the single wide belt, a number of narrower belts can run over the deflection rollers.

Innerhalb des Endlosbandes des Bandförderers 5 ist ein um eine Achse 10 umlaufender Stern angeordnet, welcher freilaufende Walzen 11 - im vorliegenden Fall sind fünf Walzen vorgesehen - aufweist.Arranged within the endless belt of the belt conveyor 5 is a star rotating around an axis 10, which has free-running rollers 11 - five rollers are provided in the present case.

Der mit den fünf freilaufenden Umlenkwalzen versehene Stern greift jeweils mit zwei oder drei Umlenkwalzen an der Innenseite des Bandförderers 5 an.The star provided with the five free-running deflection rollers engages with two or three deflection rollers on the inside of the belt conveyor 5.

Die einzelnen Walzen 11 des Sterns sind an einem mit jeweils einer Feder 12 versehenen Gehäuse 13 angebracht, so daß sie in radialer Richtung federn können.The individual rollers 11 of the star are attached to a housing 13, each provided with a spring 12, so that they can spring in the radial direction.

Wie aus Fig. 1 ersichtlich ist, sind von der frei laufenden Walze 14 bis zur entsprechenden frei laufenden Umlenkwalze 15 und wiederum bis zur entsprechenden Umlenkwalze 16 geradlinige Abschnitte des Bandförderers 5 vorgesehen. Der geradlinige Abschnitt des Endlosförderers zur Schuppeneinlaufstelle. 20 hat einen spitzen Winkel zur Horizontalen, um die Berührungslinie zwischen den beiden Endlosbändern des zweiten Bandförderers 3 und des dritten Bandförderers 5 genau zu bestimmen.As can be seen from FIG. 1, straight sections of the belt conveyor 5 are provided from the free-running roller 14 to the corresponding free-running deflection roller 15 and again to the corresponding deflection roller 16. The straight section of the endless conveyor to the shed entry point. 20 has an acute angle to the horizontal in order to precisely determine the line of contact between the two endless belts of the second belt conveyor 3 and the third belt conveyor 5.

Die jeweilig frei laufenden Walzen 11, 14, 15 und 16 bzw. 17 schließen miteinander einen Bogenwinkel ein, der dem Papierproduktabstand angepaßt ist.The respective freely running rollers 11, 14, 15 and 16 and 17 together form an arc angle which is adapted to the paper product distance.

Während der Schuppenstrom mit einer Geschwindigkeit von ca. 50 m/min einläuft, wird der dritte Bandförderer 5 mit einer ca. dreifachen Geschwindigkeit von 150 m/min angetrieben, um den Papierproduktstrom auseinanderzuziehen.While the shingled stream runs in at a speed of approx. 50 m / min, the third belt conveyor 5 is driven at a triple speed of 150 m / min in order to pull the paper product flow apart.

Der Stern mit den fünf Walzen 11, 14 bis 17 dreht sich dagegen mit einer Geschwindigkeit, die der Drehung des Abgabesterns der Rollenrotationsdruckmaschine bei Herstellung des Schuppenstromes entspricht, also z. B. 50 m/min.The star with the five rollers 11, 14 to 17, on the other hand, rotates at a speed which corresponds to the rotation of the discharge star of the web-fed rotary printing press during the production of the shingled stream, that is to say, for. B. 50 m / min.

Aufgrund dieser Relativgeschwindigkeiten wird erreicht, daß das Auseinanderziehen der Schuppen mit nun dreifach erhöhter Geschwindigkeit erreicht wird, jedoch daß durch die Andrückwalzen 11 bzw. 14 bis 17 jeweils das einzelne Papierprodukt immer im gleichen Abstand von dem vorherigen Papierprodukt und dem nachfolgenden Papierprodukt erfaßt wird. Durch diesen « konstanten Abstand der Erfassungsstelle, unabhängig von der möglichen Fehlerquelle wird erreicht, daß bei einem nachfolgenden Verschuppen die ursprünglichen Fehler mit ihren Abständen wieder auftauchen.Because of these relative speeds it is achieved that the pulling apart of the scales is achieved at a speed which is now three times higher, but that the individual paper product is always detected at the same distance from the previous paper product and the subsequent paper product by the pressure rollers 11 or 14 to 17. This "constant distance of the detection point, regardless of the possible source of error, ensures that the original errors reappear with their intervals in a subsequent scale.

Nach Fig. 2 ist seitlich von den beiden Bandförderern 3 und 5 jeweils je eine Kurvenscheibe 30 vorgesehen, die den Lauf der seitlich vorstehenden, frei laufenden Walzen 11 bzw. 14 bis 17 bestimmen.According to FIG. 2, a cam disk 30 is provided on each side of the two belt conveyors 3 and 5, which determine the running of the laterally projecting, free-running rollers 11 and 14 to 17, respectively.

Während die Walzen im oberen Teil ihres Drehbereichs durch die Federbelastung in voll ausgefahrener Stellung umlaufen, werden sie durch die Aufladefläche 31 in der Kurvenscheibe 30 im unteren Drittel gegen die Wirkung der Federn 12 nach innen gedrückt, wobei an der Krümmungsstelle 32 das jeweilige Papierprodukt erfaßt wird.While the rollers in the upper part of their rotational range rotate in the fully extended position due to the spring load, they are pressed inward by the charging surface 31 in the cam plate 30 in the lower third against the action of the springs 12, the respective paper product being detected at the point of curvature 32 .

Nach der Krümmungsstelle 33 löst sich der Bandförderer 5 wieder vom Papierprodukt und läuft über die Umlenkwalzen 6, 7, 8, worauf dann das nächste Papierprodukt in der Einlaufstelle 20 erfaßt wird.After the point of curvature 33, the belt conveyor 5 is released from the paper product and runs over the deflection rollers 6, 7, 8, whereupon the next paper product is detected in the entry point 20.

Nach einer abgewandelten Ausführungsform kann der Stern zwar mit fünf Umlenkwalzen und der Bandförderer 5 z. B. mit vier Umlenkwalzen versehen sein ; es ist jedoch nicht erforderlich, daß die Umlenkwalzen des Sterns am dritten Bandförderer 5 - wie oben ausgeführt - mit mindestens zwei Walzen angreifen, sondern es ist dann nur eine Umlenkwalze des Sterns für die Andrückung notwendig.According to a modified embodiment, the star can with five deflection rollers and the belt conveyor 5 z. B. be provided with four deflection rollers; However, it is not necessary that the deflecting rollers of the star on the third belt conveyor 5 - as stated above - attack with at least two rollers, but only one deflecting roller of the star is then necessary for the pressing.

Weiterhin ist es möglich, statt der radialen Federgehäuse den Walzen 11, 14 bis 17 des Sterns jeweils je einen Lenker vorzusehen, welcher durch Federwirkung (Schenkelfedern) nach außen gedrückt wird.Furthermore, it is possible, instead of the radial spring housing, to provide the rollers 11, 14 to 17 of the star each with a link which is pressed outwards by spring action (leg springs).

Statt des als Widerlager ausgebildeten zweiten Bandförderers 3 kann auch ein zweiter Stern mit einem Bandförderer eingesetzt werden.Instead of the second belt conveyor 3 designed as an abutment, a second star with a belt conveyor can also be used.

Claims (8)

1. Process for altering the conveying speed of individual imbricate sheets or the like, in particular printed products, fed on a first conveyor belt or the like by means of a second conveyor belt (3) or the like and a third conveyor belt (5) or the like driven at a differing speed, and by means of pressure acting on the sheets or the like substantially perpendicular to the surface of the second conveyor belt (3), characterized in that the feed by the first conveyor belt or the like and the pressure acting on the sheets or the like by a mechanical pressure exerted by the third conveyor belt (5) on the second conveyor belt (3) take place at the same rhythm as the preceding delivery apparatus of the sheets or the like independently of the position of the front edge of the respective sheets or the like, and in that the mechanical pressure of the third conveyor belt on the second conveyor belt is maintained by a rectilinear parallel guidance over a part section of the conveying path of the sheets or the like.
2. Process according to claim 1, the third conveyor belt (5) or the like being driven at higher speed, characterized in that the sheets or the like are drawn apart until they are completely separated.
3. Apparatus for carrying out the process according to claim 1 or 2 having a first conveyor belt or the like for feeding the sheets or the like, a second conveyor belt (3) and a third conveyor belt (5) driven at differing speed relative to the latter, and means (11, 14, 15, 16, 17) for exerting a pressure on the sheets or the like when the second and third conveyor belts are brought together, characterized in that the means for exerting the mechanical pressure comprise at least three, preferably five, rollers, cylinders (11, 14, 15, 16, 17) or the' like which are resiliently mounted on a star whereof the tangential speed corresponds with the tangential speed of a preceding delivery apparatus for the sheets or the like, and in that the third conveyor belt (5) has at least one deflection roller or cylinder (6) which effects a recilinear parallel guidance.
4. Apparatus according to claim 3, characterized in that the third conveyor belt (5) or the like is constructed as an endless conveyor.
5. Apparatus according to claim 3 or 4, characterized in that the rollers, cylinders (14, 15, 16) or the like of the star are also constructed as deflection rollers, cylinders or the like of the third conveyor belt (5) or the like.
6. Apparatus according to one or more of claims 3 to 5, characterized in that each roller, cylinder (11, 14, 15, 16, 17) or the like of the star is independently sprung in the radial direction.
7. Apparatus according to one or more of claims 3 to 6, characterized in that the rollers, cylinders (11, 14, 15, 16, 17) or the like of the star are positively guided in the region of. the second conveyor belt (3) or the like and parallel thereto.
8. Apparatus according to claim 7, characterized in that the positive guidance comprises at least one cam disc (30) or the like arranged on one side of the second conveyor belt (3) or the like.
EP86101099A 1985-01-29 1986-01-28 Method and device for modifying the velocity of overlapping streams of paper products Expired - Lifetime EP0189897B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86101099T ATE50747T1 (en) 1985-01-29 1986-01-28 METHOD AND APPARATUS FOR CHANGING THE CONVEYING SPEED OF PAPER PRODUCTS LAYING OUT IN SHELLS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853502897 DE3502897A1 (en) 1985-01-29 1985-01-29 METHOD AND DEVICE FOR CHANGING THE CONVEYING SPEED OF PAPER-LAYING PAPER PRODUCTS
DE3502897 1985-01-29

Publications (3)

Publication Number Publication Date
EP0189897A2 EP0189897A2 (en) 1986-08-06
EP0189897A3 EP0189897A3 (en) 1988-02-17
EP0189897B1 true EP0189897B1 (en) 1990-03-07

Family

ID=6261043

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86101099A Expired - Lifetime EP0189897B1 (en) 1985-01-29 1986-01-28 Method and device for modifying the velocity of overlapping streams of paper products

Country Status (6)

Country Link
US (1) US4781368A (en)
EP (1) EP0189897B1 (en)
JP (1) JPS62153056A (en)
AT (1) ATE50747T1 (en)
CA (1) CA1262464A (en)
DE (1) DE3502897A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2654981B1 (en) * 1989-11-28 1995-06-16 Marinoni Harris Sa PRINTING FOLDER.
US4987991A (en) * 1990-03-30 1991-01-29 Marquip Inc. System for changing the speed of conveyed sheets while holding register
US5088590A (en) * 1990-03-30 1992-02-18 Marquip, Inc. System for changing the speed of conveyed sheets while holding register
WO1992012079A1 (en) * 1991-01-07 1992-07-23 Marquip, Inc. System for changing the speed of conveyed sheets while holding register
CH690435A5 (en) * 1995-12-05 2000-09-15 Ferag Ag Method and apparatus for braking, acceleration and / or directing conveyed printed products.
DE19726982B4 (en) * 1997-06-25 2005-12-29 Peter Prinz Device for producing multi-layer folded labels
DE10139405A1 (en) * 2001-08-17 2003-02-27 Jagenberg Querschneider Gmbh Device for cross-cutting material webs, in particular paper or cardboard webs

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GB769065A (en) * 1954-05-29 1957-02-27 Kristian Holmen Apparatus for the counting of sheets of paper, especially bank notes
US3084931A (en) * 1961-06-22 1963-04-09 Pitney Bowes Inc Document misregistration-correcting means
US3315956A (en) * 1964-06-22 1967-04-25 Smith And Winchester Mfg Compa High speed sheet feeding and overlapping system
US3459420A (en) * 1967-09-08 1969-08-05 Nat Graphics Corp Sheet unstacking and fanning machine
DE2114865B2 (en) * 1971-03-27 1973-05-30 Bielomatik Leuze & Co, 7442 Neuffen DEVICE FOR SHEDING BOWS
US3822793A (en) * 1972-04-14 1974-07-09 Stobb Dev Corp Inc Apparatus for stacking flexible sheets
DD101641A1 (en) * 1973-02-19 1973-11-12
DE2326563A1 (en) * 1973-05-24 1974-12-12 Windmoeller & Hoelscher DEVICE FOR CONVEYING AND STORING FLAT WORKPIECES
US3884102A (en) * 1974-01-09 1975-05-20 Advance Enterprises Inc Three knife trimming machine
CH652697A5 (en) * 1981-09-18 1985-11-29 Ferag Ag DEVICE FOR EXTENDING FLAT PRODUCTS INCLUDING IN A DOMESTIC FLOW, IN PARTICULAR PRINTED PRODUCTS.

Also Published As

Publication number Publication date
DE3502897A1 (en) 1986-08-07
EP0189897A3 (en) 1988-02-17
ATE50747T1 (en) 1990-03-15
JPS62153056A (en) 1987-07-08
EP0189897A2 (en) 1986-08-06
CA1262464A (en) 1989-10-24
US4781368A (en) 1988-11-01

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