EP0450338B1 - Method for lateral cutting of printed products made up of paper sheets - Google Patents

Method for lateral cutting of printed products made up of paper sheets Download PDF

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Publication number
EP0450338B1
EP0450338B1 EP91103546A EP91103546A EP0450338B1 EP 0450338 B1 EP0450338 B1 EP 0450338B1 EP 91103546 A EP91103546 A EP 91103546A EP 91103546 A EP91103546 A EP 91103546A EP 0450338 B1 EP0450338 B1 EP 0450338B1
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EP
European Patent Office
Prior art keywords
printed products
printed
knife
counter
cutting
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 - Lifetime
Application number
EP91103546A
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German (de)
French (fr)
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EP0450338A1 (en
Inventor
Kurt Heutschi
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.)
Grapha Holding AG
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Grapha Holding AG
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Publication date
Application filed by Grapha Holding AG filed Critical Grapha Holding AG
Publication of EP0450338A1 publication Critical patent/EP0450338A1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/0006—Cutting members therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B26D1/14—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter
    • B26D1/24—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter coacting with another disc cutter
    • B26D1/245—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter coacting with another disc cutter for thin material, e.g. for sheets, strips or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/06—Arrangements for feeding or delivering work of other than sheet, web, or filamentary form
    • B26D7/0625—Arrangements for feeding or delivering work of other than sheet, web, or filamentary form by endless conveyors, e.g. belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/0006—Cutting members therefor
    • B26D2001/0033—Cutting members therefor assembled from multiple blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/0006—Cutting members therefor
    • B26D2001/0046—Cutting members therefor rotating continuously about an axis perpendicular to the edge

Definitions

  • the present invention relates to a method for the lateral trimming of printed products consisting of paper sheets according to the preamble of patent claim 1.
  • the knife disc can be arranged above the counter knife. Then, according to the invention, each preceding printed product has to rest on the subsequent printed product.
  • the incoming shingled stream of printed products must be turned by 180 ° in its longitudinal axis before lateral trimming, since the leading edges of the shingled stream arriving from a folder are always on the top, i.e. each subsequent printed product rests on the previous printed product.
  • the cutting device can alternatively be arranged below the counter knife, in which case it is known per se Way each subsequent printed product rests on the previous printed product.
  • a conveying device 1 in accordance with the device known from CH-A-650 967, has three parallel, endless belts 2, which are guided over deflection rollers 3 and 4 seated on shafts 5 and 6 and by means of the shaft 6 are driven.
  • the upper runs of the belts 2 together with a sliding plate 7 form a transport plane 8, on which a scale flow 9 of printed products, that is to say folded paper sheets, is transported in the direction of the arrow shown.
  • three parallel, endless press belts 10 Above the scale stream 9, three parallel, endless press belts 10 are arranged, which are guided around deflection rollers 13 and 13 'seated on shafts 11 and 12, the shaft 12 being driven.
  • the belts 2 and 10 are driven at the same speed, the Press belts 10 press the shingled stream 9 against the transport plane 8, so that the individual printed sheets are immovable relative to one another.
  • a knife disk 17 and 18 is arranged above each of the two counter-measurements 14, 15, which are rotatably mounted on assigned drive shafts 19.
  • Each of the knife disks 17, 18 consists of a carrier plate 20 to which a plurality of knives 21 are attached.
  • the knives 21 are provided with a cutting edge 22 which cooperate with the cutting edges 16 of the counter knives 14, 15.
  • the cutting edges 22 preferably enclose the angles mentioned at the beginning with respect to the scale flow 9 or the transport plane 8.
  • the shingled stream 9 is continuously fed onto the conveyor device 1, pressed against the plane 8 by means of the belts 10 and at the same time transported further in the direction of the arrow.
  • the printed sheets are not stacked in the shingled stream 9 in the usual manner as they come from the printing press, namely not with leading edges of the printed sheets on the upper side of the shingled stream 9, that is to say on the knife side 21.
  • the shingled stream is fed to the conveying device 1 in such a way that the leading edges of the printed sheets lie on the side of the counter knives 14, 15 and therefore each preceding printed sheet in the shingled stream 9 lies on the following one Print sheet rests from above.
  • the knife disks 17 and 18 are also driven, their peripheral speed being substantially greater than that of the belts 2 and 10. Likewise, the parts of the printed sheets projecting beyond the cutting edges 16 of the counter knives 14 and 15 on the head and foot sides are separated from the knives 17 and 18. Lateral tearing and damage to the printed sheets no longer occurs during the cutting process due to the 180 ° orientation of the overlapping printed sheets in the scale stream 9.
  • the shingled stream coming from the printing machine must generally be turned through 180 ° in its longitudinal axis before it is introduced into the conveying device 1.
  • Suitable turning devices are known, for example from DE-A-32 21 153, and can easily be connected upstream of the conveyor device 1.
  • the aforementioned orientation of the scale flow with respect to the counter knife can be achieved without this being used.
  • the exemplary embodiment comprises a conveyor 24 which is essentially of the same design as the conveyor 1 of FIGS. 1 and 2.
  • the conveyor 24 in turn has a pair of three parallel, endless belts 2 and 10, between which a shingled stream of printed products 25 (folded paper sheet) is transported in the direction of the arrow.
  • no sliding plate 7 (FIGS. 1, 2) is arranged here.
  • the lower sections of the three parallel bands 10 are prevented from evading by rollers 26.
  • rollers 27 are arranged on the inside of the upper sections of the belts, which are individually subjected to the force of springs 28.
  • the lower sections of the upper belts 10 accordingly perform the function of a transport surface 29 corresponding to the sliding plate 7 in FIGS. 1 and 2.
  • the two counter-knives 14 and 15 adjoin the transport surface 29, which can be fixed or rotating and which lie with their lower cutting edges 16 in the plane of the transport surface 29.
  • Under each of the two counter knives 14, 15 are the same knife disks 17, 18 as shown in FIGS. 1 and 2, which consist of the carrier plates 20 and the plurality of knives 21 with cutting edges 22.
  • the cutting edges 22 of the knives 21 interact with the cutting edges 16 of the counter knives 14, 15. It can be seen that in the exemplary embodiment of FIGS. 3, 4 the knife disks 17, 18 are arranged on the lower side of the overlapping transported printed products 25 and the counter knives 14, 15 on the upper side thereof.
  • the scale flow of the printed products 25 is designed according to the invention in such a way that the leading edges 30 of the overlapping transported printed products 25 are on the side of the counter knives 14, 15. Each subsequent printed product 25 thus lies on top of the previous printed product 25. Because this design of the imbricated flow of the printed products 25 corresponds to the position of the overlapping printed products when leaving the printing press, there is no need to turn the imbricated flow beforehand.

Abstract

A conveying device (1), having bottom and top continuous belts (2, 10), transports printed products (9), such as brochures, newspapers and the like, in an overlapping formation towards a cutting apparatus. The cutting apparatus has a rotating cutter disc (17) which operates against a counter-cutter (14) and is fitted with a plurality of cutters (21). The counter-cutter (14) is arranged with a counter-cutting edge in a transport plane (7) on the one side of the printed products (9) transported in overlapping formation. The leading edges (23) of the printed products (9) transported in overlapping formation are situated on the side of the counter-cutter (14), each preceding printed product (9) resting on the subsequent printed product (9). As a result, a smooth cut is achieved without the risk of tearing the paper sheet. <IMAGE>

Description

Die vorliegende Erfindung bezieht sich auf ein Verfahren zum seitlichen Beschneiden von aus Papierbogen bestehenden Druckprodukten gemäss dem Oberbegriff des Patentanspruchs 1.The present invention relates to a method for the lateral trimming of printed products consisting of paper sheets according to the preamble of patent claim 1.

Um zu erreichen, dass auch bei relativ dicken Druckprodukten mit hoher Leistung im laufenden Schuppenstrom der Druckprodukte ein sauberer Kopf-, Fuss- und/oder Vorderschnitt erzielt wird, ist aus der CH-A- 650 967 bekannt, die überlappenden Druckprodukte derart durch die Schneidvorrichtung zu führen, dass ihre vorangehende Kante der Messerscheibe zugewandt ist. Dabei schliessen die Schneidkanten der Messer beim Auftreffen auf die Papierbogen der Druckprodukte mit der Förderebene einen Winkel von 0 bis 15° und bei der stärksten Überlappung mit dem Gegenmesser einen Winkel von 15 bis 45° ein.In order to ensure that a clean head, foot and / or front cut is achieved in the running scale flow of the printed products even with relatively thick printed products with a high output, it is known from CH-A-650 967 that the overlapping printed products in this way by the cutting device to ensure that its leading edge faces the cutter disc. The cutting edges of the knives form an angle of 0 to 15 ° with the conveying plane when they hit the paper sheets of the printed products and an angle of 15 to 45 ° with the strongest overlap with the counter knife.

In der Praxis hat es sich nun aber gezeigt, dass trotz dieser an sich günstigen Schneidmassnahme bei Druckprodukten mit höherer Seitenzahl die obenliegenden Druckprodukte durch die von oben wirkende Schnittkraft einreissen, und zwar an einer Stelle, die etwa in der Mitte in Längsrichtung der zu beschneidenden Seiten der Druckprodukte liegt. Durch eine Änderung des Schnittwinkels bei der stärksten Überlappung der Messer mit dem Gegenmesser wie auch durch eine Änderung der Drehzahl und der Form des Gegenmessers konnte keine wesentliche Verbesserung dieser nachteiligen Erscheinung, die auch bei Schneideinrichtungen anderer Art auftritt, erzielt werden.In practice, however, it has now been shown that despite this per se advantageous cutting measure for printed products with a larger number of pages, the printed products lying on top tear due to the cutting force acting from above, specifically at a point approximately in the middle in the longitudinal direction of the sides to be cut of the printed products. By changing the cutting angle with the strongest overlap of the knives with the counter knife as well as by changing the speed and the shape of the counter knife, no significant improvement in this disadvantageous phenomenon, which also occurs in cutting devices of other types, could be achieved.

Es ist Aufgabe der vorliegenden Erfindung, den erwähnten Nachteil zu beheben und ein Verfahren vorzuschlagen, welches ein glattes seitliches Beschneiden von relativ dicken Druckprodukten wie Broschüren, Zeitschriften, usw. ohne seitliche Einreissgefahr ermöglicht.It is an object of the present invention to remedy the disadvantage mentioned and to propose a method which enables a smooth lateral trimming of relatively thick printed products such as brochures, magazines, etc. without the risk of lateral tearing.

Erfindungsgemäss wird diese Aufgabe gelöst durch die Merkmale des Anspruchs 1.According to the invention, this object is achieved by the features of claim 1.

Überraschenderweise hat es sich erwiesen, dass diese einfache und im Gegensatz zu den überlieferten Regeln der Ausbildung des Schuppenstroms der transportierten Druckprodukte stehende Massnahme in jedem Fall ein einwandfreies seitliches Beschneiden der Druckprodukte bewirkt.Surprisingly, it has been found that this simple measure, which is contrary to the traditional rules for the formation of the scale flow of the transported printed products, in any case brings about a perfect lateral trimming of the printed products.

In üblicher Weise kann die Messerscheibe oberhalb des Gegenmessers angeordnet sein. Dann hat nach der Erfindung jedes vorangehende Druckprodukt auf dem nachfolgenden Druckprodukt aufzuliegen. Mit anderen Worten ist der ankommende Schuppenstrom der Druckprodukte vor dem seitlichen Beschneiden in seiner Längsachse um 180° zu wenden, da im von einem Falzapparat ankommenden Schuppenstrom sich die vorlaufenden Kanten immer auf der Oberseite befinden, das heisst jedes nachfolgende Druckprodukt auf dem vorangehenden Druckprodukt aufliegt.In the usual way, the knife disc can be arranged above the counter knife. Then, according to the invention, each preceding printed product has to rest on the subsequent printed product. In other words, the incoming shingled stream of printed products must be turned by 180 ° in its longitudinal axis before lateral trimming, since the leading edges of the shingled stream arriving from a folder are always on the top, i.e. each subsequent printed product rests on the previous printed product.

Wenn der ankommende Schuppenstrom nicht um 180° gewendet werden soll, kann alternativ die Schneidvorrichtung unterhalb des Gegenmessers angeordnet werden, wobei dann in an sich bekannter Weise jedes nachfolgende Druckprodukt auf dem vorangehenden Druckprodukt aufliegt.If the incoming stream of flakes is not to be turned through 180 °, the cutting device can alternatively be arranged below the counter knife, in which case it is known per se Way each subsequent printed product rests on the previous printed product.

Ausführungsbeispiele der erfindungsgemässen Einrichtung werden nachstehend anhand der Zeichnungen erläutert. Es zeigen:

  • Fig. 1 einen vertikalen Längsschnitt durch ein erstes Ausführungsbeispiel entsprechend dem Schnitt I - I in Fig. 2;
  • Fig. 2 einen Schnitt längs der Linie II - II ind Fig. 1;
  • Fig. 3 einen vertikalen Längsschnitt durch ein zweites Ausführungsbeispiel entsprechend dem Schnitt III - III in Fig. 3; und
  • Fig. 4 einen Schnitt längs der Linie IV - IV in Fig. 3.
Exemplary embodiments of the device according to the invention are explained below with reference to the drawings. Show it:
  • Figure 1 is a vertical longitudinal section through a first embodiment according to section I - I in Fig. 2.
  • FIG. 2 shows a section along the line II-II in FIG. 1;
  • 3 shows a vertical longitudinal section through a second exemplary embodiment corresponding to section III-III in FIG. 3; and
  • 4 shows a section along the line IV-IV in FIG. 3.

Gemäss Fig. 1 und 2 weist in Uebereinstimmung mit der aus der CH-A-650 967 bekannten Einrichtung eine Fördereinrichtung 1 drei parallele, endlose Bänder 2 auf, die über auf Wellen 5 bzw. 6 sitzende Umlenkrollen 3 und 4 geführt und mittels der Welle 6 angetrieben sind. Die oberen Trums der Bänder 2 bilden zusammen mit einem Gleitblech 7 eine Transportebene 8, auf der ein Schuppenstrom 9 von Druckprodukten, das heisst gefalzten Papierbogen, in Richtung des eingezeichneten Pfeiles transportiert wird. Ueber dem Schuppenstrom 9 sind drei parallele, endlose Pressbänder 10 angeordnet, die um auf Wellen 11 und 12 sitzende Umlenkrollen 13 und 13' geführt sind, wobei die Welle 12 angetrieben ist. Die Bänder 2 und 10 sind mit gleicher Geschwindigkeit angetrieben, wobei die Pressbänder 10 den Schuppenstrom 9 gegen die Transportebene 8 pressen, so dass die einzelnen Druckbogen relativ zueinander unverschiebbar sind.1 and 2, in accordance with the device known from CH-A-650 967, a conveying device 1 has three parallel, endless belts 2, which are guided over deflection rollers 3 and 4 seated on shafts 5 and 6 and by means of the shaft 6 are driven. The upper runs of the belts 2 together with a sliding plate 7 form a transport plane 8, on which a scale flow 9 of printed products, that is to say folded paper sheets, is transported in the direction of the arrow shown. Above the scale stream 9, three parallel, endless press belts 10 are arranged, which are guided around deflection rollers 13 and 13 'seated on shafts 11 and 12, the shaft 12 being driven. The belts 2 and 10 are driven at the same speed, the Press belts 10 press the shingled stream 9 against the transport plane 8, so that the individual printed sheets are immovable relative to one another.

Seitlich schliessen an das Gleitblech 7 zwei ortsfeste Gegenmesser 14 bzw. 15 an, die mit ihren oberen Schneidkanten 16 in der Transportebene 8 liegen (Fig. 2). Ueber jedem der beiden Gegenmessen 14, 15 ist je eine Messerscheibe 17 bzw. 18 angeordnet, welche auf zugeordneten Antriebswellen 19 drehfest aufgesetzt sind. Jede der Messerscheiben 17, 18 besteht aus einem Trägerteller 20, an dem eine Vielzahl von Messern 21 befestigt sind. Die Messer 21 sind mit einer Schneidkante 22 versehen, die mit den Schneidkanten 16 der Gegenmesser 14, 15 zusammenwirken. Vorzugsweise schliessen die Schneidkanten 22 bezüglich des Schuppenstroms 9 bzw. der Transportebene 8 die eingangs genannten Winkel ein.Laterally, two fixed counter knives 14 and 15 adjoin the sliding plate 7, which lie with their upper cutting edges 16 in the transport plane 8 (FIG. 2). A knife disk 17 and 18 is arranged above each of the two counter-measurements 14, 15, which are rotatably mounted on assigned drive shafts 19. Each of the knife disks 17, 18 consists of a carrier plate 20 to which a plurality of knives 21 are attached. The knives 21 are provided with a cutting edge 22 which cooperate with the cutting edges 16 of the counter knives 14, 15. The cutting edges 22 preferably enclose the angles mentioned at the beginning with respect to the scale flow 9 or the transport plane 8.

Beim Betrieb der Einrichtung wird der Schuppenstrom 9 kontinuierlich auf die Fördereinrichtung 1 geleitet, mittels der Bänder 10 gegen die Ebene 8 gepresst und dabei gleichzeitig in Richtung des Pfeils weitertransportiert. Aus Fig. 1 ist jedoch ersichtlich, dass im Schuppenstrom 9 die Druckbogen nicht in der üblichen Weise gestapelt sind, wie sie aus der Druckmaschine kommen, nämlich nicht mit vorlaufenden Kanten der Druckbogen auf der Oberseite des Schuppenstroms 9, das heisst auf der Seite der Messer 21. Vielmehr ist der Schuppenstrom der Fördereinrichtung 1 derart zugeführt, dass die vorlaufenden Kanten der Druckbogen auf der Seite der Gegenmesser 14, 15 liegen und deshalb jeder vorangehende Druckbogen im Schuppenstrom 9 auf dem nachfolgenden Druckbogen von oben her aufliegt. Wie bei der bekannten Einrichtung werden auch die Messerscheiben 17 und 18 angetrieben, wobei ihre Umfangsgeschwindigkeit wesentlich grösser als diejenige der Bänder 2 und 10 ist. Ebenso werden die kopf- und fusseitig über die Schneidkanten 16 der Gegenmesser 14 und 15 hinausragenden Teile der Druckbogen von den Messern 17 und 18 abgetrennt. Ein seitliches Einreissen und Beschädigen der Druckbogen tritt aber beim Schneidvorgang zufolge der um 180⁰ gewendeten Orientierung der überlappenden Druckbogen im Schuppenstrom 9 nicht mehr auf.When the device is in operation, the shingled stream 9 is continuously fed onto the conveyor device 1, pressed against the plane 8 by means of the belts 10 and at the same time transported further in the direction of the arrow. However, it can be seen from FIG. 1 that the printed sheets are not stacked in the shingled stream 9 in the usual manner as they come from the printing press, namely not with leading edges of the printed sheets on the upper side of the shingled stream 9, that is to say on the knife side 21. Rather, the shingled stream is fed to the conveying device 1 in such a way that the leading edges of the printed sheets lie on the side of the counter knives 14, 15 and therefore each preceding printed sheet in the shingled stream 9 lies on the following one Print sheet rests from above. As in the known device, the knife disks 17 and 18 are also driven, their peripheral speed being substantially greater than that of the belts 2 and 10. Likewise, the parts of the printed sheets projecting beyond the cutting edges 16 of the counter knives 14 and 15 on the head and foot sides are separated from the knives 17 and 18. Lateral tearing and damage to the printed sheets no longer occurs during the cutting process due to the 180 ° orientation of the overlapping printed sheets in the scale stream 9.

Um die beschriebene, erfindungsgemässe Lage der Druckbogen des Schuppenstroms bezüglich der Gegenmesser 14, 15 zu erzielen, muss im allgemeinen der von der Druckmaschine kommende Schuppenstrom vor seiner Einführung in die Fördereinrichtung 1 in seiner Längsachse um 180⁰ gewendet werden. Geeignete Wendeeinrichtungen sind bekannt, beispielsweise aus der DE-A-32 21 153, und können der Fördereinrichtung 1 ohne weiteres vorgeschaltet werden.In order to achieve the described position according to the invention of the printed sheets of the shingled stream with respect to the counter knives 14, 15, the shingled stream coming from the printing machine must generally be turned through 180 ° in its longitudinal axis before it is introduced into the conveying device 1. Suitable turning devices are known, for example from DE-A-32 21 153, and can easily be connected upstream of the conveyor device 1.

Gemäss dem weiteren, in den Fig. 3 und 4 dargestellten Ausführungsbeispiel kann die erwähnte Orientierung des Schuppenstroms bezüglich der Gegenmesser erreicht werden, ohne dass dieser vorgewendet wird.According to the further exemplary embodiment shown in FIGS. 3 and 4, the aforementioned orientation of the scale flow with respect to the counter knife can be achieved without this being used.

Das Ausführungsbeispiel umfasst eine Fördereinrichtung 24, die im wesentlichen gleich ausgebildet ist, wie die Fördereinrichtung 1 der Fig. 1 und 2. Somit weist die Fördereinrichtung 24 wiederum ein Paar von drei parallelen, endlosen Bändern 2 und 10 auf, zwischen welchen ein Schuppenstrom von Druckprodukten 25 (gefalzten Papierbogen) in Richtung des eingezeichneten Pfeiles transportiert wird. Unterschiedlich ist, dass hier kein Gleitblech 7 (Fig. 1, 2) angeordnet ist. Vielmehr sind die unteren Abschnitte der drei parallelen Bänder 10 durch Rollen 26 am Ausweichen nach oben gehindert. Um die Papierbogen 25 des Schuppenstroms gegen diese unteren Abschnitte der Bänder 10 zu drücken, sind auf der Innenseite der oberen Abschnitte der Bänder 2 weitere Rollen 27 angeordnet, die einzeln der Kraft von Federn 28 ausgesetzt sind. Die unteren Abschnitte der oberen Bänder 10 üben demnach die Funktion einer Transportfläche 29 entsprechend dem Gleitblech 7 der Fig. 1 und 2 aus.The exemplary embodiment comprises a conveyor 24 which is essentially of the same design as the conveyor 1 of FIGS. 1 and 2. Thus, the conveyor 24 in turn has a pair of three parallel, endless belts 2 and 10, between which a shingled stream of printed products 25 (folded paper sheet) is transported in the direction of the arrow. The difference is that no sliding plate 7 (FIGS. 1, 2) is arranged here. Rather, the lower sections of the three parallel bands 10 are prevented from evading by rollers 26. In order to press the paper sheets 25 of the shingled stream against these lower sections of the belts 10, 2 further rollers 27 are arranged on the inside of the upper sections of the belts, which are individually subjected to the force of springs 28. The lower sections of the upper belts 10 accordingly perform the function of a transport surface 29 corresponding to the sliding plate 7 in FIGS. 1 and 2.

Seitlich schliessen an die Transportfläche 29 die beiden Gegenmesser 14 und 15 an, die feststehend oder rotierend sein können und die mit ihren unteren Schneidkanten 16 in der Ebene der Transportfläche 29 liegen. Unter jedem der beiden Gegenmesser 14, 15 sind die gleichen Messerscheiben 17, 18 wie gemäss Fig. 1 und 2 angeordnet, die aus den Trägertellern 20 und der Vielzahl von Messern 21 mit Schneidkanten 22 bestehen. Die Schneidkanten 22 der Messer 21 wirken mit den Schneidkanten 16 der Gegenmesser 14, 15 zusammen. Es ist ersichtlich, dass beim Ausführungsbeispiel der Fig. 3, 4 die Messerscheiben 17, 18 auf der unteren Seite der überlappend transportierten Druckprodukte 25 und die Gegenmesser 14, 15 auf deren oberen Seite angeordnet sind.Laterally, the two counter-knives 14 and 15 adjoin the transport surface 29, which can be fixed or rotating and which lie with their lower cutting edges 16 in the plane of the transport surface 29. Under each of the two counter knives 14, 15 are the same knife disks 17, 18 as shown in FIGS. 1 and 2, which consist of the carrier plates 20 and the plurality of knives 21 with cutting edges 22. The cutting edges 22 of the knives 21 interact with the cutting edges 16 of the counter knives 14, 15. It can be seen that in the exemplary embodiment of FIGS. 3, 4 the knife disks 17, 18 are arranged on the lower side of the overlapping transported printed products 25 and the counter knives 14, 15 on the upper side thereof.

Der Schuppenstrom der Druckprodukte 25 ist erfindungsgemäss so gestaltet, dass sich die vorlaufenden Kanten 30 der überlappend transportierten Druckprodukte 25 auf der Seite der Gegenmesser 14, 15 befinden. Somit liegt jedes nachfolgende Druckprodukt 25 auf dem vorangehenden Druckprodukt 25 von oben her auf. Da diese Gestaltung des Schuppenstroms der Druckprodukte 25 der Lage der überlappenden Druckprodukte beim Verlassen der Druckmaschine entspricht, erübrigt sich ein vorgängiges Wenden des Schuppenstroms.The scale flow of the printed products 25 is designed according to the invention in such a way that the leading edges 30 of the overlapping transported printed products 25 are on the side of the counter knives 14, 15. Each subsequent printed product 25 thus lies on top of the previous printed product 25. Because this design of the imbricated flow of the printed products 25 corresponds to the position of the overlapping printed products when leaving the printing press, there is no need to turn the imbricated flow beforehand.

Es besteht die Möglichkeit, in nicht dargestellter Weise die erfindungsgemässe Massnahme auch dadurch zu verwirklichen, dass bei einer Einrichtung der eingangs genannten Art der Drehsinn der rotierenden Messerscheiben 17, 18 umgekehrt wird, wobei dann selbstverständlich auch die Schneidkanten 22 der Messer 21 auf der anderen Längsseite der Messer 21 ausgebildet werden müssen. Da in diesem Fall jedoch die Richtung der Umfangsbewegung der Schneidkanten 22 am Ort ihrer Einwirkung auf die Druckprodukte entgegengesetzt der Transportrichtung der Druckprodukte ist, können unter Umständen andere nachteilige Schwierigkeiten beim Schneidevorgang auftreten, auch wenn die Messer 21 mit wesentlich höherer Umfangsgeschwindigkeit als die Transportgeschwindigkeit der Bänder 2, 10 rotieren.There is the possibility, in a manner not shown, of also realizing the measure according to the invention by reversing the direction of rotation of the rotating knife disks 17, 18 in a device of the type mentioned at the outset, with the cutting edges 22 of the knives 21 on the other long side then also, of course the knife 21 must be formed. In this case, however, since the direction of the circumferential movement of the cutting edges 22 at the location where they act on the printed products is opposite to the transport direction of the printed products, other disadvantageous difficulties can arise during the cutting process, even if the knives 21 have a substantially higher peripheral speed than the transport speed of the tapes 2, 10 rotate.

Claims (4)

  1. Process for lateral cutting of printed products (9, 25) made of sheets of paper by means of a device comprising a conveying mechanism (1, 24) which transports the printed products (9, 25) in an overlapping manner towards a cutting device, in which respect the cutting device comprises a rotating knife disc (17, 18), which is provided with a plurality of knives (21) and which works towards a countering knife (14, 15), and the countering knife (14, 15) is arranged with a counter-cutting edge (16) in a transport plane (8, 29) on the one side of the overlappingly transported printed products (9, 25), characterised in that the advanced edges (23, 30) of the overlappingly transported printed products (9, 25) are on the side of the countering knife (14, 15).
  2. Process according to claim 1, characterised in that each printed product (9) moving forward in the conveying direction is placed to overlap the next one in such a manner that the top of the printed products (9) are oriented towards the cutting device (17, 18, 21), and its bottom side is facing towards the countering knife (14, 15).
  3. Process according to claim 1, characterised in that each printed product (9) moving forward in the conveying direction is placed to overlap the one ahead in such a manner that the top of the printed products (9) is oriented towards the countering knife (14, 15) and its bottom side is facing towards the cutting device (17, 18, 21).
  4. Process according to claim 3, characteried in that the printed products (25) are guided in the area of the conveying device (24) between an upper fixed belt guide (10) which abuts the top of the printed products (25) and a lower belt guide (2) which abuts the bottom of the printed products (25), and that the bottom belt guide (2) is held in abutment with the printed products (25) by means of an adjustable spring force.
EP91103546A 1990-04-02 1991-03-08 Method for lateral cutting of printed products made up of paper sheets Expired - Lifetime EP0450338B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1093/90A CH681363A5 (en) 1990-04-02 1990-04-02
CH1093/90 1990-04-02

Publications (2)

Publication Number Publication Date
EP0450338A1 EP0450338A1 (en) 1991-10-09
EP0450338B1 true EP0450338B1 (en) 1994-09-21

Family

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Application Number Title Priority Date Filing Date
EP91103546A Expired - Lifetime EP0450338B1 (en) 1990-04-02 1991-03-08 Method for lateral cutting of printed products made up of paper sheets

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EP (1) EP0450338B1 (en)
JP (1) JPH04223892A (en)
AT (1) ATE111799T1 (en)
CH (1) CH681363A5 (en)
DE (1) DE59102984D1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19620650B4 (en) * 1996-05-22 2006-09-21 Gämmerler AG Method and device for cutting paper products conveyed in a shingled stream
DE19629561C2 (en) * 1996-07-22 2003-07-03 Slobodan Djuranovic Segment knife for a rotary cutting machine, the scope of which is composed of a large number of segments
DE29712557U1 (en) * 1997-07-16 1997-09-11 Widia Gmbh Cutters, especially book spine cutters
DE10044131B4 (en) * 2000-09-06 2005-12-01 Zanders Feinpapiere Ag Device and method for separating cut edges of flat parts and for guiding circulating conveyor belts
EP1273401A1 (en) * 2001-07-05 2003-01-08 Grapha-Holding AG Device for cutting products with a draw-cut motion
DE50306512D1 (en) * 2003-08-28 2007-03-29 Mueller Martini Holding Ag Method for grinding the knives of a rotary cutting machine and rotary cutter for carrying out the method
DE102004020256A1 (en) * 2004-04-26 2005-11-17 Gramatec Gmbh Cutting knife for rotary cutting machines
EP1952956A1 (en) * 2007-02-02 2008-08-06 Müller Martini Holding AG Device for cutting printed products fed in an overlapping formation
CN113840736B (en) * 2019-05-28 2024-03-29 惠普发展公司，有限责任合伙企业 Bidirectional cutting module

Family Cites Families (4)

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Publication number Priority date Publication date Assignee Title
DE2915582A1 (en) * 1979-04-18 1980-10-30 Grapha Graphische Maschinen Ha METHOD FOR CUTTING SHEETS, STACKS OF PLANTS, STAPLES OR THE LIKE, AND DEVICE FOR CARRYING OUT THE METHOD
CH650967A5 (en) * 1981-07-15 1985-08-30 Grapha Holding Ag DEVICE FOR SIDE CUTTING OF PAPER SHEETS.
DE3500632A1 (en) * 1985-01-10 1986-07-10 Maschinenbau Oppenweiler Binder GmbH & Co, 7155 Oppenweiler DEVICE FOR CUTTING ONE OR SEVERAL WHOLE OR PARTLY OVERLAYING ARCHES
DE3524512A1 (en) * 1985-07-09 1987-01-22 Adolf Weingartner DEVICE FOR CONTINUOUS LONG-EDGE CUTTING OF ROD-SHAPED PRINTED PRODUCTS

Also Published As

Publication number Publication date
JPH04223892A (en) 1992-08-13
CH681363A5 (en) 1993-03-15
DE59102984D1 (en) 1994-10-27
EP0450338A1 (en) 1991-10-09
ATE111799T1 (en) 1994-10-15

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