EP2248748A1 - Device for positioning sheets in a folding machine - Google Patents

Device for positioning sheets in a folding machine Download PDF

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Publication number
EP2248748A1
EP2248748A1 EP10159978A EP10159978A EP2248748A1 EP 2248748 A1 EP2248748 A1 EP 2248748A1 EP 10159978 A EP10159978 A EP 10159978A EP 10159978 A EP10159978 A EP 10159978A EP 2248748 A1 EP2248748 A1 EP 2248748A1
Authority
EP
European Patent Office
Prior art keywords
sheet
transport direction
sensor
sheet transport
bogenpositionierelement
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP10159978A
Other languages
German (de)
French (fr)
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EP2248748B1 (en
Inventor
Markus Belmann
Klaus-Peter Schreiber
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.)
Heidelberger Druckmaschinen AG
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Heidelberger Druckmaschinen AG
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Publication of EP2248748A1 publication Critical patent/EP2248748A1/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
    • B65H45/00—Folding thin material
    • B65H45/12—Folding articles or webs with application of pressure to define or form crease lines
    • B65H45/18—Oscillating or reciprocating blade folders
    • 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
    • B65H29/52—Stationary guides or smoothers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H45/00—Folding thin material
    • B65H45/12—Folding articles or webs with application of pressure to define or form crease lines
    • B65H45/14—Buckling folders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/60—Other elements in face contact with handled material
    • B65H2404/61—Longitudinally-extending strips, tubes, plates, or wires
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/60—Other elements in face contact with handled material
    • B65H2404/61—Longitudinally-extending strips, tubes, plates, or wires
    • B65H2404/612—Longitudinally-extending strips, tubes, plates, or wires and shaped for curvilinear transport path
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/10—Means using fluid made only for exhausting gaseous medium
    • B65H2406/12—Means using fluid made only for exhausting gaseous medium producing gas blast
    • B65H2406/122—Nozzles

Definitions

  • the invention relates to a device for positioning sheet-shaped or sheet-like elements preferably in a combination folding machine or a sword folding machine according to the preamble of claim 1.
  • the duration of the calming phase ie the time required for the now restlessly moving bow to lie flat and aligned in front of the stop, reduces the possible production output.
  • Object of the present invention is therefore to provide an alternative device for sheet positioning, which allows low settling times of the sheet when hitting the front stop especially a sword folder and at the same time avoids marks on the sheet.
  • a device should in the case of use in a folding machine a high folding performance and the creation of high-quality products are made possible.
  • the device according to the invention serves to position sheets moved in a sheet transport direction, preferably in a sword or a combination folding machine.
  • the device has at least one transport belt located in a sheet transport plane on which the sheets can be conveyed against at least one stop.
  • the device has at least one Bogenpositionierelement which is movable in or against the sheet transport direction and adjustable in dependence of the sheet format behind the trailing edge of the calmed arc when the sheet rests with its leading edge against the stop.
  • the at least one sheet positioning element advantageously has a sheet guide surface which rises in the sheet transport direction and an sheet restraining surface which is oriented substantially perpendicular to the sheet transport plane.
  • At least one blowing device is arranged above the at least one conveyor belt for generating a directed against the conveyor belt blast air.
  • the blowing device is advantageously arranged in the sheet transport direction between the at least one Bogenpositionierelement and the stop arranged.
  • blowing device arranged above the sheet transport plane
  • suction device arranged below the sheet transport plane
  • the blowing device is clocked controlled and is controlled so that it always provides a blast when there is an arc between the blowing and conveyor belt.
  • the blowing device has at least one blowing nozzle.
  • this has a sensor for detecting the presence of a sheet.
  • the sensor can be designed as a light scanner. Alternatively, other optical sensors or cameras can be used.
  • the sensor is arranged between the at least one Bogenpositionierelement and the stop viewed in the sheet transport direction. As a result, a sheet can then be detected by the sensor when it is brought to the stop with its sheet leading edge to the plant.
  • the sensor is mounted in front of the sheet positioning element. The determination of the position of the sheet and the control of the timing for activating the blowing device may then be accomplished by way detection, e.g. be realized by means of an angular encoder.
  • the blowing devices and the sensor are signal-technically connected to a controller. This makes it possible that the blowing device can be controlled based on the measured values of the sensor, d. H. If the sensor detects the presence of a bow, the blowing device is controlled such that it provides a blown air.
  • the at least one Bogenpositionierelement and the blowing device and / or the sensor mechanically coupled to each other, for example, by being attached to a common carrier, and together displaceable in or against the sheet transport direction.
  • the Bogenpositionierelement for adaptation to the sheet format is automatically displaced by a drive in or against the sheet transport direction.
  • the drive in particular controllable electric motor, can be controlled by the machine control of the folding machine, which has information about the sheet format.
  • the at least one Bogenpositionierelement is additionally displaceable transversely to the sheet transport direction. This adaptation to the sheet format is possible, and the Bogenpositionierelement can z. B. be set centrally to be positioned sheet.
  • Fig. 1 shows a device 10 according to the invention for positioning of sheets 100.
  • a sheet 100 is moved by at least one conveyor belt 1, which rotates permanently in the sheet transport direction T.
  • Fig. 1 only one conveyor belt 1 shown, parallel to it and distributed over the machine width more conveyor belts, not shown, may be present. Instead of ribbons can Other transport organs such as ropes are used.
  • the secure support of a sheet 100 on the conveyor belt 1 and thus a secure transport of the sheet 100 is ensured by transport rollers 3.
  • Fig. 1 is such a role 3 exemplified.
  • a ramp-shaped or wedge-shaped Bogenpositionierelement 12 is attached to the tape carrier 2. If the folded sheet leading edge 100.1 of the folded sheet 100 passes through the sheet positioning element 12, the sheet 100 is lifted by a height difference from the transport belt 1 or the sheet transport plane E (not shown). When the sheet 100 reaches the stop 11 with its sheet leading edge 100.1, the sheet trailing edge 100.2 is approximately 1 to 2 mm seen in the sheet transport direction T downstream of the sheet retention surface 12.2 of the sheet positioning element 12 A sensor 14 designed as a light sensor detects the presence of a sheet 100 and reports it to a control device 15.
  • An alternatively positioned sensor 14 is not located between the sheet positioning element 12 and the leading edge stop 11, but instead Fig. 4 shown - in front of the Bogenpositionierelement 12.
  • the control device 15 in turn controls a blower 13, which provides a blown air B through a blowing nozzle 13.1.
  • the blowing device 13 can be supplied, for example, from a central producer of the folding machine via a connection 13.2.
  • the blowing air B is directed against the resting on the conveyor belt 1 sheet 100.
  • the use of the blown air B ensures that the sheet trailing edge 100.2 of the sheet 100 is held in the sheet transport plane E (not shown) and thus by the amount of height difference of conveyor belt 1 and the top edge of the sheet positioner 12 below the top edge of the sheet positioner 12 at the sheet retention surface 12.2 can strike.
  • a jumping back of the sheet 100 by more than one to about two mm is thus positively prevented by the sheet retaining surface 12.2, which acts as a stop surface.
  • the settling time of the sheet 100 is significantly reduced compared to other conventional solutions. Since during the calming phase no bow loading elements act on the sheet 100, markings can be avoided.
  • blowing device 13 instead of the blowing device 13, other clocked lowerable hold-down devices such as a roller, a ball, a spring or a brush can be used.
  • the timing must be controlled very accurately. In particular, the hold-downs are lowered only in the moment in which a sheet 100 springs back against the Bogenpositionierelement 12.
  • FIGS. 2a-c Different variants of the Bogenpositionierelements 12 are shown.
  • the sheet positioning element 12 extends approximately over the width of a sheet 100.
  • Fig. 2b are provided a plurality of mutually parallel and distributed over the width of the sheet 100 Bogenpositionieriata 12.
  • Fig. 2c a Bogenpositionierelement 12 is used, which is transverse to the sheet transport direction T in the direction a adjustable.
  • FIGS. 3a-e show various embodiments of the ramp-shaped Bogenpositionierelements 12.
  • the Bogenpositionierelement 12 is formed as a wedge, with a Bogenleit configuration 12.1 and a sheet retaining surface 12.2, which are each made flat and meet at an acute angle to each other.
  • the Bogenpositionierelement 12 according to Fig. 3b also has a flat sheet guide surface 12.1, the sheet retaining surface 12.2, however, has an inwardly curved sheet retention surface 12.2.
  • the reverse case with a curved Bogenleit Structure 12.1 and a flat sheet retaining surface 12.2 is in Fig. 3c shown. According to an embodiment variant, not shown, both surfaces 12.1 and 12.2 may be curved.
  • Fig. 3a the Bogenpositionierelement 12 may be curved.
  • the sheet positioning member 12 is bent from a plate-shaped material such as a metal sheet. Further alternative and equivalent embodiments of the Bogenpositionierelements 12 will be apparent to those skilled in the illustrated examples. However, all the different embodiments of the Bogenpositionierelements 12 is common that the upstream in the sheet transport direction edge of Sheet guide surface 12.1 below and in the sheet transport direction downstream edge of the sheet guide surface 12.1 above the sheet transport plane E is located. In all embodiments of the sheet positioning element 12, the sheet retaining surface 12. 2 is designed in such a way that it adjoins the sheet guiding surface 12. 1 and extends below the sheet transport plane E. The embodiment according to Fig. 3e is similar to that of Fig. 3a ). Between the rising sheet guiding surface 12.1 and the vertical sheet retaining surface 12.2, however, there is still a horizontal intermediate surface.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Registering Or Overturning Sheets (AREA)

Abstract

The apparatus (10) has a conveying belt (1) located in a sheet conveyance direction, for conveying the sheet (100) towards the stopper (11). A sheet positioning portion (12) has a sheet guide surface (12.1) which is inclined toward the sheet conveyance direction, and a sheet support surface (12.2) provided perpendicular to the sheet conveyance surface.

Description

Die Erfindung betrifft eine Vorrichtung zum Positionieren von bogenförmigen bzw. blattförmigen Elementen vorzugsweise in einer Kombifalzmaschine oder einer Schwertfalzmaschine gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a device for positioning sheet-shaped or sheet-like elements preferably in a combination folding machine or a sword folding machine according to the preamble of claim 1.

Stand der TechnikState of the art

Bei kombinierten Taschenschwertfalzmaschinen, so genannten Kombifalzmaschinen, werden die Parallelbrüche in einer ersten Falzstation im Taschenfalzprinzip gefalzt, während die nachfolgenden Kreuzbrüche mit einem vertikal arbeitenden Falzschwert ausgeführt werden. Hierzu werden die gefalzten Bogen nach dem Parallelbruchausgang zu einer Kreuzbruchstation mittels Transportbändern schlupffrei transportiert. Um einen tatsächlich schlupffreien Transport zu gewährleisten, muss das transportierte flächige Gut niedergehalten und vertikal auf das Transportband gedrückt werden. Zur Erzeugung der hierzu erforderlichen vertikalen Anpresskraft werden sowohl Belastungskugeln als auch Führungsrollen eingesetzt. Derartige Belastungskugelsysteme sind beispielsweise aus dem deutschen Gebrauchsmuster DE 84 06 391 bekannt. In der letzten Zeit hat sich jedoch der Einsatz von Führungsrollen vermehrt durchgesetzt, die beispielsweise im deutschen Gebrauchsmuster DE 93 04 281 beschrieben sind. Diese weisen gegenüber dem Belastungskugelsystem besondere Vorteile auf, die beispielsweise darin bestehen, dass mit Führungsrollen eine spurgenaue Bogenführung erreicht werden kann.In combined pocket sword folding machines, so-called combination folding machines, the parallel breaks are folded in a first folding station in Taschenfalzprinzip, while the subsequent cross fractures are performed with a vertical folding blade. For this purpose, the folded sheets are transported after the parallel break output to a cross-break station by means of conveyor belts without slip. In order to ensure a truly slip-free transport, the transported flat material must be held down and pressed vertically onto the conveyor belt. To generate the vertical contact force required for this purpose, both load balls and guide rollers are used. Such load ball systems are for example from the German utility model DE 84 06 391 known. Recently, however, the use of guide rollers has increasingly prevailed, for example, in the German utility model DE 93 04 281 are described. These have particular advantages over the load ball system, which are, for example, that with guide rollers a true-to-sheet bowing can be achieved.

Bei heute üblichen Schwertfalzwerken, auch als Messerfalzwerke bezeichnet, wird ein Bogen mit voller Produktionsgeschwindigkeit gegen einen feststehenden Vorderanschlag gefahren. Die kinetische Energie der Bewegung spannt den Bogen wie eine Feder und wird dann als Rücksprung schlagartig frei. Beim Zurückspringen wandert der Bogen entgegen der Papierlaufrichtung, so dass seine Lage nicht mehr exakt bestimmt ist. Die Transportbänder laufen weiter und treiben den zurückgesprungenen Bogen wieder mit voller Geschwindigkeit gegen den Anschlag. Der Bogen prellt so lange, bis die Kraft der Bänder und Transporteinrichtungen in Richtung des Anschlags größer ist als die aus der Federkraft des Bogens resultierende Rückspringkraft. Nach einiger Zeit kommt der Bogen zur Ruhe und die Bänder laufen unter ihm durch. Der Bogen kann nun mit dem Schwert gefalzt werden.In today usual Schwertfalzwerken, also referred to as Messerfalzwerke, a sheet is driven at full production speed against a fixed front stop. The kinetic energy of the movement tightens the bow like a spring and then suddenly releases as a return. When jumping back, the sheet moves against the direction of paper travel, so that its position is no longer exactly determined. The conveyor belts continue to run and drive the returned arc back to the stop at full speed. The sheet bounces until the force of the belts and transport means in the direction of the stop is greater than the springback force resulting from the spring force of the sheet. After some time the bow comes to rest and the bands go under him. The bow can now be folded with the sword.

Die Dauer der Beruhigungsphase, also die Zeit, welche der sich nun unruhig hin und her bewegende Bogen benötigt, um plan und ausgerichtet vor dem Anschlag zum Liegen zu kommen, reduziert die mögliche Produktionsleistung.The duration of the calming phase, ie the time required for the now restlessly moving bow to lie flat and aligned in front of the stop, reduces the possible production output.

Das "Prellen" des Bogens wird umso stärker, je weiter der Bogen zurückspringen kann, da er beim wieder nach vorne Laufen weitere Energie zugeführt bekommt.The "bouncing" of the bow becomes stronger, the further the bow can jump back, as it receives more energy when running forward again.

Zum Vermeiden des Zurückspringens des Bogens von dem Vorderanschlag ist es bekannt, Bürsten an die Falzbogenhinterkante zur Endlagenfixierung des Falzbogens oder eine Bürstenleiste auf die Falzbogenoberseite zu stellen. Die Bürstenleiste, welche die Falzbogenoberseite abbremst, ist allerdings gerade für Falzbogen mit einem geringen Flächengewicht nachteilig, da eine symmetrische Anlage und damit ein gleichmäßiges Abbremsen nur schwer möglich ist. Zudem ist die Einstellung und Positionierung der Bürsten oder Bürstenleisten zeitaufwendig.In order to avoid jumping back of the sheet from the front stop, it is known to place brushes against the trailing edge of the trailing edge of the signature or a brush strip on the folded sheet top. However, the brush strip, which slows down the folded sheet top, is disadvantageous especially for folded sheets with a low basis weight, since a symmetrical system and thus a uniform braking is difficult. In addition, the adjustment and positioning of the brushes or brush strips is time consuming.

Mit den aus dem deutschen Gebrauchsmuster DE 93 04 281 bekannten Führungsrollen lässt sich das "Prellen" des Bogens bereits in vielen Anwendungsfällen recht gut vermeiden. Bei hohen Geschwindigkeiten und großen Grammaturen reicht jedoch die Wirkung dieser Führungsrollen allein nicht mehr aus.With the from the German utility model DE 93 04 281 known guide rollers can be the bouncing of the bow already quite good in many cases. At high speeds and large grammages, however, the effect of these leadership roles alone is no longer enough.

Weiterhin problematisch ist, dass bei frisch bedruckten Bogen durch Bürsten bzw. Anpresskugeln bzw. Führungsrollen Markierungen entstehen. Diese sind unerwünscht, da die Qualität der Produkte dadurch wesentlich beeinträchtigt wird.Another problem is that arise in freshly printed sheets by brushes or pressure balls or guide rollers markings. These are undesirable because the quality of the products is significantly affected.

Aufgabenstellungtask

Aufgabe der vorliegenden Erfindung ist es deshalb, eine alternative Vorrichtung zur Bogenpositionierung zu schaffen, die geringe Beruhigungszeiten des Bogens beim Auftreffen auf den Vorderanschlag insbesondere eines Schwertfalzwerkes ermöglicht und gleichzeitig Markierungen auf dem Bogen vermeidet. Durch eine solche Vorrichtung soll im Falle des Einsatzes in einer Falzmaschine eine hohe Falzleistung und die Erstellung von hochqualitativen Produkten ermöglicht werden.Object of the present invention is therefore to provide an alternative device for sheet positioning, which allows low settling times of the sheet when hitting the front stop especially a sword folder and at the same time avoids marks on the sheet. By such a device should in the case of use in a folding machine a high folding performance and the creation of high-quality products are made possible.

Diese Aufgabe wird gelöst mit einer Vorrichtung gemäß den kennzeichnenden Merkmalen von Anspruch 1.This object is achieved with a device according to the characterizing features of claim 1.

Die erfindungsgemäße Vorrichtung dient dem Positionieren von in einer Bogentransportrichtung bewegten Bogen, vorzugsweise in einer Schwert- oder einer Kombifalzmaschine. Die Vorrichtung besitzt mindestens ein sich in einer Bogentransportebene befindliches Transportband, auf welchem die Bogen gegen mindestens einen Anschlag gefördert werden können. Weiter besitzt die Vorrichtung mindestens ein Bogenpositionierelement, das in bzw. entgegen der Bogentransportrichtung bewegbar und in Abhängigkeit des Bogenformats hinter die Hinterkante des beruhigten Bogens einstellbar ist, wenn der Bogen mit seiner Vorderkante am Anschlag anliegt. Das mindestens eine Bogenpositionierelement weist in vorteilhafter Weise eine in Bogentransportrichtung ansteigende Bogenleitfläche und eine im Wesentlichen senkrecht zur Bogentransportebene ausgerichtete Bogenrückhaltefläche auf. Ein durch das Transportband bewegter Bogen wird über die ansteigende Bogenleitfläche hinweg transportiert, bis er mit seiner Vorderkante am Anschlag anstößt. Die Bogenrückhaltefläche des Bogenpositionierelements, welche in Bogentransportrichtung betrachtet sich an die ansteigende Bogenleitfläche anschließt, verhindert ein Zurückspringen des Bogens und trägt damit zu einer schnellen Bogenberuhigung bei. Ein mit seiner Vorderkante am Anschlag anliegender und beruhigter Bogen kann durch das Schwertfalzwerk der Schwert- oder Kombifalzmaschine exakt gefalzt werden. In einer besonders vorteilhaften Weiterbildung der erfindungsgemäßen Vorrichtung ist oberhalb des mindestens einen Transportbandes mindestens eine Blaseinrichtung angeordnet zur Erzeugung einer gegen das Transportband gerichteten Blasluft. Dadurch wird in vorteilhafter Weise sichergestellt, dass ein mit seiner Vorderkante am Anschlag anliegender Bogen in seiner Beruhigungsphase nahezu in der Bogentransportebene gehalten wird und die Bogenrückhaltefläche des Bogenpositionierelements zuverlässig ein Zurückspringen des Bogens verhindern kann. Die Blaseinrichtung ist dabei vorteilhafter Weise in Bogentransportrichtung betrachtet zwischen dem mindestens einen Bogenpositionierelement und dem Anschlag angeordnet.The device according to the invention serves to position sheets moved in a sheet transport direction, preferably in a sword or a combination folding machine. The device has at least one transport belt located in a sheet transport plane on which the sheets can be conveyed against at least one stop. Further, the device has at least one Bogenpositionierelement which is movable in or against the sheet transport direction and adjustable in dependence of the sheet format behind the trailing edge of the calmed arc when the sheet rests with its leading edge against the stop. The at least one sheet positioning element advantageously has a sheet guide surface which rises in the sheet transport direction and an sheet restraining surface which is oriented substantially perpendicular to the sheet transport plane. An arc moved by the conveyor belt is transported over the rising sheet guide surface until it abuts with its leading edge against the stop. The sheet retention surface of the Bogenpositionierelements, which viewed in the sheet transport direction adjoins the rising sheet guiding surface, prevents jumping back of the sheet and thus contributes to a fast bow calming. A bow resting against the stop with its front edge can be accurately folded by the sword folder of the sword or combination folding machine. In a particularly advantageous embodiment of the device according to the invention at least one blowing device is arranged above the at least one conveyor belt for generating a directed against the conveyor belt blast air. This ensures in an advantageous manner that a resting with its leading edge stop arc is maintained in its calming phase almost in the sheet transport plane and the sheet retaining surface of Bogenpositionierelements reliably prevent jumping back of the sheet. The blowing device is advantageously arranged in the sheet transport direction between the at least one Bogenpositionierelement and the stop arranged.

Alternativ zu der oberhalb der Bogentransportebene angeordneten Blaseinrichtung kann auch eine unterhalb der Bogentransportebene angeordnete Saugeinrichtung zum Einsatz kommen.As an alternative to the blowing device arranged above the sheet transport plane, it is also possible to use a suction device arranged below the sheet transport plane.

In einer vorteilhaften Weiterbildung der erfindungsgemäßen Vorrichtung ist die Blaseinrichtung getaktet ansteuerbar und wird dabei so angesteuert, dass diese immer dann eine Blasluft bereitstellt, wenn sich zwischen Blaseinrichtung und Transportband ein Bogen befindet. In einer bevorzugten Ausführungsvariante weist die Blaseinrichtung mindestens eine Blasdüse auf.In an advantageous development of the device according to the invention, the blowing device is clocked controlled and is controlled so that it always provides a blast when there is an arc between the blowing and conveyor belt. In a preferred embodiment, the blowing device has at least one blowing nozzle.

In einer vorteilhaften Weiterbildung der erfindungsgemäßen Vorrichtung weist diese einen Sensor auf zum Erfassen der Anwesenheit eines Bogens. Der Sensor kann dabei als Lichttaster ausgebildet sein. Alternativ können auch andere optische Sensoren oder Kameras zum Einsatz kommen. Vorteilhafter Weise ist der Sensor in Bogentransportrichtung betrachtet zwischen dem mindestens einen Bogenpositionierelement und dem Anschlag angeordnet. Dadurch kann durch den Sensor ein Bogen dann erfasst werden, wenn er mit seiner Bogenvorderkante am Anschlag zur Anlage gebracht wird. In einer alternativen Ausführungsform ist der Sensor vor dem Bogenpositionierelement angebracht. Die Bestimmung der Position des Bogens und die Steuerung des Zeitpunkts zum Aktivieren der Blaseinrichtung können dann durch eine Wegerfassung, z.B. mittels eines Drehimpulsgebers realisiert sein.In an advantageous development of the device according to the invention, this has a sensor for detecting the presence of a sheet. The sensor can be designed as a light scanner. Alternatively, other optical sensors or cameras can be used. Advantageously, the sensor is arranged between the at least one Bogenpositionierelement and the stop viewed in the sheet transport direction. As a result, a sheet can then be detected by the sensor when it is brought to the stop with its sheet leading edge to the plant. In an alternative embodiment, the sensor is mounted in front of the sheet positioning element. The determination of the position of the sheet and the control of the timing for activating the blowing device may then be accomplished by way detection, e.g. be realized by means of an angular encoder.

In einer besonders vorteilhaften und daher bevorzugten Ausführungsform sind die Blaseinrichtungen und der Sensor signaltechnisch mit einer Steuerung verbunden. Dadurch wird ermöglicht, dass die Blaseinrichtung basierend auf den Messwerten des Sensors angesteuert werden kann, d. h. wenn der Sensor die Anwesenheit eines Bogens detektiert, wird die Blaseinrichtung derart angesteuert, dass diese eine Blasluft bereitstellt.In a particularly advantageous and therefore preferred embodiment, the blowing devices and the sensor are signal-technically connected to a controller. This makes it possible that the blowing device can be controlled based on the measured values of the sensor, d. H. If the sensor detects the presence of a bow, the blowing device is controlled such that it provides a blown air.

In einer vorteilhaften Weiterbildung der erfindungsgemäßen Vorrichtung sind das mindestens eine Bogenpositionierelement und die Blaseinrichtung und / oder der Sensor mechanisch miteinander gekoppelt, beispielsweise dadurch, dass sie an einem gemeinsamen Träger befestigt sind, und gemeinsam in bzw. entgegen der Bogentransportrichtung verschieblich. Damit ist in vorteilhafter Weise sichergestellt, dass die Anpassung der erfindungsgemäßen Vorrichtung an das Bogenformat schnell und einfach durch wenige Handgriffe durchgeführt werden kann. In einer alternativen Ausführungsform ist das Bogenpositionierelement zur Anpassung an das Bogenformat automatisch durch einen Antrieb in bzw. entgegen der Bogentransportrichtung verschieblich. Der Antrieb, insbesondere ansteuerbarer Elektromotor, kann dabei durch die Maschinensteuerung der Falzmaschine angesteuert werden, welche über Informationen zum Bogenformat verfügt. In einer weiteren alternativen Ausführungsform ist das mindestens eine Bogenpositionierelement zusätzlich auch quer zur Bogentransportrichtung verschieblich. Damit ist eine Anpassung an das Bogenformat möglich, und das Bogenpositionierelement kann z. B. mittig zum zu positionierenden Bogen eingestellt werden.In an advantageous development of the device according to the invention, the at least one Bogenpositionierelement and the blowing device and / or the sensor mechanically coupled to each other, for example, by being attached to a common carrier, and together displaceable in or against the sheet transport direction. This ensures in an advantageous manner that the adaptation of the device according to the invention to the sheet format quickly and Can be easily done by a few simple steps. In an alternative embodiment, the Bogenpositionierelement for adaptation to the sheet format is automatically displaced by a drive in or against the sheet transport direction. The drive, in particular controllable electric motor, can be controlled by the machine control of the folding machine, which has information about the sheet format. In a further alternative embodiment, the at least one Bogenpositionierelement is additionally displaceable transversely to the sheet transport direction. This adaptation to the sheet format is possible, and the Bogenpositionierelement can z. B. be set centrally to be positioned sheet.

Die beschriebene Erfindung und die beschriebenen vorteilhaften Weiterbildungen der Erfindung stellen auch in beliebiger Kombination miteinander vorteilhafte Weiterbildungen der Erfindung dar.The described invention and the described advantageous developments of the invention are also in any combination with each other advantageous developments of the invention.

Hinsichtlich weiterer Vorteile und vorteilhafter Ausgestaltungen der Erfindung wird auf die Unteransprüche sowie die Beschreibung eines Ausführungsbeispiels unter Bezugnahme auf die beiliegenden Zeichnungen verwiesen.With regard to further advantages and advantageous embodiments of the invention, reference is made to the dependent claims and the description of an embodiment with reference to the accompanying drawings.

Ausführungsbeispielembodiment

Die Erfindung soll an Hand eines Ausführungsbeispiels noch näher erläutert werden. Es zeigen in schematischer Darstellung

  • Fig. 1 eine isometrische Darstellung der erfindungsgemäßen Vorrichtung
  • Fig. 2 a-c verschiedene Ausführungen des Bogenpositionierelements in Draufsichten
  • Fig. 3 a-e verschiedene mögliche Formgebungen des Bogenpositionierelements in Schnittdarstellungen
  • Fig. 4 eine alternative Ausführungsform der erfindungsgemäßen Vorrichtung
The invention will be explained in more detail with reference to an embodiment. It show in a schematic representation
  • Fig. 1 an isometric view of the device according to the invention
  • Fig. 2 ac various embodiments of the Bogenpositionierelements in plan views
  • Fig. 3 ae various possible shapes of Bogenpositionierelements in sectional views
  • Fig. 4 an alternative embodiment of the device according to the invention

Fig. 1 zeigt eine erfindungsgemäße Vorrichtung 10 zum Positionieren von Bogen 100. Ein Bogen 100 wird durch mindestens ein Transportband 1, welches permanent umläuft, in Bogentransportrichtung T bewegt. Zur besseren Übersichtlichkeit ist in Fig. 1 nur ein Transportband 1 dargestellt, parallel dazu und verteilt über die Maschinenbreite können weitere nicht dargestellte Transportbänder vorhanden sein. Anstelle von Bändern können auch andere Transportorgane wie beispielsweise Seile verwendet werden. Die sichere Auflage eines Bogens 100 auf dem Transportband 1 und damit ein sicherer Transport der Bogen 100 wird durch Transportrollen 3 sichergestellt. In Fig. 1 ist eine solche Rolle 3 beispielhaft dargestellt. Durch das Transportband 1 wird ein jeweiliger Bogen 100 gegen einen Anschlag 11 transportiert. Im Abstand von einer Falzbogenlänge plus 1 bis 2 mm vom Vorderkantenanschlag 11 ist ein rampenförmiges oder keilförmiges Bogenpositionierelement 12 am Bandträger 2 befestigt. Durchläuft die Falzbogenvorderkante 100.1 des Falzbogens 100 das Bogenpositionierelement 12, so wird der Bogen 100 um eine Höhendifferenz vom Transportband 1 bzw. der Bogentransportebene E (nicht dargestellt) angehoben. Dieses Anheben geschieht dabei durch die in Bogentransportrichtung ansteigende Bogenleitfläche 12.1 des Bogenpositionierelements 12. Erreicht der Bogen 100 mit seiner Bogenvorderkante 100.1 den Anschlag 11, so befindet sich die Bogenhinterkante 100.2 ca. 1 bis 2 mm in Bogentransportrichtung T gesehen stromabwärtig der Bogenrückhaltefläche 12.2 des Bogenpositionierelements 12. Ein als Lichttaster ausgeführter Sensor 14 detektiert die Anwesenheit eines Bogens 100 und meldet diese an eine Steuereinrichtung 15. Ein alternativ positionierter Sensor 14 befindet sich nicht zwischen Bogenpositionierelement 12 und Vorderkantenanschlag 11, sondern - wie in Fig. 4 dargestellt - vor dem Bogenpositionierelement 12. Die Steuereinrichtung 15 wiederum steuert eine Blaseinrichtung 13 an, welche durch eine Blasdüse 13.1 eine Blasluft B bereitstellt. Die Blaseinrichtung 13 kann beispielsweise von einem zentralen Erzeuger der Falzmaschine über einen Anschluss 13.2 versorgt werden. Die Blasluft B ist gegen den auf dem Transportband 1 aufliegenden Bogen 100 gerichtet. Der Einsatz der Blasluft B stellt sicher, dass die Bogenhinterkante 100.2 des Bogens 100 in der Bogentransportebene E (nicht dargestellt) gehalten wird und damit um den Betrag einer Höhendifferenz von Transportband 1 und der Oberkante des Bogenpositonierelements 12 unterhalb der Oberkante des Bogenpositonierelements 12 an der Bogenrückhaltefläche 12.2 anschlagen kann. Ein Zurückspringen des Bogens 100 um mehr als ein bis etwa zwei mm wird damit durch die Bogenrückhaltefläche 12.2, welche als Anschlagfläche wirkt, formschlüssig verhindert. Dadurch wird die Beruhigungszeit des Bogens 100 im Vergleich zu gängigen anderen Lösungen deutlich reduziert. Da während der Beruhigungsphase keine Bogen belastenden Elemente auf den Bogen 100 wirken, können Markierungen vermieden werden. Fig. 1 shows a device 10 according to the invention for positioning of sheets 100. A sheet 100 is moved by at least one conveyor belt 1, which rotates permanently in the sheet transport direction T. For better clarity, see Fig. 1 only one conveyor belt 1 shown, parallel to it and distributed over the machine width more conveyor belts, not shown, may be present. Instead of ribbons can Other transport organs such as ropes are used. The secure support of a sheet 100 on the conveyor belt 1 and thus a secure transport of the sheet 100 is ensured by transport rollers 3. In Fig. 1 is such a role 3 exemplified. By the conveyor belt 1, a respective sheet 100 is transported against a stop 11. At a distance of a folded sheet length plus 1 to 2 mm from the leading edge stop 11, a ramp-shaped or wedge-shaped Bogenpositionierelement 12 is attached to the tape carrier 2. If the folded sheet leading edge 100.1 of the folded sheet 100 passes through the sheet positioning element 12, the sheet 100 is lifted by a height difference from the transport belt 1 or the sheet transport plane E (not shown). When the sheet 100 reaches the stop 11 with its sheet leading edge 100.1, the sheet trailing edge 100.2 is approximately 1 to 2 mm seen in the sheet transport direction T downstream of the sheet retention surface 12.2 of the sheet positioning element 12 A sensor 14 designed as a light sensor detects the presence of a sheet 100 and reports it to a control device 15. An alternatively positioned sensor 14 is not located between the sheet positioning element 12 and the leading edge stop 11, but instead Fig. 4 shown - in front of the Bogenpositionierelement 12. The control device 15 in turn controls a blower 13, which provides a blown air B through a blowing nozzle 13.1. The blowing device 13 can be supplied, for example, from a central producer of the folding machine via a connection 13.2. The blowing air B is directed against the resting on the conveyor belt 1 sheet 100. The use of the blown air B ensures that the sheet trailing edge 100.2 of the sheet 100 is held in the sheet transport plane E (not shown) and thus by the amount of height difference of conveyor belt 1 and the top edge of the sheet positioner 12 below the top edge of the sheet positioner 12 at the sheet retention surface 12.2 can strike. A jumping back of the sheet 100 by more than one to about two mm is thus positively prevented by the sheet retaining surface 12.2, which acts as a stop surface. As a result, the settling time of the sheet 100 is significantly reduced compared to other conventional solutions. Since during the calming phase no bow loading elements act on the sheet 100, markings can be avoided.

In weniger bevorzugten Ausführungsformen können an Stelle der Blaseinrichtung 13 auch andere getaktet absenkbare Niederhalter wie beispielsweise eine Rolle, ein Kugel, eine Feder oder eine Bürste eingesetzt werden. Um die Berührung mit dem Bogen 100 kurz zu halten und um dadurch Markierungen zu vermeiden muss die Taktung sehr genau gesteuert werden. Insbesondere werden die Niederhalter nur in dem Moment abgesenkt, in dem ein Bogen 100 gegen das Bogenpositionierelement 12 zurückspringt.In less preferred embodiments, instead of the blowing device 13, other clocked lowerable hold-down devices such as a roller, a ball, a spring or a brush can be used. To keep the contact with the sheet 100 short and thereby avoid markings, the timing must be controlled very accurately. In particular, the hold-downs are lowered only in the moment in which a sheet 100 springs back against the Bogenpositionierelement 12.

In den Figuren 2a -c sind verschiedene Ausführungsvarianten des Bogenpositionierelements 12 dargestellt. Gemäß Fig. 2a erstreckt sich das Bogenpositionierelement 12 in etwa über die Breite eines Bogens 100. Gemäß Fig. 2b sind mehrere parallel zueinander angeordnete und über die Breite des Bogens 100 verteilte Bogenpositionierelemente 12 vorgesehen. Gemäß Fig. 2c kommt ein Bogenpositionierelement 12 zum Einsatz, welches quer zur Bogentransportrichtung T in Richtung a verstellbar ist.In the FIGS. 2a-c Different variants of the Bogenpositionierelements 12 are shown. According to Fig. 2a The sheet positioning element 12 extends approximately over the width of a sheet 100. According to Fig. 2b are provided a plurality of mutually parallel and distributed over the width of the sheet 100 Bogenpositionierelemente 12. According to Fig. 2c a Bogenpositionierelement 12 is used, which is transverse to the sheet transport direction T in the direction a adjustable.

Die Figuren 3a-e zeigen verschiedene Ausführungsvarianten des rampenförmigen Bogenpositionierelements 12. Gemäß Fig. 3a ist das Bogenpositionierelement 12 als Keil ausgeformt, mit einer Bogenleitfläche 12.1 und einer Bogenrückhaltefläche 12.2, welche jeweils eben ausgeführt sind und in einem spitzen Winkel aufeinander treffen. Das Bogenpositionierelement 12 gemäß Fig. 3b weist ebenfalls eine ebene Bogenleitfläche 12.1 auf, die Bogenrückhaltefläche 12.2 weist hingegen eine nach innen gewölbte Bogenrückhaltefläche 12.2 auf. Der umgekehrte Fall mit einer gewölbten Bogenleitfläche 12.1 und einer ebenen Bogenrückhaltefläche 12.2 ist in Fig. 3c dargestellt. Gemäß einer nicht dargestellten Ausführungsvariante können auch beide Flächen 12.1 und 12.2 gewölbt ausgeführt sein. In einer alternativen und in Fig. 3d dargestellten Ausführungsform ist das Bogenpositionierelement 12 aus einem plattenförmigen Material, wie beispielsweise einem Metallblech gebogen. Weitere alternative und äquivalente Ausführungsformen des Bogenpositionierelements 12 ergeben sich für den Fachmann aus den dargestellten Beispielen. Allen verschiedenen Ausführungsformen des Bogenpositionierelements 12 ist jedoch gemeinsam, dass die in Bogentransportrichtung stromaufwärts liegende Kante der Bogenleitfläche 12.1 unterhalb und die in Bogentransportrichtung stromabwärts liegende Kante der Bogenleitfläche 12.1 oberhalb der Bogentransportebene E liegt. Die Bogenrückhaltefläche 12.2 ist in allen Ausführungsformen des Bogenpositionierelements 12 derart ausgeführt, dass sie an die Bogenleitfläche 12.1 angrenzt und sich bis unter die Bogentransportebene E erstreckt. Die Ausführungsform gemäß Fig. 3e ist ähnlich der von Fig. 3a) ausgeführt. Zwischen der ansteigenden Bogenleitfläche 12.1 und der senkrechten Bogenrückhaltefläche 12.2 befindet sich jedoch noch eine horizontale Zwischenfläche.The FIGS. 3a-e show various embodiments of the ramp-shaped Bogenpositionierelements 12. According to Fig. 3a the Bogenpositionierelement 12 is formed as a wedge, with a Bogenleitfläche 12.1 and a sheet retaining surface 12.2, which are each made flat and meet at an acute angle to each other. The Bogenpositionierelement 12 according to Fig. 3b also has a flat sheet guide surface 12.1, the sheet retaining surface 12.2, however, has an inwardly curved sheet retention surface 12.2. The reverse case with a curved Bogenleitfläche 12.1 and a flat sheet retaining surface 12.2 is in Fig. 3c shown. According to an embodiment variant, not shown, both surfaces 12.1 and 12.2 may be curved. In an alternative and in Fig. 3d In the illustrated embodiment, the sheet positioning member 12 is bent from a plate-shaped material such as a metal sheet. Further alternative and equivalent embodiments of the Bogenpositionierelements 12 will be apparent to those skilled in the illustrated examples. However, all the different embodiments of the Bogenpositionierelements 12 is common that the upstream in the sheet transport direction edge of Sheet guide surface 12.1 below and in the sheet transport direction downstream edge of the sheet guide surface 12.1 above the sheet transport plane E is located. In all embodiments of the sheet positioning element 12, the sheet retaining surface 12. 2 is designed in such a way that it adjoins the sheet guiding surface 12. 1 and extends below the sheet transport plane E. The embodiment according to Fig. 3e is similar to that of Fig. 3a ). Between the rising sheet guiding surface 12.1 and the vertical sheet retaining surface 12.2, however, there is still a horizontal intermediate surface.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Transportbandconveyor belt
22
Bandträgertape carrier
33
Transportrolletransport roller
1010
Vorrichtung zum PositionierenDevice for positioning
1111
VorderkantenanschlagLeading-edge stop
1212
BogenpositionierelementBogenpositionierelement
12.112.1
Bogenleitflächesheet guide surface
12.212.2
BogenrückhalteflächeArch retaining surface
1313
Blaseinrichtungblower
13.113.1
Blasdüseblow nozzle
13.213.2
Luftanschlussair connection
1414
Sensor (Lichttaster)Sensor (light scanner)
1515
Steuereinrichtungcontrol device
100100
Bogenbow
100.1100.1
BogenvorderkanteSheet leading edge
100.2100.2
BogenhinterkanteSheet trailing edge
BB
Blasluftblowing air
Ee
BogentransportebeneSheet transport plane
TT
BogentransportrichtungSheet transport direction
aa
Verstellrichtung BogenpositionierelementAdjustment direction Bogenpositionierelement

Claims (12)

Vorrichtung zum Positionieren (10) von vorzugsweise in einer Schwert- oder Kombifalzmaschine in einer Bogentransportrichtung (T) bewegten Bogen (100), aufweisend mindestens ein sich in einer Bogentransportebene (E) befindliches Transportband (1), auf welchem der Bogen (100) gegen mindestens einen Anschlag (11) gefördert wird,
dadurch gekennzeichnet,
dass die Vorrichtung zum Positionieren (10) mindestens ein Bogenpositionierelement (12) aufweist, das in bzw. entgegen der Bogentransportrichtung (T) bewegbar und formatabhängig hinter die Hinterkante (100.2) des beruhigten Bogens (100) einstellbar ist, wenn der Bogen (100) mit seiner Vorderkante (100.1) am Anschlag (11) anliegt, wobei das mindestens eine Bogenpositionierelement (12) rampenförmig oder keilförmig ausgebildet ist und eine in Bogentransportrichtung (T) ansteigende Bogenleitfläche (12.1) und eine im wesentlichen senkrecht zur Bogentransportebene (E) ausgerichtete Bogenrückhaltefläche (12.2) aufweist.Device for positioning (10) sheets preferably moving in a sword or combination folding machine in a sheet transport direction (T), comprising at least one transport belt (1) located in a sheet transport plane (E) on which the sheet (100) abuts at least one stop (11) is conveyed,
characterized,
in that the device for positioning (10) has at least one sheet positioning element (12) which is movable and format-dependent in or opposite to the sheet transport direction (T) behind the trailing edge (100.2) of the settled sheet (100), when the sheet (100) with its front edge (100.1) rests against the stop (11), wherein the at least one Bogenpositionierelement (12) is ramp-shaped or wedge-shaped and in a sheet transport direction (T) rising Bogenleitfläche (12.1) and a substantially perpendicular to the sheet transport plane (E) aligned sheet retention surface (12.2). Vorrichtung nach Anspruch 1,
dadurch gekennzeichnet,
dass oberhalb des mindestens einen Transportbandes (1) mindestens eine Blaseinrichtung (13) angeordnet ist zur Erzeugung einer gegen das Transportband (1) gerichteten Blasluft (B).Device according to claim 1,
characterized,
in that at least one blowing device (13) is arranged above the at least one conveyor belt (1) for producing a blowing air (B) directed against the conveyor belt (1). Vorrichtung nach Anspruch 2,
dadurch gekennzeichnet,
dass die Blaseinrichtung (13) getaktet angesteuert wird.Device according to claim 2,
characterized,
that the blowing device (13) is actuated in a clocked manner. Vorrichtung nach Anspruch 2 oder 3,
dadurch gekennzeichnet,
dass die Blaseinrichtung (13) mindestens eine Blasdüse (13.1) aufweist.Device according to claim 2 or 3,
characterized,
that the blowing device (13) comprises at least one blower nozzle (13.1). Vorrichtung nach einem der vorangehenden Ansprüche,
dadurch gekennzeichnet,
dass die Vorrichtung (10) einen Sensor (14) aufweist zum Erfassen der Anwesenheit eines Bogens (100).Device according to one of the preceding claims,
characterized,
in that the device (10) has a sensor (14) for detecting the presence of a sheet (100). Vorrichtung nach Anspruch 5,
dadurch gekennzeichnet,
dass der Sensor (14) als Lichttaster ausgebildet ist.Device according to claim 5,
characterized,
that the sensor (14) is designed as a light scanner. Vorrichtung nach Anspruch 5 oder 6,
dadurch gekennzeichnet,
dass der Sensor (14) in Bogentransportrichtung (T) betrachtet zwischen dem mindestens einen Bogenpositionierelement (12) und dem Anschlag (11) angeordnet ist.Apparatus according to claim 5 or 6,
characterized,
is arranged that the sensor (14) in the sheet transport direction (T) considered between the at least one Bogenpositionierelement (12) and the stop (11). Vorrichtung nach Anspruch 5 oder 6,
dadurch gekennzeichnet,
dass der Sensor (14) in Bogentransportrichtung (T) betrachtet stromaufwärtig des mindestens einen Bogenpositionierelement (12) angeordnet ist.Apparatus according to claim 5 or 6,
characterized,
in that the sensor (14) is arranged upstream of the at least one sheet positioning element (12) in the sheet transport direction (T). Vorrichtung nach Anspruch 3 und 5,
dadurch gekennzeichnet,
dass die Blaseinrichtung (13) und der Sensor (14) signaltechnisch mit einer Steuereinrichtung (15) verbunden sind, zur Ansteuerung der Blaseinrichtung (13) basierend auf den Messwerten des Sensors (14).Device according to claims 3 and 5,
characterized,
in that the blowing device (13) and the sensor (14) are signal-wise connected to a control device (15) for controlling the blowing device (13) based on the measured values of the sensor (14). Vorrichtung nach Anspruch 2 und 5,
dadurch gekennzeichnet,
dass das mindestens eine Bogenpositionierelement (12) und die Blaseinrichtung (13) und / oder der Sensor (14) mechanisch gekoppelt sind und gemeinsam in bzw. entgegen der Bogentransportrichtung (T) verschieblich sind.Device according to claims 2 and 5,
characterized,
the at least one Bogenpositionierelement (12) and the blower (13) and / or the sensor (14) are mechanically coupled together and in or counter to the sheet transport direction (T) are displaceable. Vorrichtung nach einem der vorangehenden Ansprüche,
dadurch gekennzeichnet,
dass das mindestens eine Bogenpositionierelement (12) quer zur Bogentransportrichtung (T) verschieblich angeordnet ist.Device according to one of the preceding claims,
characterized,
in that the at least one sheet positioning element (12) is arranged to be displaceable transversely to the sheet transport direction (T). Vorrichtung nach einem der vorangehenden Ansprüche,
dadurch gekennzeichnet,
dass das mindestens eine Bogenpositionierelement (12) automatisch durch einen Antrieb in bzw. entgegen der Bogentransportrichtung (T) verschieblich ist, zur Anpassung an das Bogenformat des Bogens (100).Device according to one of the preceding claims,
characterized,
the at least one Bogenpositionierelement (12) automatically by a drive in or counter to the sheet transport direction (T) displaceable for adaptation to the sheet size of the sheet (100).
EP10159978.5A 2009-05-07 2010-04-15 Device for positioning sheets in a folding machine Active EP2248748B1 (en)

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BR102015024454A2 (en) * 2014-10-01 2016-05-24 Müller Martini Holding AG transverse puller brake for printing sheet
JP7146255B2 (en) * 2018-10-29 2022-10-04 ホリゾン・インターナショナル株式会社 knife folding machine

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CN101879996B (en) 2015-05-20

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