EP2960193B1 - Pocket folding machine with integrated press - Google Patents

Pocket folding machine with integrated press Download PDF

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Publication number
EP2960193B1
EP2960193B1 EP15166889.4A EP15166889A EP2960193B1 EP 2960193 B1 EP2960193 B1 EP 2960193B1 EP 15166889 A EP15166889 A EP 15166889A EP 2960193 B1 EP2960193 B1 EP 2960193B1
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EP
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Prior art keywords
folding
pressing
rollers
unit
press
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EP15166889.4A
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German (de)
French (fr)
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EP2960193A1 (en
Inventor
Markus Belmann
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Heidelberger Druckmaschinen AG
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Heidelberger Druckmaschinen AG
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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
    • 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
    • B65H45/142—Pocket-type 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
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/50—Auxiliary process performed during handling process
    • B65H2301/51—Modifying a characteristic of handled material
    • B65H2301/512—Changing form of handled material
    • B65H2301/5123—Compressing, i.e. diminishing thickness
    • B65H2301/51232—Compressing, i.e. diminishing thickness for flattening

Definitions

  • the invention relates to a pocket folding machine according to the preamble of claim 1.
  • Pocket folding machines and Schwertfalzmaschinen are known from the prior art.
  • the combination of pocket folding machines with Schwertfalzmaschinen is common as Kombifalzmaschine.
  • parallel folds are folded in pocket folders and cross breaks in the subsequent knife folders.
  • the sheet passes through at least the following stations in the feed-through direction of the combination folding machine: feeder, transfer table, pocket folder, knife folder, delivery arm.
  • a respective pocket folder consists of a folding pocket and three folding rollers, which are arranged in two pairs of folding rollers.
  • From the DE 29 40 360 A1 is a single sword folding machine for folding of printed and pre-folded sheet known.
  • Combination folding machines combine pocket folders and knife folders. Here are folded in a first folding station in Taschenfalztechniken parallel breaks and in a subsequent folding station in Schwertfalztechniken cross breaks.
  • the DE 31 47 064 A1 and the DE 10 2006 055 301 A1 show Kombifalzmaschinen with a plurality of Taschenfalzwerken and nachranging arranged Schwertfalzwerken.
  • the EP 1 970 132 B1 shows a pressing station with a device for cleaning rollers, which may be downstream of a folding station. Using conveyor belts, folded signatures are transferred from a folding station to the pressing station. Similar press stations are also in the DE 103 48 900 A1 , of the EP 1 927 566 A1 and the DE 696 18 066 T2 described.
  • the pressing force is often applied by means acting on the press rollers spring assemblies. If now the distance of the press rolls to be adapted to adapt to products of other thickness, at least one of the press rolls must be adjusted against the force of the spring packs. This requires high forces.
  • Object of the present invention is to provide a pocket folding machine, which allows the generation of a variety of signatures in high quality. So both very small and compact signatures as well as very thick signatures should be reliable can be processed. Another task is to improve the pressure of the signatures regardless of the nature of the signature.
  • the pocket folding machine which serves for the folding of sheets, in particular of paper, cardboard, cardboard or plastic for signatures, has at least one pocket folding station with at least one folding unit and with at least one pressing unit for pressing off the signatures.
  • the at least one folding unit has at least one folding pocket and, associated with a respective folding pocket, a pair of folding rollers.
  • At least one of the pressing plants is arranged downstream of the at least one folding unit.
  • the pressing plant is arranged directly downstream of a last pair of folding rollers, viewed in the direction of transport of the sheets. That is, between the last pair of folding rollers and the press shop, there are no other means of transport.
  • the folding rollers of the at least one folding unit and the press rollers of the press shop are mounted in a common Falzwalzenstuhl, wherein the Falzwalzenstuhl has two mutually parallel side walls as bearing plates.
  • a pocket folding machine has the advantages that short and multiple folded products can be pressed immediately before they are transported in the machine. This prevents the products from opening during further transport. Because the products remain closed after being pressed off, they can subsequently be transported further at a lower speed without affecting the folding quality.
  • the pressing plant has at least one pneumatic cylinder for acting on the press rolls with a pressing force.
  • an adjusting device is assigned to adjust the distance between the two press rollers. It is considered to be particularly advantageous if this adjusting device has a controllable electromotive drive has.
  • the adjusting device acts in particular on at least one bearing of one of the press rolls and thus effects a distance adjustment between the two press rolls.
  • the controllable electromotive drive can be connected to a machine control of the pocket folding machine, so that the press roller distance can be easily adjusted and already derived from the order data.
  • the folding rollers and the press rollers are driven in rotation by a common drive, in particular a controllable electric motor.
  • the press shop is designed as a belt press with two, a press nip forming press rolls and two, a respective press roll encircling circulating conveyor belts.
  • an auxiliary roller is arranged upstream and downstream, as viewed in the transport direction, of a respective press roller.
  • a respective press roll and the two associated auxiliary rolls are in each case wrapped around by a circulating conveyor belt.
  • the vertical distance between the two auxiliary rollers arranged upstream is greater than the vertical distance between the two press rollers. This results in a taper of the conveying gap between the circulating conveyor belts. This causes the products in the press shop to undergo pre-pressing before the actual pressing operation takes place between the press roller pair.
  • the pressing force of the pre-pressing increases from the inlet area at the auxiliary rollers to the press roller pair so that air can be squeezed out between the folded sides of a respective product.
  • the press shop seen in the transport direction - at least one pair of knife shafts for processing the folded and pressed-off signatures and / or another folding station, namely a Taschenfalzstation or a Schwertfalzstation, downstream.
  • FIG. 1 shows a pocket folding machine 100 according to the prior art.
  • a sheet 1000 passes from a feeder 1 coming a Taschenfalzstation 3, is folded and then passes through a spatially spaced pressing station 5, in which the folded sheet 1000, ie the signature 1001, is pressed, and subsequently further folding stations before the signature 1001 in a boom 2 is designed.
  • the Taschenfalzstation 3 has a plurality of folding units, wherein a respective folding unit has at least one folding pocket 3.1 and a pair of folding rollers 3.2. Preceded by the first folding unit - viewed in the transporting direction T - there can be a pair of knife shafts 4.
  • a respective sheet 1000 is prepared for the subsequent folding process, for example by creasing, cutting and / or perforating.
  • a pair of knife shaft 4.2 may be downstream, in which the folded sheet 1000 is reworked, for example, by receiving a separating cut or trimming.
  • the folded sheet 1000 is subsequently transferred to conveyor belts or transport tables, which transport the folded sheet 1000 to a press roller pair where the folded sheet 1000 undergoes a pressing.
  • the conveyor belts or transport tables of the folded sheet 1000 must be transported as quickly as possible to the press rollers of the pressing station 5 in order to avoid opening the sides of the folded sheet 1000.
  • FIG. 2 a pocket folding machine 100 according to the invention is shown. Like the pocket folding machine 100 according to the prior art, this has a Taschenfalzstation 3 with a plurality of folding units, wherein a respective folding unit has at least one folding pocket 3.1 and associated with a pair of folding rollers 3.2. In contrast to the machine according to the prior art, no pressing station 5 is provided. Instead, a belt press 10 was integrated as a press shop in the Taschenfalzstation 3. The belt press 10 joins - seen in the transport direction T - directly to the last pair of folding rollers 3.2. That is, between the last folding rollers 3.2 and the belt press 10 no further means of transport are provided. Preceded by the folding units, a pair of knife shafts 4. 1 can be arranged. Downstream of the belt press 10 can also be provided a pair of knife shafts 4.2.
  • Both the folding rollers 3.2 and the rollers 11, 13, 14, 16 of the belt press 10 and possibly also the upstream cutter shaft pair 4.1 and the downstream cutter shaft pair 4.2 are mounted together in the folding roller 19.
  • the press rollers 11, 14 and thus also the conveyor belts 12, 15 and the folding rollers 3.2 and optionally also the cutter shafts 4.1 and 4.2 can be driven by a common drive (not shown) rotatably.
  • Upstream and downstream of the upper press roll 11, upper auxiliary rolls 13 are arranged. Both the upper pressure roller 11 and the upper auxiliary rollers 13 are wrapped by at least one upper conveyor belt 12. Upstream and downstream of the lower press roller 14, lower auxiliary rollers 16 are arranged. Both the lower press roll 14 and the lower auxiliary rolls 16 are wrapped together by at least one lower conveyor belt 15.
  • the conveyor belts 12, 15 are circulating conveyor belts, which transport a respective folded sheet 1001 during the pressing. The distance m between the two upstream auxiliary rolls 13 and 16 is greater than the distance n between the two press rolls 11 and 14.
  • a tapered transport gap is formed by the conveyor belts 12 and 15, which causes air from a folded sheet 1001 can be pressed out before it reaches the press roller pair 11, 14 and there experiences its actual pressing. Even very compact products can be transported and pressed.
  • One of the two press rolls 11, 14 is made adjustable.
  • the downstream auxiliary rollers 13 and 16 can be moved further in the transport direction, so that the conveyor belts 12, 15 allow the further transport of short signatures 1001 to a subsequent processing station (not shown) without the Open signatures 1001.
  • the lower press roller 14 perform a feed movement Z.
  • the lower pressure roller 14 is connected to a pneumatic cylinder 17, which can build up the pressing force F.
  • the belt press 10 further has an adjusting device 18 with a motor-adjustable stop, which can undergo an adjustment a. If a change in the distance between the two press rolls 11, 14 take place, the pressing force F generated by the pneumatic cylinder 17 is reduced and the adjustable stop of the setting device 18 is displaced. Since the adjustment does not take place against the high pressing force F, a controllable electric motor drive of small power is sufficient for actuating the adjusting device 18. As in FIG.
  • the pneumatic cylinder 17 has been deactivated, ie the pressing force F degraded, and adjusts the stop of the adjuster 18. After adjustment a of the stop of the adjustment 18 of the pneumatic cylinder 17 is activated again and the pressing force F built.
  • the pneumatic cylinder 17 and the adjusting device 18 can be controlled by a common machine control (not shown).
  • FIG. 4a a pocket folding machine 100 according to the invention is shown. Like the pocket folding machine 100 according to the prior art, this has a Taschenfalzstation 3 with a plurality of folding units, wherein a respective folding unit has at least one folding pocket 3.1 and associated with a pair of folding rollers 3.2.
  • a roller press 10 integrated as a press shop in the Taschenfalzstation 3.
  • the roller press 10 follows - as seen in the transport direction T - directly to the last pair of folding rollers 3.2. That is, between the last folding rollers 3.2 and the roller press 10 no further means of transport are provided.
  • a pair of knife shafts 4. 1 can be arranged. Downstream of the roll press 10 may also be provided a pair of knife shafts 4.2.
  • Both the folding rollers 3.2 and the rollers 11, 14 of the roller press 10 and possibly also the upstream cutter shaft pair 4.1 and the downstream cutter shaft pair 4.2 are stored together in the folding roller 19.
  • the press rollers 11, 14 and the folding rollers 3.2 and optionally also the cutter shafts 4.1 and 4.2 can be driven in rotation by a common drive (not shown).
  • Fig. 4b an alternative embodiment of a pocket folding station 3 is shown.
  • the upstream cutter shafts 4.1 is also a pressing station 10.
  • Such a design is considered advantageous if it is at the Taschenfalzstation 3 is a second Taschenfalzstation, ie if between the feeder 1 and 3 Taschenfalzstation yet another Taschenfalzstation 3 is arranged.
  • the already folded in the first folding station 3 signatures 1001 can be pressed before re-folding, whereby a higher folding accuracy is achieved.
  • the signatures 1001 by 90 ° redirecting transport table is used (not shown), in an embodiment of the first Taschenfalzstation 3 according to Fig.
  • the upstream pressing station 10 may also be provided in addition to a pair of knife shafts 4.1.
  • the adjustment of the press roll distance is carried out the same as in the FIGS. 3a and 3b shown embodiment.
  • Fig. 4c is a not belonging to the invention Taschenfalzmaschine 100 shown with a Taschenfalzstation 3, which has only an upstream pressing station

Landscapes

  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)

Description

Die Erfindung betrifft eine Taschenfalzmaschine gemäß dem Oberbegriff von Anspruch 1.The invention relates to a pocket folding machine according to the preamble of claim 1.

Stand der TechnikState of the art

Aus dem Stand der Technik sind Taschenfalzmaschinen und Schwertfalzmaschinen bekannt. Die Kombination von Taschenfalzmaschinen mit Schwertfalzmaschinen ist als Kombifalzmaschine geläufig. Dabei werden in Taschenfalzwerken Parallelbrüche und in den nachfolgenden Schwertfalzwerken Kreuzbrüche gefalzt. Der Bogen durchläuft dabei in Durchlaufrichtung der Kombifalzmaschine mindestens folgende Stationen: Anleger, Übergabetisch, Taschenfalzwerk, Schwertfalzwerk, Ausleger.Pocket folding machines and Schwertfalzmaschinen are known from the prior art. The combination of pocket folding machines with Schwertfalzmaschinen is common as Kombifalzmaschine. In this process, parallel folds are folded in pocket folders and cross breaks in the subsequent knife folders. The sheet passes through at least the following stations in the feed-through direction of the combination folding machine: feeder, transfer table, pocket folder, knife folder, delivery arm.

Der Aufbau einer Taschenfalzmaschine mit einer Vielzahl von Taschenfalzwerken geht aus der DE 10 2004 041 471 A1 hervor. Ein jeweiliges Taschenfalzwerk besteht dabei aus einer Falztasche und drei Falzwalzen, welche in zwei Falzwalzenpaaren angeordnet sind. Aus der DE 29 40 360 A1 ist ein Einzelschwertfalzwerk zum Falzen von bedruckten und vorgefalzten Bogen bekannt. In Kombifalzmaschinen werden Taschenfalzwerke und Schwertfalzwerke kombiniert. Dabei werden in einer ersten Falzstation in Taschenfalzwerken Parallelbrüche und in einer nachfolgenden Falzstation in Schwertfalzwerken Kreuzbrüche gefalzt. Die DE 31 47 064 A1 und die DE 10 2006 055 301 A1 zeigen Kombifalzmaschinen mit einer Mehrzahl von Taschenfalzwerken und nachranging angeordneten Schwertfalzwerken.The construction of a Taschenfalzmaschine with a variety of Taschenfalzwerken goes out of the DE 10 2004 041 471 A1 out. A respective pocket folder consists of a folding pocket and three folding rollers, which are arranged in two pairs of folding rollers. From the DE 29 40 360 A1 is a single sword folding machine for folding of printed and pre-folded sheet known. Combination folding machines combine pocket folders and knife folders. Here are folded in a first folding station in Taschenfalzwerken parallel breaks and in a subsequent folding station in Schwertfalzwerken cross breaks. The DE 31 47 064 A1 and the DE 10 2006 055 301 A1 show Kombifalzmaschinen with a plurality of Taschenfalzwerken and nachranging arranged Schwertfalzwerken.

Auch bekannt sind Vorrichtungen zum Pressen und Transportieren von Bogen aus Papier, Pappe und dergleichen, wie z. B. Prospekte, Zeitschriften, Flyer, welche dazu dienen, die Produkte so zu pressen, dass diese für den Weitertransport mit einer hohen Packungsdichte aufeinander gestapelt werden können, da durch das Pressen kompakte und gleichmäßige Stapel möglich sind.Also known are devices for pressing and transporting sheets of paper, cardboard and the like, such as. As brochures, magazines, flyers, which serve to press the products so that they can be stacked on each other for further transport with a high packing density, as compact and uniform stacks are possible by pressing.

Insbesondere bei gefalzten Druckweiterverarbeitungsprodukten, sogenannten Signaturen, wird zwischen den Seiten Luft eingeschlossen. Diese Luft wird durch das Pressen der Produkte herausgepresst. Weiter werden durch das Pressen bereits gebrochene, aber noch nicht vollständig gefalzte Falzkanten sauber gefalzt, was insbesondere bei dicken und steifen Materialien die Qualität der Falzkante erhöht.
Die EP 1 970 132 B1 zeigt eine Pressstation mit einer Vorrichtung zur Reinigung von Walzen, welche einer Falzstation nachgelagert sein kann. Über Transportbänder werden gefalzte Signaturen von einer Falzstation an die Pressstation übergeben.
Ähnliche Pressstationen werden auch in der DE 103 48 900 A1 , der EP 1 927 566 A1 und der DE 696 18 066 T2 beschrieben.
Nachteilig an derartigen Pressstationen ist, dass sich die Produkte nach dem Falzen und während dem Weitertransport zu nachgelagerten Messerwellen, einer nachgelagerten Pressstation und dann zu einer Produktauslage bereits wieder öffnen können. Dies kann zu Materialstau und in Konsequenz zu einem Maschinenstopp führen. Die Gefahr hierfür ist besonders gegeben bei vielfach gefalzten, kleinen Produkten, wie beispielsweise Beipackzetteln oder sogenannten Outserts.
Die US 3,416,785 A offenbart eine Falzstation mit integriertem Pressrollenpaar zum Abpressen der Signaturen direkt nach dem Falzen. Eine ähnliche Falzstation wird auch in der US 2007/0207910 A1 beschrieben.Especially with folded print finishing products, so-called signatures, air is trapped between the pages. This air is squeezed out by pressing the products. Further, by pressing already broken, but not yet fully folded folded edges are neatly folded, which increases the quality of the folded edge, especially for thick and stiff materials.
The EP 1 970 132 B1 shows a pressing station with a device for cleaning rollers, which may be downstream of a folding station. Using conveyor belts, folded signatures are transferred from a folding station to the pressing station.
Similar press stations are also in the DE 103 48 900 A1 , of the EP 1 927 566 A1 and the DE 696 18 066 T2 described.
A disadvantage of such pressing stations that the products can open again after folding and during further transport to downstream knife shafts, a downstream pressing station and then to a product display. This can lead to material jams and consequently to a machine stop. The danger for this is particularly given in many folded, small products, such as leaflets or so-called outserts.
The US 3,416,785 A discloses a folding station with integrated press roller pair for pressing the signatures directly after folding. A similar folding station is also in the US 2007/0207910 A1 described.

Bei Pressstationen nach dem Stand der Technik wird die Presskraft häufig mittels auf die Presswalzen wirkenden Federpaketen aufgebracht. Soll nun der Abstand der Presswalzen zur Anpassung an Produkte anderer Dicke angepasst werden, so muss zumindest eine der Presswalzen gegen die Kraft der Federpakete verstellt werden. Dazu sind hohe Kräfte erforderlich.In pressing stations according to the prior art, the pressing force is often applied by means acting on the press rollers spring assemblies. If now the distance of the press rolls to be adapted to adapt to products of other thickness, at least one of the press rolls must be adjusted against the force of the spring packs. This requires high forces.

Aufgabenstellungtask

Aufgabe der vorliegenden Erfindung ist es, eine Taschenfalzmaschine zu schaffen, welche die Erzeugung von unterschiedlichsten Signaturen in hoher Qualität ermöglicht. So sollen sowohl sehr kleine und kompakte Signaturen als auch sehr dicke Signaturen zuverlässig verarbeitet werden können. Weitere Aufgabe dabei ist es, die Pressung der Signaturen unabhängig von der Beschaffenheit der Signatur zu verbessern.Object of the present invention is to provide a pocket folding machine, which allows the generation of a variety of signatures in high quality. So both very small and compact signatures as well as very thick signatures should be reliable can be processed. Another task is to improve the pressure of the signatures regardless of the nature of the signature.

Gelöst wird diese Aufgabe durch eine Taschenfalzmaschine mit den Merkmalen von Anspruch 1.This problem is solved by a pocket folding machine having the features of claim 1.

Die erfindungsgemäße Taschenfalzmaschine, welche dem Falzen von Bogen, insbesondere aus Papier, Karton, Pappe oder Kunststoff für Signaturen dient, besitzt mindestens eine Taschenfalzstation mit mindestens einem Falzwerk und mit mindestens einem Presswerk zum Abpressen der Signaturen. Das mindestens eine Falzwerk weist mindestens eine Falztasche und, einer jeweiligen Falztasche zugeordnet, ein Paar Falzwalzen auf. Zumindest eines der Presswerke ist dem mindestens einen Falzwerk nachgeordnet. Erfindungsgemäß ist das Presswerk einem - in Transportrichtung der Bogen gesehen - letzten Paar von Falzwalzen unmittelbar nachgeordnet. Das heißt, zwischen dem letzten Falzwalzenpaar und dem Presswerk gibt es keine weiteren Transportmittel. Dabei sind die Falzwalzen des mindestens einen Falzwerks und die Presswalzen des Presswerks in einem gemeinsamen Falzwalzenstuhl gelagert, wobei der Falzwalzenstuhl zwei parallel zueinander angeordnete Seitenwände als Lagerplatten besitzt. Eine derartige Taschenfalzmaschine hat die Vorteile, dass kurze und vielfach gefalzte Produkte sofort abgepresst werden können, bevor sie in der Maschine weitertransportiert werden. Dadurch wird verhindert, dass sich die Produkte während des Weitertransportes öffnen. Weil die Produkte nach dem Abpressen geschlossen bleiben, können diese nachfolgend auch mit geringerer Geschwindigkeit weitertransportiert werden, ohne dass die Falzqualität beeinträchtigt wird.The pocket folding machine according to the invention, which serves for the folding of sheets, in particular of paper, cardboard, cardboard or plastic for signatures, has at least one pocket folding station with at least one folding unit and with at least one pressing unit for pressing off the signatures. The at least one folding unit has at least one folding pocket and, associated with a respective folding pocket, a pair of folding rollers. At least one of the pressing plants is arranged downstream of the at least one folding unit. According to the invention, the pressing plant is arranged directly downstream of a last pair of folding rollers, viewed in the direction of transport of the sheets. That is, between the last pair of folding rollers and the press shop, there are no other means of transport. The folding rollers of the at least one folding unit and the press rollers of the press shop are mounted in a common Falzwalzenstuhl, wherein the Falzwalzenstuhl has two mutually parallel side walls as bearing plates. Such a pocket folding machine has the advantages that short and multiple folded products can be pressed immediately before they are transported in the machine. This prevents the products from opening during further transport. Because the products remain closed after being pressed off, they can subsequently be transported further at a lower speed without affecting the folding quality.

In erfindungsgemäßer Ausgestaltung der Taschenfalzmaschine besitzt das Presswerk mindestens einen pneumatischen Zylinder zum Beaufschlagen der Presswalzen mit einer Presskraft.In the inventive embodiment of the pocket folding machine, the pressing plant has at least one pneumatic cylinder for acting on the press rolls with a pressing force.

In der Taschenfalzmaschine ist den Presswalzen des Presswerks eine Verstelleinrichtung zugeordnet zur Anpassung des Abstandes der beiden Presswalzen. Als besonders vorteilhaft wird es angesehen, wenn diese Verstelleinrichtung über einen steuerbaren elektromotorischen Antrieb verfügt. Die Verstelleinrichtung wirkt insbesondere auf zumindest ein Lager einer der Presswalzen ein und bewirkt so eine Abstandseinstellung zwischen beiden Presswalzen. Der steuerbare elektromotorische Antrieb kann mit einer Maschinensteuerung der Taschenfalzmaschine verbunden sein, so dass der Presswalzenabstand einfach eingestellt und bereits aus den Auftragsdaten abgeleitet werden kann.In the Taschenfalzmaschine the press rollers of the press shop an adjusting device is assigned to adjust the distance between the two press rollers. It is considered to be particularly advantageous if this adjusting device has a controllable electromotive drive has. The adjusting device acts in particular on at least one bearing of one of the press rolls and thus effects a distance adjustment between the two press rolls. The controllable electromotive drive can be connected to a machine control of the pocket folding machine, so that the press roller distance can be easily adjusted and already derived from the order data.

In vorteilhafter Weiterbildung der erfindungsgemäßen Taschenfalzmaschine werden die Falzwalzen und die Presswalzen von einem gemeinsamen Antrieb, insbesondere einem steuerbaren Elektromotor, rotativ angetrieben.In an advantageous development of the pocket folding machine according to the invention, the folding rollers and the press rollers are driven in rotation by a common drive, in particular a controllable electric motor.

In einer Ausführungsvariante ist das Presswerk als Bandpresse ausgeführt mit zwei, einen Pressspalt bildenden Presswalzen und zwei, eine jeweilige Presswalze umschlingenden umlaufenden Transportbändern.
In Weiterbildung der Taschenfalzmaschine ist stromaufwärtig und stromabwärtig - in Transportrichtung gesehen - einer jeweiligen Presswalze je eine Hilfswalze angeordnet. Eine jeweilige Presswalze und die beiden zugeordneten Hilfswalzen werden dabei jeweils von einem umlaufenden Transportband umschlungen. Als besonders vorteilhaft wird es angesehen, dass der vertikale Abstand zwischen den beiden stromaufwärtig angeordneten Hilfswalzen größer ist als der vertikale Abstand zwischen den beiden Presswalzen. Dadurch ergibt sich eine Verjüngung des Förderspaltes zwischen den umlaufenden Transportbändern. Dieser bewirkt, dass die Produkte in dem Presswerk eine Vorpressung erfahren, bevor der eigentliche Pressvorgang zwischen dem Presswalzenpaar erfolgt. Die Presskraft der Vorpressung nimmt vom Einlaufbereich bei den Hilfswalzen bis hin zum Presswalzenpaar zu, so dass Luft zwischen den gefalteten Seiten eines jeweiligen Produktes herausgepresst werden kann.In one embodiment, the press shop is designed as a belt press with two, a press nip forming press rolls and two, a respective press roll encircling circulating conveyor belts.
In a further development of the pocket folding machine, an auxiliary roller is arranged upstream and downstream, as viewed in the transport direction, of a respective press roller. A respective press roll and the two associated auxiliary rolls are in each case wrapped around by a circulating conveyor belt. It is considered to be particularly advantageous that the vertical distance between the two auxiliary rollers arranged upstream is greater than the vertical distance between the two press rollers. This results in a taper of the conveying gap between the circulating conveyor belts. This causes the products in the press shop to undergo pre-pressing before the actual pressing operation takes place between the press roller pair. The pressing force of the pre-pressing increases from the inlet area at the auxiliary rollers to the press roller pair so that air can be squeezed out between the folded sides of a respective product.

In einer Weiterentwicklung der beschriebenen Taschenfalzmaschine sind dem Presswerk - in Transportrichtung gesehen - mindestens ein Messerwellenpaar zur Bearbeitung der gefalzten und abgepressten Signaturen und/oder eine weitere Falzstation, nämlich eine Taschenfalzstation oder eine Schwertfalzstation , nachgelagert.In a further development of the Taschenfalzmaschine described are the press shop - seen in the transport direction - at least one pair of knife shafts for processing the folded and pressed-off signatures and / or another folding station, namely a Taschenfalzstation or a Schwertfalzstation, downstream.

Die beschriebene Erfindung und die beschriebenen vorteilhaften Weiterbildungen der Erfindung stellen auch in Kombination miteinander - soweit dies technisch sinnvoll ist - vorteilhafte Weiterbildungen der Erfindung dar.The invention described and the described advantageous developments of the invention are also in combination with each other - as far as is technically feasible - advantageous developments of the invention.

Hinsichtlich weiterer Vorteile und in konstruktiver und funktioneller Hinsicht vorteilhafter Ausgestaltungen der Erfindung wird auf die Unteransprüche sowie die Beschreibung von Ausführungsbeispielen unter Bezugnahme auf die beiliegenden Figuren verwiesen.With regard to further advantages and constructive and functional advantageous embodiments of the invention, reference is made to the dependent claims and the description of exemplary embodiments with reference to the accompanying figures.

Ausführungsbeispielembodiment

Die Erfindung soll an Hand beigefügter Figuren noch näher erläutert werden. Einander entsprechende Elemente und Bauteile sind in den Figuren mit gleichen Bezugszeichen versehen. Zugunsten einer besseren Übersichtlichkeit der Figuren wurde auf eine maßstabsgetreue Darstellung verzichtet.
Es zeigen in schematischer Darstellung

  • Fig. 1 eine Taschenfalzmaschine mit Taschenfalzstation und nachgelagerter Pressstation gemäß dem Stand der Technik
  • Fig. 2 eine erfindungsgemäße Taschenfalzmaschine mit integriertem Falzwerk und Presswerk in einer ersten Ausführungsvariante
  • Fig. 3a das Presswerk der erfindungsgemäßen Taschenfalzmaschine in Betrieb
  • Fig. 3b das Presswerk der erfindungsgemäßen Taschenfalzmaschine während der Einstellung des Presswalzenabstandes
  • Fig. 4a eine erfindungsgemäße Taschenfalzmaschine mit integriertem Falzwerk und Presswerk in einer zweiten Ausführungsvariante
  • Fig. 4b die Verwendung von zwei Presswerken
  • Fig. 4c eine alternative Anordnung des Presswerks, welche nicht unter die Erfindung fällt
The invention will be explained in more detail with reference to attached figures. Corresponding elements and components are provided in the figures with the same reference numerals. In favor of a better clarity of the figures was waived a true to scale representation.
It show in a schematic representation
  • Fig. 1 a pocket folding machine with Taschenfalzstation and downstream pressing station according to the prior art
  • Fig. 2 a Taschenfalzmaschine invention with integrated folder and press shop in a first embodiment
  • Fig. 3a the pressing of the Taschenfalzmaschine invention in operation
  • Fig. 3b the pressing of the Taschenfalzmaschine invention during the adjustment of the press roll distance
  • Fig. 4a a Taschenfalzmaschine invention with integrated folder and press shop in a second embodiment
  • Fig. 4b the use of two pressing plants
  • Fig. 4c an alternative arrangement of the press shop, which does not fall under the invention

Figur 1 zeigt eine Taschenfalzmaschine 100 gemäß dem Stand der Technik. Ein Bogen 1000 durchläuft von einem Anleger 1 kommend eine Taschenfalzstation 3, wird dabei gefalzt und durchläuft nachfolgend eine räumlich beabstandete Pressstation 5, in welcher der gefalzte Bogen 1000, also die Signatur 1001, abgepresst wird, und nachfolgend weitere Falzstationen, bevor die Signatur 1001 in einem Ausleger 2 ausgelegt wird. Die Taschenfalzstation 3 besitzt mehrere Falzwerke, wobei ein jeweiliges Falzwerk zumindest eine Falztasche 3.1 und ein Paar von Falzwalzen 3.2 besitzt. Dem ersten Falzwerk vorgelagert - in Transportrichtung T gesehen - kann sich ein Messerwellenpaar 4.1 befinden, in welchem ein jeweiliger Bogen 1000 für den nachfolgenden Falzprozess beispielsweise durch Rillen, Schneiden und/oder Perforieren vorbereitet wird. Auch kann dem letzten Falzwerk ein Messerwellenpaar 4.2 nachgelagert sein, in welchem der gefalzte Bogen 1000 nachbearbeitet wird, beispielsweise, indem er einen Trennschnitt oder einen Beschnitt erhält. Der gefalzte Bogen 1000 wird nachfolgend an Transportbänder oder Transporttische übergeben, welche den gefalzten Bogen 1000 zu einem Presswalzenpaar transportieren, wo der gefalzte Bogen 1000 eine Pressung erfährt. Von den Transportbändern bzw. Transporttischen muss der gefalzte Bogen 1000 möglichst schnell zu den Presswalzen der Pressstation 5 transportiert werden, um ein Öffnen der Seiten des gefalzten Bogens 1000 zu vermeiden. FIG. 1 shows a pocket folding machine 100 according to the prior art. A sheet 1000 passes from a feeder 1 coming a Taschenfalzstation 3, is folded and then passes through a spatially spaced pressing station 5, in which the folded sheet 1000, ie the signature 1001, is pressed, and subsequently further folding stations before the signature 1001 in a boom 2 is designed. The Taschenfalzstation 3 has a plurality of folding units, wherein a respective folding unit has at least one folding pocket 3.1 and a pair of folding rollers 3.2. Preceded by the first folding unit - viewed in the transporting direction T - there can be a pair of knife shafts 4. 1 in which a respective sheet 1000 is prepared for the subsequent folding process, for example by creasing, cutting and / or perforating. Also, the last folding unit a pair of knife shaft 4.2 may be downstream, in which the folded sheet 1000 is reworked, for example, by receiving a separating cut or trimming. The folded sheet 1000 is subsequently transferred to conveyor belts or transport tables, which transport the folded sheet 1000 to a press roller pair where the folded sheet 1000 undergoes a pressing. Of the conveyor belts or transport tables of the folded sheet 1000 must be transported as quickly as possible to the press rollers of the pressing station 5 in order to avoid opening the sides of the folded sheet 1000.

In Figur 2 ist eine Taschenfalzmaschine 100 gemäß der Erfindung dargestellt. Wie auch die Taschenfalzmaschine 100 gemäß dem Stand der Technik besitzt diese eine Taschenfalzstation 3 mit einer Mehrzahl von Falzwerken, wobei ein jeweiliges Falzwerk zumindest eine Falztasche 3.1 und zugeordnet ein Paar von Falzwalzen 3.2 aufweist. Im Unterschied zur Maschine nach dem Stand der Technik ist keine Pressstation 5 vorgesehen. Stattdessen wurde eine Bandpresse 10 als Presswerk in die Taschenfalzstation 3 integriert. Die Bandpresse 10 schließt sich - in Transportrichtung T gesehen - unmittelbar an das letzte Paar von Falzwalzen 3.2 an. Das heißt, zwischen den letzten Falzwalzen 3.2 und der Bandpresse 10 sind keine weiteren Transportmittel vorgesehen. Den Falzwerken vorgelagert kann ein Messerwellenpaar 4.1 angeordnet sein. Der Bandpresse 10 nachgelagert kann ebenfalls ein Messerwellenpaar 4.2 vorgesehen sein.In FIG. 2 a pocket folding machine 100 according to the invention is shown. Like the pocket folding machine 100 according to the prior art, this has a Taschenfalzstation 3 with a plurality of folding units, wherein a respective folding unit has at least one folding pocket 3.1 and associated with a pair of folding rollers 3.2. In contrast to the machine according to the prior art, no pressing station 5 is provided. Instead, a belt press 10 was integrated as a press shop in the Taschenfalzstation 3. The belt press 10 joins - seen in the transport direction T - directly to the last pair of folding rollers 3.2. That is, between the last folding rollers 3.2 and the belt press 10 no further means of transport are provided. Preceded by the folding units, a pair of knife shafts 4. 1 can be arranged. Downstream of the belt press 10 can also be provided a pair of knife shafts 4.2.

Sowohl die Falzwalzen 3.2 als auch die Walzen 11, 13, 14, 16 der Bandpresse 10 und gegebenenfalls auch das vorgelagerte Messerwellenpaar 4.1 und das nachgelagerte Messerwellenpaar 4.2 sind im Falzwalzenstuhl 19 gemeinsam gelagert.Both the folding rollers 3.2 and the rollers 11, 13, 14, 16 of the belt press 10 and possibly also the upstream cutter shaft pair 4.1 and the downstream cutter shaft pair 4.2 are mounted together in the folding roller 19.

Die Presswalzen 11, 14 und damit auch die Transportbänder 12, 15 sowie die Falzwalzen 3.2 und gegebenenfalls auch die Messerwellen 4.1 und 4.2 können von einem gemeinsamen Antrieb (nicht dargestellt) rotativ angetrieben werden.The press rollers 11, 14 and thus also the conveyor belts 12, 15 and the folding rollers 3.2 and optionally also the cutter shafts 4.1 and 4.2 can be driven by a common drive (not shown) rotatably.

Der Aufbau und die Wirkweise der Bandpresse 10 werden anhand der Figuren 3a und 3b nachfolgend näher erläutert:The structure and mode of action of the belt press 10 are based on the FIGS. 3a and 3b explained in more detail below:

Stromaufwärtig und stromabwärtig der oberen Presswalze 11 sind obere Hilfswalzen 13 angeordnet. Sowohl die obere Presswalze 11 als auch die oberen Hilfswalzen 13 werden von mindestens einem oberen Transportband 12 umschlungen. Stromaufwärtig und stromabwärtig der unteren Presswalze 14 sind untere Hilfswalzen 16 angeordnet. Sowohl die untere Presswalze 14 als auch die unteren Hilfswalzen 16 werden zusammen von mindestens einem unteren Transportband 15 umschlungen. Bei den Transportbändern 12, 15 handelt es sich um umlaufende Transportbänder, welche einen jeweiligen gefalzten Bogen 1001 während der Pressung weitertransportieren. Der Abstand m zwischen den beiden stromaufwärtigen Hilfswalzen 13 und 16 ist dabei größer als der Abstand n zwischen den beiden Presswalzen 11 und 14. Infolgedessen wird von den Transportbändern 12 und 15 ein sich verjüngender Transportspalt gebildet, welcher bewirkt, dass Luft aus einem gefalzten Bogen 1001 herausgepresst werden kann, bevor dieser das Presswalzenpaar 11, 14 erreicht und dort seine eigentliche Pressung erfährt. Auch besonders kompakte Produkte können transportiert und abgepresst werden. Eine der beiden Presswalzen 11, 14 ist verstellbar ausgeführt.Upstream and downstream of the upper press roll 11, upper auxiliary rolls 13 are arranged. Both the upper pressure roller 11 and the upper auxiliary rollers 13 are wrapped by at least one upper conveyor belt 12. Upstream and downstream of the lower press roller 14, lower auxiliary rollers 16 are arranged. Both the lower press roll 14 and the lower auxiliary rolls 16 are wrapped together by at least one lower conveyor belt 15. The conveyor belts 12, 15 are circulating conveyor belts, which transport a respective folded sheet 1001 during the pressing. The distance m between the two upstream auxiliary rolls 13 and 16 is greater than the distance n between the two press rolls 11 and 14. As a result, a tapered transport gap is formed by the conveyor belts 12 and 15, which causes air from a folded sheet 1001 can be pressed out before it reaches the press roller pair 11, 14 and there experiences its actual pressing. Even very compact products can be transported and pressed. One of the two press rolls 11, 14 is made adjustable.

Sofern die Falzmaschine 100 kein nachgelagertes Messerwellenpaar 4.2 besitzt, können die stromabwärtigen Hilfswalzen 13 und 16 auch in Transportrichtung weiter verschoben werden, sodass die Transportbänder 12, 15 den Weitertransport von kurzen Signaturen 1001 zu einer nachfolgenden Bearbeitungsstation (nicht dargestellt) ermöglichen, ohne dass sich die Signaturen 1001 öffnen.If the folding machine 100 has no downstream pair of knife shafts 4.2, the downstream auxiliary rollers 13 and 16 can be moved further in the transport direction, so that the conveyor belts 12, 15 allow the further transport of short signatures 1001 to a subsequent processing station (not shown) without the Open signatures 1001.

Im dargestellten Ausführungsbeispiel kann die untere Presswalze 14 eine Zustellbewegung Z ausführen. Dazu ist die untere Presswalze 14 mit einem Pneumatikzylinder 17 verbunden, der die Presskraft F aufbauen kann. Die Bandpresse 10 besitzt weiterhin eine Einstelleinrichtung 18 mit motorisch verstellbarem Anschlag, welcher eine Verstellung a erfahren kann. Soll eine Änderung des Abstands zwischen den beiden Presswalzen 11, 14 erfolgen, so wird die vom Pneumatikzylinder 17 erzeugte Presskraft F abgebaut und der verstellbare Anschlag der Einstelleinrichtung 18 verschoben. Da die Einstellung nicht gegen die hohe Presskraft F erfolgt, genügt ein steuerbarer elektromotorischer Antrieb kleiner Leistung zur Betätigung der Einstelleinrichtung 18. Wie in Figur 3b dargestellt, wurde der Pneumatikzylinder 17 deaktiviert, d.h. die Presskraft F abgebaut, und der Anschlag der Einstelleinrichtung 18 verstellt. Nach erfolgter Verstellung a des Anschlags der Einstelleinrichtung 18 wird der Pneumatikzylinder 17 erneut aktiviert und die Presskraft F aufgebaut.In the illustrated embodiment, the lower press roller 14 perform a feed movement Z. For this purpose, the lower pressure roller 14 is connected to a pneumatic cylinder 17, which can build up the pressing force F. The belt press 10 further has an adjusting device 18 with a motor-adjustable stop, which can undergo an adjustment a. If a change in the distance between the two press rolls 11, 14 take place, the pressing force F generated by the pneumatic cylinder 17 is reduced and the adjustable stop of the setting device 18 is displaced. Since the adjustment does not take place against the high pressing force F, a controllable electric motor drive of small power is sufficient for actuating the adjusting device 18. As in FIG. 3b illustrated, the pneumatic cylinder 17 has been deactivated, ie the pressing force F degraded, and adjusts the stop of the adjuster 18. After adjustment a of the stop of the adjustment 18 of the pneumatic cylinder 17 is activated again and the pressing force F built.

Der Pneumatikzylinder 17 und die Einstelleinrichtung 18 können von einer gemeinsamen Maschinensteuerung angesteuert werden (nicht dargestellt).The pneumatic cylinder 17 and the adjusting device 18 can be controlled by a common machine control (not shown).

In Figur 4a ist eine Taschenfalzmaschine 100 gemäß der Erfindung dargestellt. Wie auch die Taschenfalzmaschine 100 gemäß dem Stand der Technik besitzt diese eine Taschenfalzstation 3 mit einer Mehrzahl von Falzwerken, wobei ein jeweiliges Falzwerk zumindest eine Falztasche 3.1 und zugeordnet ein Paar von Falzwalzen 3.2 aufweist. Im Unterschied zur an Hand der Fig. 2 beschriebenen Maschine 100 ist keine Bandpresse sondern eine Walzenpresse 10 als Presswerk in die Taschenfalzstation 3 integriert. Die Walzenpresse 10 schließt sich - in Transportrichtung T gesehen - unmittelbar an das letzte Paar von Falzwalzen 3.2 an. Das heißt, zwischen den letzten Falzwalzen 3.2 und der Walzenpresse 10 sind keine weiteren Transportmittel vorgesehen. Den Falzwerken vorgelagert kann ein Messerwellenpaar 4.1 angeordnet sein. Der Walzenpresse 10 nachgelagert kann ebenfalls ein Messerwellenpaar 4.2 vorgesehen sein.In FIG. 4a a pocket folding machine 100 according to the invention is shown. Like the pocket folding machine 100 according to the prior art, this has a Taschenfalzstation 3 with a plurality of folding units, wherein a respective folding unit has at least one folding pocket 3.1 and associated with a pair of folding rollers 3.2. In contrast to the hand of the Fig. 2 described machine 100 is not a belt press but a roller press 10 integrated as a press shop in the Taschenfalzstation 3. The roller press 10 follows - as seen in the transport direction T - directly to the last pair of folding rollers 3.2. That is, between the last folding rollers 3.2 and the roller press 10 no further means of transport are provided. Preceded by the folding units, a pair of knife shafts 4. 1 can be arranged. Downstream of the roll press 10 may also be provided a pair of knife shafts 4.2.

Sowohl die Falzwalzen 3.2 als auch die Walzen 11, 14 der Walzenpresse 10 und gegebenenfalls auch das vorgelagerte Messerwellenpaar 4.1 und das nachgelagerte Messerwellenpaar 4.2 sind im Falzwalzenstuhl 19 gemeinsam gelagert.Both the folding rollers 3.2 and the rollers 11, 14 of the roller press 10 and possibly also the upstream cutter shaft pair 4.1 and the downstream cutter shaft pair 4.2 are stored together in the folding roller 19.

Die Presswalzen 11, 14 sowie die Falzwalzen 3.2 und gegebenenfalls auch die Messerwellen 4.1 und 4.2 können von einem gemeinsamen Antrieb (nicht dargestellt) rotativ angetrieben werden.The press rollers 11, 14 and the folding rollers 3.2 and optionally also the cutter shafts 4.1 and 4.2 can be driven in rotation by a common drive (not shown).

In Fig. 4b ist eine alternative Ausführung einer Taschenfalzstation 3 dargestellt. Anstelle der vorgelagerten Messerwellen 4.1 befindet sich ebenfalls eine Pressstation 10. Eine derartige Ausführung wird als vorteilhaft angesehen, wenn es sich bei der Taschenfalzstation 3 um eine zweite Taschenfalzstation handelt, d.h. wenn zwischen Anleger 1 und Taschenfalzstation 3 noch eine weitere Taschenfalzstation 3 angeordnet ist. Somit können die bereits in der ersten Falzstation 3 gefalzten Signaturen 1001 vor dem erneuten Falzen abgepresst werden, wodurch eine höhere Falzgenauigkeit erreicht wird. Da zwischen zwei Taschenfalzstationen 3 in der Regel ein die Signaturen 1001 um 90° umleitender Transporttisch verwendet wird (nicht dargestellt), kann bei einer Ausführung der ersten Taschenfalzstation 3 gemäß Fig. 4a und der zweiten Taschenfalzstation 3 gemäß Fig. 4b eine besonders gute Pressung erzielt werden, da die Falzbrüche der Signatur 1001 in der nachgelagerten Pressstation 10 der ersten Falzstation 3 kurz und in der vorgelagerten Pressstation 10 der zweiten Falzstation 3 länger gepresst werden.
Die vorgelagerte Pressstation 10 kann auch zusätzlich zu einem Messerwellenpaar 4.1 vorgesehen sein.In Fig. 4b an alternative embodiment of a pocket folding station 3 is shown. Instead of the upstream cutter shafts 4.1 is also a pressing station 10. Such a design is considered advantageous if it is at the Taschenfalzstation 3 is a second Taschenfalzstation, ie if between the feeder 1 and 3 Taschenfalzstation yet another Taschenfalzstation 3 is arranged. Thus, the already folded in the first folding station 3 signatures 1001 can be pressed before re-folding, whereby a higher folding accuracy is achieved. Since between two Taschenfalzstationen 3 usually the signatures 1001 by 90 ° redirecting transport table is used (not shown), in an embodiment of the first Taschenfalzstation 3 according to Fig. 4a and the second pocket folding station 3 according to Fig. 4b a particularly good pressure can be achieved, since the fold breaks of the signature 1001 in the downstream pressing station 10 of the first folding station 3 are pressed short and in the upstream pressing station 10 of the second folding station 3 longer.
The upstream pressing station 10 may also be provided in addition to a pair of knife shafts 4.1.

Die Einstellung des Presswalzenabstandes erfolgt dabei gleich wie bei der in Figuren 3a und 3b gezeigten Ausführungsform.The adjustment of the press roll distance is carried out the same as in the FIGS. 3a and 3b shown embodiment.

In Fig. 4c ist eine nicht zur Erfindung gehörende Taschenfalzmaschine 100 mit einer Taschenfalzstation 3 dargestellt, welche nur eine vorgelagerte Pressstation 10 aufweist.In Fig. 4c is a not belonging to the invention Taschenfalzmaschine 100 shown with a Taschenfalzstation 3, which has only an upstream pressing station

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Anlegerinvestor
22
Ausleger/weitere FalzstationBoom / further folding station
33
TaschenfalzstationTaschenfalzstation
3.13.1
Falztaschefolding pocket
3.23.2
Falzwalzefolding roller
4.14.1
Vorgelagertes MesserwellenpaarUpstream knife shaft pair
4.24.2
Nachgelagertes MesserwellenpaarDownstream knife shaft pair
55
Pressstationpressing station
1010
Presswerk (Bandpresse bzw. Walzenpresse)Pressing plant (belt press or roller press)
1111
Obere PresswalzeUpper press roller
1212
Oberes TransportbandUpper conveyor belt
1313
Obere HilfswalzeUpper auxiliary roller
1414
Untere Presswalze (verstellbar)Lower press roller (adjustable)
1515
Unteres TransportbandLower conveyor belt
1616
Untere HilfswalzeLower auxiliary roll
1717
Pneumatikzylinderpneumatic cylinder
1818
Einstelleinrichtung mit motorisch verstellbarem AnschlagAdjustment device with motor-adjustable stop
1919
FalzwalzenstuhlFalzwalzenstuhl
100100
Taschenfalzmaschinebuckle
10001000
Bogenbow
10011001
gefalzter Bogen (Signatur)folded sheet (signature)
aa
Verstellung AnschlagAdjustment stop
mm
stromaufwärtiger Abstand der Hilfswalzenupstream distance of the auxiliary rollers
nn
Abstand der PresswalzenDistance of the press rollers
TT
Transportrichtungtransport direction
FF
Presskraftpressing force
ZZ
Zustellbewegung PresswalzeInfeed movement press roller

Claims (6)

  1. Buckle folder (100) for folding sheets (1000), in particular sheets of paper, cardboard, or plastics, into signatures (1001) comprising at least one buckle folding assembly (3) including at least one folding unit (3.1, 3.2) and at least one pressing unit (10) for pressing the signatures (1001),
    wherein the at least one folding unit (3.1, 3.2) includes at least one buckle unit (3.1) and a pair of folding rollers (3.2) assigned to a respective buckle unit (3.1), and
    wherein at least one pressing unit (10) is disposed downstream of the at least one folding unit (3.1, 3.2),
    wherein the at least one pressing unit (10) is disposed immediately downstream of a last pair of folding rollers (3.2) as viewed in a direction of transport (T),
    wherein the folding rollers (3.2) of the at least one folding unit and the pressing rollers (11, 14) of the at least one pressing unit (10) are in particular disposed in a common folding roller frame (19),
    wherein an adjustment device (18) for adapting (a) the distance (n) between the two pressing rollers (11, 14) of the pressing unit is assigned to the pressing rollers (11, 14),
    characterized in
    that the pressing unit (10) includes at least one pneumatic cylinder (17) for applying a pressure to the pressing rollers (11, 14), and
    that the adjustment device (18) has a controllable electric-motor drive.
  2. Buckle folder according to claim 1,
    characterized in
    that the folding rollers (3.2) and the pressing rollers (11, 14) are driven by a common drive.
  3. Buckle folding unit according to any one of the preceding claims,
    characterized in
    that the pressing unit (10) is designed as a tape pressing device including two pressing rollers (11,1 4) forming a pressure nip and two revolving transport belts (12, 15), each one wrapped around a respective one of the pressing rollers (11, 14).
  4. Buckle folder according to claim 3,
    characterized in
    that a respective auxiliary roller (13, 16) is disposed upstream and downstream of a respective pressing roller (11, 14) and
    that in particular the vertical distance (m) between the two upstream auxiliary rollers (13, 16) is greater than the vertical distance (n) between the two pressing rollers (11, 14).
  5. Buckle folder according to any one of the preceding claims,
    characterized in
    that at least one knife shaft pair (4.2) and/or a further folding assembly (2) is provided downstream of the pressing unit (10).
  6. Buckle folder according to claim 5,
    characterized in
    that a further pressing unit (10) is provided upstream of the at least one folding unit (3.2) of the further folding assembly (2).
EP15166889.4A 2014-05-21 2015-05-08 Pocket folding machine with integrated press Active EP2960193B1 (en)

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DE102014007446.3A DE102014007446A1 (en) 2014-05-21 2014-05-21 Pocket folding machine with integrated belt press

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CN105966977A (en) * 2016-06-23 2016-09-28 浙江寿原机械有限公司 Knife group for folding machine
CN106185448A (en) * 2016-08-25 2016-12-07 北京图文天地制版印刷有限公司 A kind of folding pressuring flat device
DE102017101534A1 (en) 2017-01-26 2018-07-26 Guk-Falzmaschinen Griesser & Kunzmann Gmbh & Co. Kg folding machine

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DE29507466U1 (en) * 1995-05-04 1995-07-06 C.P. Bourg S.A., Ottignies Device for post-processing a folded stack of sheets of paper
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US20070207910A1 (en) * 2006-03-03 2007-09-06 Vijuk Equipment, Inc. Outsert-forming machine and method

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PT2960193T (en) 2018-06-22
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DE102014007446A1 (en) 2015-11-26

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