EP0622322A1 - Folding device for rotary printing machines - Google Patents

Folding device for rotary printing machines Download PDF

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Publication number
EP0622322A1
EP0622322A1 EP94106299A EP94106299A EP0622322A1 EP 0622322 A1 EP0622322 A1 EP 0622322A1 EP 94106299 A EP94106299 A EP 94106299A EP 94106299 A EP94106299 A EP 94106299A EP 0622322 A1 EP0622322 A1 EP 0622322A1
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EP
European Patent Office
Prior art keywords
cylinder
folding
gripper
systems
transfer cylinder
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
EP94106299A
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German (de)
French (fr)
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EP0622322B1 (en
Inventor
Manfred Kepert
Rudolf Stäb
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.)
Koenig and Bauer AG
Original Assignee
Albert Frankenthal AG
Koenig and Bauer Albert AG
Priority date (The priority date 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 date listed.)
Filing date
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Application filed by Albert Frankenthal AG, Koenig and Bauer Albert AG filed Critical Albert Frankenthal AG
Publication of EP0622322A1 publication Critical patent/EP0622322A1/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
    • B65H45/16—Rotary folders
    • B65H45/162—Rotary folders with folding jaw cylinders
    • B65H45/168—Rotary folders with folding jaw cylinders having changeable mode of operation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/54—Auxiliary folding, cutting, collecting or depositing of sheets or webs
    • B41F13/56—Folding or cutting
    • B41F13/60—Folding or cutting crosswise

Definitions

  • the invention relates to a folder for rotary printing presses according to the preamble of claim 1.
  • a folding apparatus for a rotary printing press has become known from US Pat. No. 4,159,823, in which, after the products have been cross-cut and the first cross-fold has been formed, the products are split into two deliveries, the conveying speed of the products being between the folding jaw cylinder and the delivery arranged gripper and transfer cylinder is adjustable by means of a gear so that the products are reduced in delivery speed in their conveying speed.
  • a disadvantage of this folding device is that at high production speeds on the folding jaw cylinder a so-called "whip effect" occurs due to the product to be folded, ie that the end of the product held by the gripper or by the puncture undergoes a reversal of direction after the first transverse fold has been formed, so that depending on the production speed and the weight of the product to be folded, large inertia forces are braked and must be accelerated again in the opposite direction. On the one hand, this can lead to the product slipping out of the gripper devices or to tearing off the product held with an increased clamping force from the holding devices.
  • the invention has for its object to provide a folder for high production speeds, in which damage to the product is avoided when producing the first transverse fold.
  • the splitting of the products in the production direction behind the collecting cylinder into two product paths leading separately to the folding process and a subsequent one-stage or multi-stage delay of the unfolded signatures before the first transverse fold is formed ensures a reduced speed during the folding process in the case of an uncollected production (double production) and thus also occur to a lesser extent mass forces so that the negative effects of the whip effect, which can occur at high speed, are avoided.
  • each signature z. B. in the line of alignment of the subsequent first cross fold with staples. This can be the case, in particular, for magazines produced by gravure printing.
  • the folder according to the invention has two side frames arranged parallel to one another, one of which however, only one side frame 1 is shown.
  • a printed paper web 2 coming from a strand feed passes through a first cross-cutting device 6 consisting of cutting and grooving cylinders 3, 4 for making a perforation cut in the paper web 2.
  • a pair of pull rollers 7 is arranged upstream of this first cross-cutting device 6.
  • a second cross-cutting device 11 consisting of a cutting cylinder 8 and a grooved cylinder 9.
  • the cutting cylinder 8 is provided with a cutting knife bar 12.
  • the groove cylinder 9 has a groove strip 13 on its circumference.
  • the second cross cutting device 11 is also assigned a pair of pull rollers 14.
  • the second cross cutting device 11 separates the paper web 2 at the webs not yet cut by the first cross cutting device 6 into individual products, each designated 5.
  • the second cross cutting device 11 is comprised of an acceleration section 16, 17, which can each consist of a driven belt guide system and feeds the signatures 5 to a seven-field collecting cylinder 18, which is equipped with seven known gripper systems 19 on its circumference. Instead of the gripper systems 19, punctures can also be provided if necessary.
  • a seven-field collecting cylinder 18 which is equipped with seven known gripper systems 19 on its circumference. Instead of the gripper systems 19, punctures can also be provided if necessary.
  • a four-field stapling cylinder 21 may be arranged, which means if necessary his stapling heads, which are arranged on the circumference and are not shown, in the alignment of the cross fold to be introduced brings staples and in each case cooperates with an abutment (not shown) on the lateral surface of the collecting cylinder 18.
  • Such a stapling device is described in DE - PS 11 89 562.
  • two four-field transfer cylinders 22, each with two known gripper systems 23, are arranged offset from one another.
  • Known tape guidance systems 24, 26 are provided on the circumference of the collecting cylinder 18 between the stapling cylinder 21 and the first transfer cylinder 22 seen in the direction of rotation of the collecting cylinder 18 and between the first transfer cylinder 22 and the second transfer cylinder 22 viewed in the direction of rotation of the collecting cylinder 18.
  • the peripheral speed of the cylinders 18, 22 can be more than 20 m / s.
  • Downstream of the respective transfer cylinder 22 is a six-field gripper and folder knife cylinder 27, each with three gripper systems 28, which are mutually offset by 120 ° and arranged alternately, as well as folder knife systems 29 and a six-field folder cylinder 31, each with three folder systems 32.
  • the running speed of the signatures 5 is reduced by approximately 25% by the transfer from the transfer cylinder 22 to the gripper and folding knife cylinder 27, so that the folded product, also denoted by 5, when the "whip effect" occurs during the folding process between the gripper and folding knife cylinder 27 and the folding jaw cylinder 31, its speed is reduced by about a quarter and thus by about half its mass forces.
  • a known belt guide system 33 is arranged in the product running direction on the circumference of the gripper and folding knife cylinder 27 located between the transfer cylinder 22 and the folding jaw cylinder 31.
  • a paper guide bracket 34 is provided in the direction of production behind the point of contact of the two cylinders 27, 31 with one another (plus product 5) in order also to reduce the effect of the "whip effect".
  • the products 5, which are now provided with a first transverse fold and optionally stapled, are reduced in their running speed via a guide roller 36, 37, subsequently via a deflection roller 38 and a deceleration section consisting of two belt guide systems 39, 41, to a paddle wheel 43, which in turn reduces the Products 5 transferred to a cross fold delivery 44.
  • Fig. 2 shows a plan view of a drive gear train of the cylinders with indicated axle journals 18c, 22c, 27c, 31c of the cylinders 18, 22, 27, 31.
  • a bevel gear 47 connected to a main drive shaft 46 is connected to a drive gear 48 in a non-positive and positive manner.
  • the gear 48 meshes with a gear 18a of the collecting cylinder 18.
  • the gear 18a in turn meshes with a gear 22a of the transfer cylinder 22, which is non-positively and positively connected to a smaller gear 22b.
  • the gear 22b meshes with a gear 27a of the gripper part of the gripper and folding knife cylinder 27, the reduction between the gears 22b, 27a being such that there is a reduction in the peripheral speed of approximately 25% between the cylinders 22, 27.
  • the gear 27a is non-positively and positively connected to the gear 27b by means of a shaft.
  • the toothed wheel 27b meshes with a toothed wheel 31a of the jaw cylinder 31.
  • the toothed wheels mentioned are each held non-positively and positively by means of bearings and shafts in the side frame 1, which are not specified.
  • the drive wheel train shown in FIG. 2 also applies analogously to the second product path, consisting of the double of the devices 22, 27 and 31.
  • the drives for the stitching cylinder 21 and for the devices following the jaw cylinder 31 are not taken into account for the sake of simplicity .
  • the gripper and folding knife part of the gripper and folding knife cylinder 27 is with a wheel set and differential, not shown connected for folding regulation.
  • the cylinders 22, 27 thus function as a single-stage device for reducing the speed of signatures 5.
  • FIG. 3 shows a side view, reduced to the cylinders only, of a second exemplary embodiment of a folder according to the invention.
  • the cylinders 18, 22, 49, 27, 31 have axle journals 18c, 22c, 49c, 27c, 31c indicated in FIG. 4.
  • This two-stage device 22, 49, 27 is particularly advantageous for reducing the speed of signatures 5 in front of the jaw cylinder 31 in the case of double production. If production is collected several times, one of the product paths can be set up via a device 22, 27, 31, 38, 43, 48 can be switched off by known means.
  • the transfer cylinder 49 and the gripper and folding knife cylinder 27 each bring about a reduction in the peripheral speed of approximately 25%.

Abstract

In a folding device for rotary printing machines, the object consists in introducing a first transverse fold into signatures (5) at high production speeds whilst avoiding damage to the product. According to the invention, this takes place in that at least one single-step device (22, 27) is arranged between the collector drum (18) and the folding jaw cylinder (31) to reduce the speed of signatures. The inertia forces occurring are thus reduced as well as the negative influences of the whip effect at high speed.

Description

Die Erfindung betrifft einen Falzapparat für Rotationsdruckmaschinen entsprechend dem Oberbegriff des Patentanspruches 1.The invention relates to a folder for rotary printing presses according to the preamble of claim 1.

Durch die US - PS 41 59 823 ist ein Falzapparat für eine Rotationsdruckmaschine bekanntgeworden, bei welcher nach dem Querschneiden der Produkte sowie dem Ausbilden des ersten Querfalzes ein Splitten der Produkte in zwei Auslagen erfolgt, wobei die Fördergeschwindigkeit der Produkte durch zwischen dem Falzklappenzylinder und der Auslage angeordneten Greifer- und Übergabezylinder mittels Getriebe einstellbar ist, so daß die Produkte zur Auslage hin in ihrer Fördergeschwindigkeit vermindert werden.A folding apparatus for a rotary printing press has become known from US Pat. No. 4,159,823, in which, after the products have been cross-cut and the first cross-fold has been formed, the products are split into two deliveries, the conveying speed of the products being between the folding jaw cylinder and the delivery arranged gripper and transfer cylinder is adjustable by means of a gear so that the products are reduced in delivery speed in their conveying speed.

Nachteilig bei diesem Falzapparat ist, daß bei hohen Produktionsgeschwindigkeiten am Falzklappenzylinder durch das zu falzende Produkt ein sogenannter "Peitscheneffekt" auftritt, d. h. daß das vom Greifer bzw. von der Punktur festgehaltene Ende des Produktes nach dem Ausbilden des ersten Querfalzes eine Richtungsumkehr erfährt, so daß in Abhängigkeit von der Produktionsgeschwindigkeit und des Gewichtes des zu falzenden Produktes große Massenkräfte abgebremst und in Gegenrichtung wieder beschleunigt werden müssen. Dies kann einerseits zum Herausrutschen des Produktes aus den Greifereinrichtungen führen oder zum Abreißen des mit einer erhöhten Klemmkraft gehaltenen Produktes von den Halteeinrichtungen.A disadvantage of this folding device is that at high production speeds on the folding jaw cylinder a so-called "whip effect" occurs due to the product to be folded, ie that the end of the product held by the gripper or by the puncture undergoes a reversal of direction after the first transverse fold has been formed, so that depending on the production speed and the weight of the product to be folded, large inertia forces are braked and must be accelerated again in the opposite direction. On the one hand, this can lead to the product slipping out of the gripper devices or to tearing off the product held with an increased clamping force from the holding devices.

Der Erfindung liegt die Aufgabe zugrunde, einen Falzapparat für hohe Produktionsgeschwindigkeiten zu schaffen, bei welchem eine Beschädigung des Produktes beim Herstellen des ersten Querfalzes vermieden wird.The invention has for its object to provide a folder for high production speeds, in which damage to the product is avoided when producing the first transverse fold.

Erfindungsgemäß geschieht dies durch die Merkmale des kennzeichnenden Teils des Patentanspruches 1.According to the invention, this is done by the features of the characterizing part of patent claim 1.

Durch die Erfindung werden insbesondere folgende Vorteile erzielt:
Das in Produktionsrichtung hinter dem Sammelzylinder erfolgende Aufsplitten der Produkte in zwei getrennt zum Falzvorgang führende Produktwege und einer nachfolgenden einstufigen oder mehrstufigen Verzögerung der ungefalzten Signaturen vor dem Bilden des ersten Querfalzes sichert bei einer ungesammelten Produktion (Doppelproduktion) eine verringerte Geschwindigkeit beim Falzvorgang und somit treten auch in verringertem Maße Massenkräfte auf, so daß die negativen Wirkungen des Peitscheneffektes, die bei hoher Geschwindigkeit auftreten können, vermieden werden. Darüberhinaus ist es möglich, den erfindungsgemäßen Falzapparat bei Sammelproduktion bis dreimal Sammeln einzusetzen. Dabei ist es auch möglich, nur einen der beiden vom Sammelzylinder abführenden Produktwege zu benutzen, insbesondere bei einfach gesammelter Produktion. Weiterhin ist es durch die Anordnung eines ebenfalls mit dem Sammelzylinder zusammenwirkenden Heftzylinders möglich, jede Signatur z. B. in der Fluchtlinie des nachfolgenden ersten Querfalzes mit Heftklammern zu versehen. Dies kann insbesondere bei im Tiefdruckverfahren hergestellten Zeitschriften der Fall sein.The following advantages are achieved in particular by the invention:
The splitting of the products in the production direction behind the collecting cylinder into two product paths leading separately to the folding process and a subsequent one-stage or multi-stage delay of the unfolded signatures before the first transverse fold is formed ensures a reduced speed during the folding process in the case of an uncollected production (double production) and thus also occur to a lesser extent mass forces so that the negative effects of the whip effect, which can occur at high speed, are avoided. In addition, it is possible to up to the folder according to the invention in collective production to collect three times. It is also possible to use only one of the two product paths leading away from the collecting cylinder, particularly in the case of simply collected production. Furthermore, it is possible by the arrangement of a stapling cylinder also cooperating with the collecting cylinder, each signature z. B. in the line of alignment of the subsequent first cross fold with staples. This can be the case, in particular, for magazines produced by gravure printing.

Die Erfindung wird nachfolgend an zwei Ausführungsbeispielen näher erläutert. In den zugehörigen Zeichnungen zeigen

Fig. 1
eine schematische Seitenansicht eines erfindungsgemäßen Falzapparates,
Fig. 2
eine Draufsicht auf einen Antriebsräderzug,
Fig. 3
eine vereinfachte Seitenansicht eines zweiten Ausführungsbeispiels eines erfindungsgemäßen Falzapparates,
Fig. 4
eine Draufsicht auf einen Antriebsräderzug für die Darstellung nach Fig. 3.
The invention is explained in more detail below using two exemplary embodiments. Show in the accompanying drawings
Fig. 1
2 shows a schematic side view of a folder according to the invention,
Fig. 2
a plan view of a drive wheel train,
Fig. 3
2 shows a simplified side view of a second exemplary embodiment of a folder according to the invention,
Fig. 4
3 shows a plan view of a drive wheel train for the representation according to FIG. 3.

Der erfindungsgemäße Falzapparat weist zwei parallel zueinander angeordnete Seitengestelle auf, von denen jedoch nur ein Seitengestell 1 dargestellt ist. Eine von einer nichtdargestellten Strangzuführung kommende, bedruckte Papierbahn 2 durchläuft eine aus Schneid- und Nutenzylinder 3, 4 bestehende erste Querschneideeinrichtung 6 zum Einbringen eines Perforierschnittes in die Papierbahn 2. Dieser ersten Querschneideeinrichtung 6 ist ein Zugwalzenpaar 7 vorgeordnet. Im Bereich des Falzapparateinlaufes befindet sich weiterhin eine aus Schneidezylinder 8 und Nutenzylinder 9 bestehende zweite Querschneideeinrichtung 11. Der Schneidezylinder 8 ist mit einer Schneidmesserleiste 12 versehen. Der Nutenzylinder 9 weist an seinem Umfang eine Nutenleiste 13 auf. Der zweiten Querschneidevorrichtung 11 ist ebenfalls ein Zugwalzenpaar 14 zugeordnet. Die zweite Querschneideeinrichtung 11 trennt die Papierbahn 2 an den noch nicht durch die erste Querschneideeinrichtung 6 geschnittenen Stegen jeweils in einzelne, jeweils mit 5 bezeichnete Produkte. Die zweite Querschneideeinrichtung 11 wird von einer Beschleunigungsstrecke 16, 17 umfaßt, welche jeweils aus einem angetriebenen Bandleitsystem bestehen kann und die Signaturen 5 einem siebenfeldrigen Sammelzylinder 18 zuführt, welcher an seinem Umfang mit sieben bekannten Greifersystemen 19 ausgestattet ist. Statt der Greifersysteme 19 können bei Bedarf auch Punkturen vorgesehen sein. Unmittelbar nach dem Einlauf der Signaturen 5 in den Sammelzylinder 18 kann z. B. ein vierfeldriger bekannter Heftzylinder 21 angeordnet sein, welcher im Bedarfsfalle mittels seiner am Umfang angeordneten, nichtdargestellten Heftköpfe in der Fluchtlinie des noch einzubringenden Querfalzes Heftklammern einbringt und dabei jeweils mit einem nichtdargestellten Widerlager auf der Mantelfläche des Sammelzylinders 18 zusammenwirkt. Eine derartige Hefteinrichtung ist in der DE - PS 11 89 562 beschrieben. Am Umfang des Sammelzylinders 18 sind weiterhin gegeneinander versetzt zwei jeweils vierfeldrige Überführzylinder 22 mit jeweils zwei bekannten Greifersystemen 23 angeordnet. Am Umfang des Sammelzylinders 18 sind zwischen dem Heftzylinder 21 und dem in Drehrichtung des Sammelzylinders 18 gesehenen ersten Überführzylinders 22 sowie zwischen dem ersten Überführzylinder 22 und dem in Drehrichtung des Sammelzylinders 18 gesehenen zweiten Überführzylinders 22 bekannte Bandleitsysteme 24, 26 vorgesehen. Die Umfangsgeschwindigkeit der Zylinder 18, 22 kann mehr als 20 m/s betragen. Dem jeweiligen Überführzylinder 22 ist in Produktlaufrichtung ein sechsfeldriger Greifer- und Falzmesserzylinder 27 mit jeweils drei um 120° gegeneinander versetzten und wechselweise angeordneten Greifersystemen 28 sowie Falzmessersystemen 29 sowie ein sechsfeldriger Falzklappenzylinder 31 mit jeweils drei Falzklappensystemen 32 nachgeordnet. Durch die Anordnung eines später noch näher zu beschreibenden Getriebes wird die Laufgeschwindigkeit der Signaturen 5 durch die Übergabe vom Überführzylinder 22 zum Greifer- und Falzmesserzylinder 27 um etwa 25% gesenkt, so daß das gefalzte Produkt, ebenfalls mit 5 bezeichnet, beim Auftreten des "Peitscheneffektes" beim Falzvorgang zwischen dem Greifer- und Falzmesserzylinder 27 und dem Falzklappenzylinder 31 in seiner Geschwindigkeit um etwa ein Viertel und somit mit seinen Massekräften etwa um die Hälfte reduziert ist. In Produktlaufrichtung ist am Umfang des zwischen dem Überführzylinder 22 und dem Falzklappenzylinder 31 befindlichen Greifer- und Falzmesserzylinders 27 ein bekanntes Bandleitsystem 33 angeordnet. In Produktionslaufrichtung hinter der Berührungsstelle der beiden Zylinder 27, 31 miteinander (zuzüglich Produkt 5) ist ein Papierleitbügel 34 vorgesehen, um ebenfalls die Wirkung des "Peitscheneffektes" zu vermindern. Die nunmehr mit einem ersten Querfalz versehenen und ggf. gehefteten Produkte 5 werden über Bandleitsysteme 36, 37 nachfolgend über eine Umlenkwalze 38 und eine aus zwei Bandleitsystemen 39, 41 bestehenden Verzögerungsstrecke um etwa 55% in ihrer Laufgeschwindigkeit reduziert einem Schaufelrad 43 zugeführt, welches wiederum die Produkte 5 auf eine Querfalzauslage 44 überführt.The folder according to the invention has two side frames arranged parallel to one another, one of which however, only one side frame 1 is shown. A printed paper web 2 coming from a strand feed (not shown) passes through a first cross-cutting device 6 consisting of cutting and grooving cylinders 3, 4 for making a perforation cut in the paper web 2. A pair of pull rollers 7 is arranged upstream of this first cross-cutting device 6. In the area of the folder inlet there is also a second cross-cutting device 11 consisting of a cutting cylinder 8 and a grooved cylinder 9. The cutting cylinder 8 is provided with a cutting knife bar 12. The groove cylinder 9 has a groove strip 13 on its circumference. The second cross cutting device 11 is also assigned a pair of pull rollers 14. The second cross cutting device 11 separates the paper web 2 at the webs not yet cut by the first cross cutting device 6 into individual products, each designated 5. The second cross cutting device 11 is comprised of an acceleration section 16, 17, which can each consist of a driven belt guide system and feeds the signatures 5 to a seven-field collecting cylinder 18, which is equipped with seven known gripper systems 19 on its circumference. Instead of the gripper systems 19, punctures can also be provided if necessary. Immediately after the signature 5 has entered the collecting cylinder 18, e.g. B. a four-field stapling cylinder 21 may be arranged, which means if necessary his stapling heads, which are arranged on the circumference and are not shown, in the alignment of the cross fold to be introduced brings staples and in each case cooperates with an abutment (not shown) on the lateral surface of the collecting cylinder 18. Such a stapling device is described in DE - PS 11 89 562. On the circumference of the collecting cylinder 18, two four-field transfer cylinders 22, each with two known gripper systems 23, are arranged offset from one another. Known tape guidance systems 24, 26 are provided on the circumference of the collecting cylinder 18 between the stapling cylinder 21 and the first transfer cylinder 22 seen in the direction of rotation of the collecting cylinder 18 and between the first transfer cylinder 22 and the second transfer cylinder 22 viewed in the direction of rotation of the collecting cylinder 18. The peripheral speed of the cylinders 18, 22 can be more than 20 m / s. Downstream of the respective transfer cylinder 22 is a six-field gripper and folder knife cylinder 27, each with three gripper systems 28, which are mutually offset by 120 ° and arranged alternately, as well as folder knife systems 29 and a six-field folder cylinder 31, each with three folder systems 32. By arranging a gearbox to be described in more detail later, the running speed of the signatures 5 is reduced by approximately 25% by the transfer from the transfer cylinder 22 to the gripper and folding knife cylinder 27, so that the folded product, also denoted by 5, when the "whip effect" occurs during the folding process between the gripper and folding knife cylinder 27 and the folding jaw cylinder 31, its speed is reduced by about a quarter and thus by about half its mass forces. A known belt guide system 33 is arranged in the product running direction on the circumference of the gripper and folding knife cylinder 27 located between the transfer cylinder 22 and the folding jaw cylinder 31. A paper guide bracket 34 is provided in the direction of production behind the point of contact of the two cylinders 27, 31 with one another (plus product 5) in order also to reduce the effect of the "whip effect". The products 5, which are now provided with a first transverse fold and optionally stapled, are reduced in their running speed via a guide roller 36, 37, subsequently via a deflection roller 38 and a deceleration section consisting of two belt guide systems 39, 41, to a paddle wheel 43, which in turn reduces the Products 5 transferred to a cross fold delivery 44.

Fig. 2 zeigt eine Draufsicht auf einen Antriebsräderzug der Zylinder mit angedeuteten Achszapfen 18c, 22c, 27c, 31c der Zylinder 18, 22, 27, 31. Ein mit einer Hauptantriebswelle 46 verbundenes Kegelradgetriebe 47 ist mit einem Antriebszahnrad 48 kraft- und formschlüssig verbunden. Das Zahnrad 48 kämmt mit einem Zahnrad 18a des Sammelzylinders 18. Das Zahnrad 18a kämmt wiederum mit einem Zahnrad 22a des Überführzylinders 22, welches mit einem kleineren Zahnrad 22b kraft- und formschlüssig verbunden ist. Das Zahnrad 22b kämmt mit einem Zahnrad 27a des Greiferteils des Greifer- und Falzmesserzylinders 27, wobei die Untersetzung zwischen den Zahnrädern 22b, 27a so bemessen ist, daß eine Reduzierung der Umfangsgeschwindigkeit von ca. 25% zwischen den Zylindern 22, 27 erfolgt. Das Zahnrad 27a ist mit dem Zahnrad 27b mittels einer Welle kraft- und formschlüssig verbunden. Das Zahnrad 27b kämmt mit einem Zahnrad 31a des Falzklappenzylinders 31. Die genannten Zahnräder sind jeweils über nicht näher bezeichnete Lager und Wellen in dem Seitengestell 1 kraft- und formschlüssig gehalten. Bei annähernd gleichen Durchmessern der Zylinder 22, 27 und einer Geschwindigkeitsreduzierung des Zylinders 27 gegenüber dem Zylinder 22 auf Grund der genannten Untersetzung ist es möglich, den langsamer laufenden sechsfeldrigen Greifer- und Falzmesserzylinder 27 mit drei Greifersystemen 28 auszustatten gegenüber dem mit zwei Greifersystemen 23 ausgebildeten vierfeldrigen Überführzylinder 22. Der in Fig. 2 gezeigte Antriebsräderzug gilt sinngemäß ebenfalls für den zweiten Produktweg, bestehend aus dem Doppel der Einrichtungen 22, 27 und 31. Die Antriebe für den Heftzylinder 21 sowie für die dem Falzklappenzylinder 31 nachfolgenden Einrichtungen werden der Einfachheit halber nicht berücksichtigt. Das Greifer- und Falzmesserteil des Greifer- und Falzmesserzylinders 27 ist mit einem nicht gezeigten Radsatz und Differential verbunden für die Falzregulierung. Die Zylinder 22, 27 fungieren somit als einstufige Vorrichtung zum Vermindern der Geschwindigkeit von Signaturen 5.Fig. 2 shows a plan view of a drive gear train of the cylinders with indicated axle journals 18c, 22c, 27c, 31c of the cylinders 18, 22, 27, 31. A bevel gear 47 connected to a main drive shaft 46 is connected to a drive gear 48 in a non-positive and positive manner. The gear 48 meshes with a gear 18a of the collecting cylinder 18. The gear 18a in turn meshes with a gear 22a of the transfer cylinder 22, which is non-positively and positively connected to a smaller gear 22b. The gear 22b meshes with a gear 27a of the gripper part of the gripper and folding knife cylinder 27, the reduction between the gears 22b, 27a being such that there is a reduction in the peripheral speed of approximately 25% between the cylinders 22, 27. The gear 27a is non-positively and positively connected to the gear 27b by means of a shaft. The toothed wheel 27b meshes with a toothed wheel 31a of the jaw cylinder 31. The toothed wheels mentioned are each held non-positively and positively by means of bearings and shafts in the side frame 1, which are not specified. With approximately the same diameters of the cylinders 22, 27 and a reduction in the speed of the cylinder 27 compared to the cylinder 22 due to the mentioned reduction, it is possible to equip the slower-running six-field gripper and folding knife cylinder 27 with three gripper systems 28 compared to the four-field system with two gripper systems 23 Transfer cylinder 22. The drive wheel train shown in FIG. 2 also applies analogously to the second product path, consisting of the double of the devices 22, 27 and 31. The drives for the stitching cylinder 21 and for the devices following the jaw cylinder 31 are not taken into account for the sake of simplicity . The gripper and folding knife part of the gripper and folding knife cylinder 27 is with a wheel set and differential, not shown connected for folding regulation. The cylinders 22, 27 thus function as a single-stage device for reducing the speed of signatures 5.

Fig. 3 zeigt eine auf nur die Zylinder reduzierte Seitenansicht eines zweiten Ausführungsbeispieles eines erfindungsgemäßen Falzapparates. Hierbei besteht gegenüber Fig. 1 die Besonderheit, daß zwischen dem vierfeldrigen Überführzylinder 22 und dem sechsfeldrigen Greifer- und Falzmesserzylinder 27 ein weiterer vierfeldriger Überführzylinder 49 zwischengeschaltet ist, der ebenfalls wie der Überführzylinder 22 zwei Greifersysteme 23 aufweist. Durch eine entsprechende weitere Untersetzung nach Fig. 4 zwischen den Zahnrädern 22b und 27a durch das Zwischenschalten der Zahnräder 49a und 49b, die kraft- und formschlüssig miteinander verbunden sind, kann die Reduzierung der Umfangsgeschwindigkeit um ca. 25% zwischen dem Überführzylinder 22 und dem Falzklappenzylinder 31 zweistufig abgebaut werden. Dies betrifft demzufolge auch die Reduzierung der Massenkräfte. Dabei weisen die Zylinder 18, 22, 49, 27, 31 in Fig. 4 angedeutete Achszapfen 18c, 22c, 49c, 27c, 31c auf.3 shows a side view, reduced to the cylinders only, of a second exemplary embodiment of a folder according to the invention. 1, there is the peculiarity that between the four-field transfer cylinder 22 and the six-field gripper and folding knife cylinder 27, another four-field transfer cylinder 49 is interposed, which also has two gripper systems 23 like the transfer cylinder 22. A corresponding further reduction according to FIG. 4 between the gears 22b and 27a by interposing the gears 49a and 49b, which are positively and positively connected to each other, can reduce the peripheral speed by approximately 25% between the transfer cylinder 22 and the jaw cylinder 31 can be dismantled in two stages. As a result, this also applies to the reduction of mass forces. The cylinders 18, 22, 49, 27, 31 have axle journals 18c, 22c, 49c, 27c, 31c indicated in FIG. 4.

Besonders von Vorteil ist diese zweistufige Vorrichtung 22, 49, 27 zum Vermindern der Geschwindigkeit von Signaturen 5 jeweils vor dem Falzklappenzylinder 31 bei Doppelproduktion. Bei mehrfach gesammelter Produktion kann einer der Produktwege über eine Einrichtung 22, 27, 31, 38, 43, 48 durch bekannte Mittel abgeschaltet werden.This two-stage device 22, 49, 27 is particularly advantageous for reducing the speed of signatures 5 in front of the jaw cylinder 31 in the case of double production. If production is collected several times, one of the product paths can be set up via a device 22, 27, 31, 38, 43, 48 can be switched off by known means.

Es ist auch möglich, den Überführzylinder 49 nach Fig. 3 jeweils sechsfeldrig mit drei Greifersystemen und den Greifer- und Falzmesserzylinder 27 jeweils achtfeldrig mit jeweils vier um 90o gegeneinander versetzten und wechselweise angeordneten Greifersystemen sowie Falzmessersystemen auszustatten. Der Überführzylinder 49 sowie der Greifer- und Falzmesserzylinder 27 erbringt dabei jeweils eine Reduzierung der Umfangsgeschwindigkeit von ca. 25%.It is also possible for the threading cylinder 49. 3 each sechsfeldrig 27 each achtfeldrig each having four by 90 ° offset from each other and according to Figure with three gripper systems and folding knife cylinder and the gripper equip alternately arranged gripper systems and Falzmessersystemen. The transfer cylinder 49 and the gripper and folding knife cylinder 27 each bring about a reduction in the peripheral speed of approximately 25%.

TeilelisteParts list

11
SeitengestellSide frame
22nd
PapierbahnPaper web
33rd
SchneidzylinderCutting cylinder
44th
NutenzylinderGroove cylinder
55
Produktproduct
66
Querschneideeinrichtung (3, 4), ersteCross cutting device (3, 4), first
77
ZugwalzenpaarPull roller pair
88th
SchneidzylinderCutting cylinder
99
NutenzylinderGroove cylinder
1010th
--
1111
Querschneideeinrichtung (8, 9), zweiteCross cutting device (8, 9), second
1212th
SchneidmesserleisteCutting knife bar
1313
NutenleisteGroove strip
1414
ZugwalzenpaarPull roller pair
1515
--
1616
BeschleunigungsstreckeAcceleration distance
1717th
BeschleunigungsstreckeAcceleration distance
1818th
SammelzylinderCollecting cylinder
18a18a
Zahnrad (18)Gear (18)
18c18c
Achszapfen (18)Journal (18)
1919th
GreifersystemGripper system
2020th
--
2121
HeftzylinderStitching cylinder
2222
ÜberführzylinderTransfer cylinder
22a22a
Zahnrad (22)Gear (22)
22b22b
Zahnrad (22)Gear (22)
22c22c
Achszapfen (22)Journal (22)
2323
Greifersystem (22)Gripper system (22)
2424th
Bandleitsystem (18)Belt guidance system (18)
2525th
--
2626
Bandleitsystem (18)Belt guidance system (18)
2727
Greifer- und FalzmesserzylinderGripper and folding knife cylinders
27a27a
Zahnrad (27)Gear (27)
27b27b
Zahnrad (27)Gear (27)
27c27c
Achszapfen (31)Journal (31)
2828
Greifersystem (27)Gripper system (27)
2929
Falzmessersystem (27)Folding knife system (27)
3030th
--
3131
FalzklappenzylinderJaw cylinder
31a31a
Zahnrad (31)Gear (31)
31c31c
Achszapfen (31)Journal (31)
3232
Falzklappensystem (31)Folding jaw system (31)
3333
BandleitsystemBelt guidance system
3434
PapierleitbügelPaper guide bar
3535
--
3636
BandleitsystemBelt guidance system
3737
BandleitsystemBelt guidance system
3838
UmlenkwalzeDeflection roller
3939
BandleitsystemBelt guidance system
4040
--
4141
BandleitsystemBelt guidance system
4242
--
4343
SchaufelradPaddle wheel
4444
QuerfalzauslageCross fold delivery
4545
--
4646
HauptantriebswelleMain drive shaft
4747
KegelradgetriebeBevel gear
4848
AntriebszahnradDrive gear
4949
ÜberführzylinderTransfer cylinder
49a49a
Zahnrad (49)Gear (49)
49b49b
Zahnrad (49)Gear (49)
49c49c
Achszapfen (49)Journal (49)
5050
--

Claims (8)

Falzapparat für Rotationsdruckmaschinen mit einer Vorrichtung zur Verminderung der Transportgeschwindkeit von Signaturen auf ihrem Weg von einem Sammelzylinder zu einem Falzklappenzylinder, dadurch gekennzeichnet, daß als Vorrichtung zur Verminderung der Transportgeschwindkeit der Signaturen (5) ein Greifer (28) und Falzmesser (29) aufweisender Greifer- und Falzmesserzylinder (27) vorgesehen ist, wobei der Greifer- und Falzmesserzylinder (27) verglichen mit einem ihm unmittelbar vorgeschalteten Überführzylinder (22; 49) mit niedrigerer Umfangsgeschwindigkeit antreibbar angeordnet ist.Folding apparatus for rotary printing machines with a device for reducing the transport speed of signatures on their way from a collecting cylinder to a folding jaw cylinder, characterized in that a gripper (28) and folding knife (29) having grippers as a device for reducing the transport speed of the signatures (5) and a folding knife cylinder (27) is provided, the gripper and folding knife cylinder (27) being arranged to be drivable at a lower peripheral speed compared to a transfer cylinder (22; 49) directly upstream of it. Falzapparat nach Anspruch 1, dadurch gekennzeichnet, daß dem Greifer- und Falzmesserzylinder (27) unmittelbar vorgeschalteten Überführzylinder (49) ein Überführzylinder (22) vorgeschaltet ist, daß die Umfangsgeschwindigkeit des unmittelbar vorgeschalteten Überführzylinders (49) niedriger ist als die, des ihm vorgeschalteten Überführzylinders (22).Folding apparatus according to claim 1, characterized in that a transfer cylinder (22) is connected upstream of the gripper and folding knife cylinder (27) directly upstream of the transfer cylinder (49) that the peripheral speed of the immediately upstream transfer cylinder (49) is lower than that of the transfer cylinder upstream of it (22). Falzapparat nach den Ansprüchen 1 bis 2, dadurch gekennzeichnet, daß der Überführzylinder (22; 49) vierfeldrig ausgeführt ist und am Umfang zwei diametral angeordnete Greifersysteme (23) aufweist.Folding apparatus according to claims 1 to 2, characterized in that the transfer cylinder (22; 49) is designed with four fields and has two diametrically arranged gripper systems (23) on the circumference. Falzapparat nach den Ansprüchen 1 bis 3, dadurch gekennzeichnet, daß dem Überführungszylinder (22; 49) ein sieben Greifer- (19) oder Punktur-Systeme aufweisender Sammelzylinder (18) vorgeschaltet ist.Folding apparatus according to claims 1 to 3, characterized in that the transfer cylinder (22; 49) has a seven gripper (19) or puncture systems having collecting cylinder (18) is connected upstream. Falzapparat nach den Ansprüchen 1 bis 4, dadurch gekennzeichnet, daß der Greifer- und Falzmesserzylinder (27) mit einem sechsfeldrigen Falzklappenzylinder (31) zusammenwirkt, daß dieser Zylinder (31) drei Falzklappensysteme (32) aufweist.Folding apparatus according to claims 1 to 4, characterized in that the gripper and folding knife cylinder (27) interacts with a six-field folding jaw cylinder (31), that this cylinder (31) has three folding jaw systems (32). Falzapparat nach den Ansprüchen 1 bis 5, dadurch gekennzeichnet, daß der Greifer- und Falzmesserzylinder (27) sechsfeldrig ausgeführt ist und jeweils drei am Umfang um 120o gegeneinander versetzte und wechselweise angeordnete Greifersysteme (28) sowie Falzmessersysteme (29) aufweist.A folder according to claims 1 to 5, characterized in that the gripper and folding-blade cylinder (27) is designed sechsfeldrig and three circumferentially about 120 ° offset from each other and having alternately arranged gripper systems (28) and folding blade (29). Falzapparat nach den Ansprüchen 1 bis 5, dadurch gekennzeichnet, daß der Greifer- und Falzmesserzylinder (27) achtfeldrig ausgeführt ist und jeweils vier am Umfang um 90o gegeneinander versetzte und wechselweise angeordnete Greifersysteme (28) sowie Falzmessersysteme (29) aufweist.A folder according to claims 1 to 5, characterized in that the gripper and folding-blade cylinder (27) is designed achtfeldrig and four circumferentially around 90 ° offset from each other and having alternately arranged gripper systems (28) and folding blade (29). Falzapparat nach den Ansprüchen 1 bis 5 und 5, dadurch gekennzeichnet, daß der Überführzylinder (49) sechsfeldrig mit am Umfang um 120o gegeneinander versetzten Greifersystemen (23) ausgeführt ist.A folder as claimed in any of claims 1 to 5 and 5, that of the transfer cylinder (49) is designed with sechsfeldrig circumferentially about 120 o staggered gripper systems (23).
EP94106299A 1993-04-28 1994-04-22 Folding device for rotary printing machines Expired - Lifetime EP0622322B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4313938A DE4313938A1 (en) 1993-04-28 1993-04-28 Folder for rotary printing machines
DE4313938 1993-04-28

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Publication Number Publication Date
EP0622322A1 true EP0622322A1 (en) 1994-11-02
EP0622322B1 EP0622322B1 (en) 1997-02-19

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EP94106299A Expired - Lifetime EP0622322B1 (en) 1993-04-28 1994-04-22 Folding device for rotary printing machines

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US (1) US5520378A (en)
EP (1) EP0622322B1 (en)
JP (1) JP2589956B2 (en)
DE (3) DE9320408U1 (en)
RU (1) RU2121439C1 (en)

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Also Published As

Publication number Publication date
EP0622322B1 (en) 1997-02-19
JP2589956B2 (en) 1997-03-12
RU2121439C1 (en) 1998-11-10
US5520378A (en) 1996-05-28
JPH06329332A (en) 1994-11-29
RU94015233A (en) 1996-04-27
DE59401816D1 (en) 1997-03-27
DE9320408U1 (en) 1994-06-23
DE4313938A1 (en) 1994-11-03

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