EP0051695B1 - Device for zig-zag folding webs - Google Patents

Device for zig-zag folding webs Download PDF

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Publication number
EP0051695B1
EP0051695B1 EP80201044A EP80201044A EP0051695B1 EP 0051695 B1 EP0051695 B1 EP 0051695B1 EP 80201044 A EP80201044 A EP 80201044A EP 80201044 A EP80201044 A EP 80201044A EP 0051695 B1 EP0051695 B1 EP 0051695B1
Authority
EP
European Patent Office
Prior art keywords
web
guide device
folded
rollers
side walls
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP80201044A
Other languages
German (de)
French (fr)
Other versions
EP0051695A1 (en
Inventor
Hermann Dipl.-Ing. Thomas
Hans Jakob
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.)
Maschinenfabrik Goebel GmbH
Original Assignee
Maschinenfabrik Goebel GmbH
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
Publication date
Application filed by Maschinenfabrik Goebel GmbH filed Critical Maschinenfabrik Goebel GmbH
Priority to EP80201044A priority Critical patent/EP0051695B1/en
Priority to DE8080201044T priority patent/DE3070989D1/en
Priority to US06/318,130 priority patent/US4401428A/en
Priority to JP56175848A priority patent/JPS5950577B2/en
Publication of EP0051695A1 publication Critical patent/EP0051695A1/en
Application granted granted Critical
Publication of EP0051695B1 publication Critical patent/EP0051695B1/en
Expired legal-status Critical Current

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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
    • B65H45/02—Folding limp material without application of pressure to define or form crease lines
    • B65H45/06—Folding webs
    • B65H45/10—Folding webs transversely
    • B65H45/101—Folding webs transversely in combination with laying, i.e. forming a zig-zag pile
    • B65H45/107—Folding webs transversely in combination with laying, i.e. forming a zig-zag pile by means of swinging or reciprocating guide bars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/11—Dimensional aspect of article or web
    • B65H2701/112—Section geometry
    • B65H2701/1123—Folded article or web
    • B65H2701/11231—Fan-folded material or zig-zag or leporello

Definitions

  • the proposed device relates to the zigzag folding of paper, fabric, film, plastic or the like.
  • existing webs with a back and forth swiveling consisting of at least two parts, interconnected by means of a joint, movable relative to each other, made of plates, sheets or the like.
  • Compound channel-like guide device for the web or webs to be folded the last part of the guide device in the running direction of the webs containing a pulling device consisting of revolving rollers for the web or webs to be folded in each case.
  • Devices of the aforementioned type are used on printing presses, in particular form printing presses.
  • the web printed, punched or otherwise processed in these machines is fed to a zigzag folding device and subsequently fed to a zigzag-folded stack or deposited into such a stack.
  • a web can be fed in devices of the type mentioned. It is also possible for a number of tracks lying one above the other to run through the machines mentioned. This is the case, for example, if a form consisting of several pages is to be produced.
  • only one web is referred to in the following even if it is a multi-layer web consisting of several individual webs lying on top of one another.
  • zigzag folders contain a multi-part guide channel for the web, which is used to guide the web back and forth so that it can snap off the perforations incorporated into the web and running transversely to the running direction of the web without the web for example, by "air turbulence.
  • Multi-part guiding devices for the web provide far better guidance of the web to be deposited than single-piece guiding devices.
  • DE-PS 1 070 010 Devices of the aforementioned type are known for example from DE-PS 1 070 010.
  • this device contains traction rollers, which are arranged at the lower end of the pivoting device or guide device for the web, viewed in the direction of travel of the web. With these traction rollers, the web is to be guided tightly through the swivel device in order to ensure that the web runs smoothly through the guide channels.
  • the arrangement of the pull rollers according to DE-PS 1 070 010 results in inertia forces which limit the maximum speed of the folding device in an undesirable manner.
  • inertial forces are generated on the parts of the guide channel that swing back and forth. At high running speeds, these inertial forces take on an order of magnitude that limit the running speed of the printing press and thus that of the web. This limitation can be, for example, such that the machine upstream of the folder must run below its maximum speed because of the downstream folder.
  • Another device is known for example from DE-PS 1 152 301. In the direction of the web to be folded, this device does not only contain pulling rollers at its lower end, but even a double set of these rollers, between which belts are stretched. This device also leads to inertial forces which assume an extent that the performance of the machine upstream of the folding device must be limited in an undesirable manner. Also in this prior publication it is pointed out (in particular column 1, line 19 to 27 and column 1, line 38 to column 2, line 35) that the run-up to the web against the side walls of the guide device can result in disruptions, which can cause the run of the hindered to fold web.
  • a device for zigzag folding of webs of paper or the like in which the lower part of the two-part guide device contains walls which serve to guide the web to be folded.
  • the lower pair of rollers of a pulling device arranged entirely in the upper part of the guide device is arranged in the vicinity of the joint connecting the two parts of the guide device, and there is an opening between the side walls of the lower part of the guide device and the aforementioned pair of rollers.
  • the inertial forces are significantly lower than in the case of a front direction according to DE-PS 1 070010. It has been found, however, that a smooth running of the web in the lower part of the guide device is not guaranteed.
  • the entry angle of the web in the exit-side guide part and the opening width remain unaffected by the pivot position.
  • the pulling device consisting of rollers is arranged in the vicinity of the swivel joint, which connects the last part of the guide device in the running direction with the part in front, at least the side walls of the last part of the guide device in the region of the rotating pulling rollers, at least one opening included and at least the parts of the side walls of the guide device which contact the surfaces of a web to be folded in each case are provided with a profile so that the guide device becomes light and air can be inserted between the side walls and the web to be folded.
  • the exemplary embodiment can be modified in various ways without departing from the framework defined by the basic idea of the invention.
  • the web is bent, for example, at point 2 with the aid of a striker 3 in the area of the transverse perforation and thereby forms a zigzag-shaped stack 4.
  • web 1 passes through a plurality of channel-like guiding devices arranged one behind the other in the running direction of the web, which form the different parts of a paper guiding channel .
  • the movement of these parts is made possible by connecting rods 5 and 6, which in turn are moved by driven eccentrics 7 and 8.
  • the two parts 9 and 10 of the guide device are connected to one another by a hinge 11 and are consequently pivotable relative to one another.
  • the first part 9 of the guide device in the running direction of the web 1 can also be pivoted about a further joint 12, which is located in the frame of the folding device.
  • the second joint 12 is thus stationary, while the first joint 11 is pivoted back and forth by the movement of the connecting rod 5.
  • the channel-like guide device is consequently composed of a total of several parts arranged one behind the other in the running direction of the web 1.
  • the second joint 12 contains a driven shaft 13 which is rotatably mounted in the frame 14 of the machine.
  • a pulley 15 is connected to the shaft 13, via which a belt (not shown) runs, which drives the second pulley 16.
  • the second pulley 16 is connected to a shaft 17, the geometric center of which corresponds to the pivot point of the joint 11.
  • a gear 18 is also connected to the shaft 17, which meshes with further gears 19 and 20.
  • the gears 19 and 20 are in turn connected to pull rollers 21 and 22.
  • the pull rollers 21 and 22 are rotatably mounted in the second and last part 10 of the guide device in the running direction of the web 1.
  • the pulling device for the web 1 consisting of the rollers 21 and 22 comes to lie in the immediate vicinity of the swivel joint 11 connecting the two parts 9 and 10 of the guiding device.
  • This distance 23 can be kept small, for example, by using the highest possible strength materials for the gears 18, 19 and 20.
  • the channel-like guiding device for the web 1 contains side walls 24, 25, 26 and 27, which are at least as wide as the web 1 to be folded. These side walls are connected to corresponding brackets 28 and 29, which are located on the first and on the second part of the guide device. These side walls generally consist of metal sheets which are welded or screwed to a guide channel to be passed through by the guideway 1. According to the present invention, sheets of aluminum or high-quality steel are preferred for this, so that these sheets can be made as light as possible but vibration-resistant. For example, so-called stainless steel can be used for this. These side walls are contacted by the web 1 to be folded when the channel travels and thus come into contact with the web at least temporarily.
  • these side walls In order to further increase the stability of these side walls, ie in order to be able to make the side walls as thin and light as possible, they are provided with a profile, which can consist, for example, of the corrugations 30 and 31. However, a different type of profiling than that shown in the figures is also possible.
  • the side walls are angled in the manner of nozzles, so that nozzles or windows are formed between the side walls of the individual parts of the guide device.
  • the side wall 24 is angled according to the angle ⁇ and the side wall 27 according to the angle ⁇ .
  • the window 32 that extends over the entire width of the web to be folded, for example, allows air to flow into the channel-like parts of the guide device and to slide between the side walls and the web 1 to be folded. This air travels with the web 1.
  • said windows can be prepared as shown in the embodiment in other ways, for example as' abandoning the angled portions of the side walls.
  • connecting rods 5 and 6 as well as the holders for the side walls 24, 25, 26 and 27, can be arranged on both longitudinal edges of the web to be folded. This essentially amounts to a symmetrical addition to the figures.

Description

Die vorgeschlagene Einrichtung bezieht sich auf das Zickzackfalzen von aus Papier, Gewebe, Folie, Kunststoff o.dgl. bestehenden Bahnen mit einer hin- und herschwenkenden, aus mindestens zwei Teilen bestehenden, mittels Gelenk miteinander verbundenen, relativ zueinander beweglichen, aus Platten, Blechen o.dgl. zusammengesetzten kanalartigen Führungsvorrichtung für die zu falzende Bahn oder die zu falzenden Bahnen, wobei der in Laufrichtung der Bahnen letzte Teil der Führungsvorrichtung eine aus umlaufenden Walzen bestehende Zugvorrichtung für die jeweils zu falzende Bahn oder die jeweils zu falzenden Bahnen enthält.The proposed device relates to the zigzag folding of paper, fabric, film, plastic or the like. existing webs with a back and forth swiveling, consisting of at least two parts, interconnected by means of a joint, movable relative to each other, made of plates, sheets or the like. Compound channel-like guide device for the web or webs to be folded, the last part of the guide device in the running direction of the webs containing a pulling device consisting of revolving rollers for the web or webs to be folded in each case.

Einrichtungen der vorgenannten Art werden an Druckmaschinen, insbesondere Formulardruckmaschinen verwendet. Die in diesen Maschinen bedruckte, gestanzte oder anderweitig bearbeitete Bahn wird einer Zickzackfalzeinrichtung und dieser nachfolgend einem zickzackförmig gefalzten Stapel zugeführt oder zu einem solchen Stapel abgelegt. In Einrichtungen der genannten Art kann nicht nur eine Bahn zugeführt werden. Es ist auch möglich, dass mehrere übereinander liegende Bahnen die genannten Maschinen durchlaufen. Dies ist beispielsweise dann der Fall, wenn ein aus mehreren Seiten bestehendes Formular hergestellt werden soll. Um die vorliegende Erfindung möglichst anschaulich zu beschreiben, wird aus Gründen der Vereinfachung im folgenden nur noch von einer Bahn auch dann gesprochen, wenn es sich um eine aus mehreren aufeinander liegenden einzelnen Bahnen bestehende mehrlagige Bahn handelt.Devices of the aforementioned type are used on printing presses, in particular form printing presses. The web printed, punched or otherwise processed in these machines is fed to a zigzag folding device and subsequently fed to a zigzag-folded stack or deposited into such a stack. Not only a web can be fed in devices of the type mentioned. It is also possible for a number of tracks lying one above the other to run through the machines mentioned. This is the case, for example, if a form consisting of several pages is to be produced. In order to describe the present invention as clearly as possible, for reasons of simplification, only one web is referred to in the following even if it is a multi-layer web consisting of several individual webs lying on top of one another.

Zickzackfalzapparate enthalten in vielen Fällen einen aus mehreren Teilen bestehenden Führungskanal für die Bahn, welcher dazu dient, die Bahn hin und her zu führen, damit sie an den in die Bahn eingearbeiteten, quer zur Laufrichtung der Bahn verlaufenden Perforationen abknicken kann, ohne dass die Bahn beispielsweise durch "Luftturbulenzen aufgebauscht wird. Mehrteilige Führungsvorrichtungen für die Bahn erbringen dabei eine weit bessere Führung der abzulegenden Bahn als einteilige Führungsvorrichtungen.In many cases, zigzag folders contain a multi-part guide channel for the web, which is used to guide the web back and forth so that it can snap off the perforations incorporated into the web and running transversely to the running direction of the web without the web for example, by "air turbulence. Multi-part guiding devices for the web provide far better guidance of the web to be deposited than single-piece guiding devices.

Einrichtungen der vorgenannten Art sind beispielsweise aus der DE-PS 1 070 010 bekannt. Diese Einrichtung enthält jedoch Zugwalzen, welche in Laufrichtung der Bahn gesehen am unteren Ende der Schwenkeinrichtung oder Führungseinrichtung für die Bahn angeordnet sind. Mit diesen Zugwalzen soll die Bahn straff durch die Schwenkeinrichtung geführt werden, um einen einwandfreien Lauf der Bahn durch die Führungskanäle zu gewährleisten. Insbesondere die Anordnung der Zugwalzen gemäss der DE-PS 1 070 010 hat Massenkräfte zur Folge, welche die maximale Geschwindigkeit der Falzeinrichtung in unerwünschter Weise begrenzen.Devices of the aforementioned type are known for example from DE-PS 1 070 010. However, this device contains traction rollers, which are arranged at the lower end of the pivoting device or guide device for the web, viewed in the direction of travel of the web. With these traction rollers, the web is to be guided tightly through the swivel device in order to ensure that the web runs smoothly through the guide channels. In particular, the arrangement of the pull rollers according to DE-PS 1 070 010 results in inertia forces which limit the maximum speed of the folding device in an undesirable manner.

Da die Führungsvorrichtungen hin- und hergeschwenkt werden, und da die zu falzende Bahn nicht nur den Falzapparat, sondern auch die dem Falzapparat vorgeschaltete Maschine, beispielsweise die Druckmaschine, möglichst schnell durchlaufen soll, entstehen Trägheitskräfte an den hin- und herschwenkenden Teilen des Führungskanals. Diese Trägheitskräfte nehmen bei hohen Laufgeschwindigkeiten eine Grössenordnung an, die die Laufgeschwindigkeit der Druckmaschine und damit diejenige der Bahn begrenzen. Diese Begrenzung kann beispielsweise derart sein, dass die dem Falzapparat vorgeschaltete Maschine wegen des nachgeschalteten Falzapparates unterhalb ihrer maximalen Geschwindigkeit laufen muss.Since the guiding devices are pivoted back and forth, and since the web to be folded should not only run through the folder, but also the machine upstream of the folder, for example the printing press, as quickly as possible, inertial forces are generated on the parts of the guide channel that swing back and forth. At high running speeds, these inertial forces take on an order of magnitude that limit the running speed of the printing press and thus that of the web. This limitation can be, for example, such that the machine upstream of the folder must run below its maximum speed because of the downstream folder.

Daneben entnimmt der Fachmann der DE-PS 1 070 010 (insbesondere Spalte 1, Zeile 30 bis 50, Spalte 2, Zeile 25 bis 33 und Spalte 5, Zeile 69 bis Spalte 6, Zeile 3), dass bei Falzapparaten der in Rede stehenden Art Probleme entstehen, wenn die in die zu falzende Bahn oder die zu falzenden Bahnen eingearbeiteten Perforationen, welche quer zum Lauf dieser Bahnen verlaufen, durch den Falzapparat hindurchgeführt werden. Insbesondere entstehen Probleme, welche darauf hinauslaufen, dass ein vorzeitiges Abknicken der zu falzenden Bahn vermieden werden muss. Wenn nämlich die Bahn schon innerhalb der sie hin- und herführenden Führungsvorrichtung abknickt, dann kann sie gegen mindestens eine der Seitenwände der Führungsvorrichtung anlaufen, sich hier verfangen und in unerwünschter Weise beschädigt werden. Aus diesem Grund wurde es bisher für nötig erachtet, die Führungsvorrichtung mit Walzen oder Rollen auszustatten, wobei diese Rollen an ihrem extrem unteren Ende angeordnet sein sollten.In addition, the person skilled in the art from DE-PS 1 070 010 (in particular column 1, lines 30 to 50, column 2, lines 25 to 33 and column 5, lines 69 to column 6, line 3) learns that in the case of folders of the type in question Problems arise when the perforations which are worked into the web or webs to be folded and which run transversely to the course of these webs are passed through the folding apparatus. In particular, problems arise which mean that premature kinking of the web to be folded must be avoided. If the web already kinks inside the guiding device guiding it back and forth, then it can run against at least one of the side walls of the guiding device, get caught here and be undesirably damaged. For this reason, it has previously been considered necessary to equip the guide device with rollers or rollers, these rollers being intended to be arranged at their extremely lower end.

Eine andere Einrichtung ist beispielsweise aus der DE-PS 1 152 301 vorbekannt. Diese Einrichtung enthält in Richtung der zu falzenden Bahn gesehen an ihrem unteren Ende nicht allein Zugwalzen, sondern sogar einen doppelten Satz dieser Walzen, zwischen denen Bänder gespannt sind. Auch diese Einrichtung führt zu Trägheitskräften, welche ein Ausmass annehmen, dass die der Falzeinrichtung vorgeschaltete Maschine in ihrer Leistung in unerwünschter Weise begrenzt werden muss. Auch in dieser Vorveröffentlichung wird darauf hingewiesen (insbesondere Spalte 1, Zeile 19 bis 27 und Spalte 1, Zeile 38 bis Spalte 2, Zeile 35), dass das Anlaufen der Bahn gegen die Seitenwände der Führungsvorrichtung Störungen zur Folge haben kann, welches den Lauf der zu falzenden Bahn behindert.Another device is known for example from DE-PS 1 152 301. In the direction of the web to be folded, this device does not only contain pulling rollers at its lower end, but even a double set of these rollers, between which belts are stretched. This device also leads to inertial forces which assume an extent that the performance of the machine upstream of the folding device must be limited in an undesirable manner. Also in this prior publication it is pointed out (in particular column 1, line 19 to 27 and column 1, line 38 to column 2, line 35) that the run-up to the web against the side walls of the guide device can result in disruptions, which can cause the run of the hindered to fold web.

Aus der DE-AS 1 174 607 ist zwar eine Einrichtung zum Zickzackfalzen von Bahnen aus Papier oder dgl. bekannt, bei der der untere Teil der zweiteiligen Führungsvorrichtung Wände enthält, die zur Führung der zu falzenden Bahn dienen. Das untere Walzenpaar einer ganz im oberen Teil der Führungsvorrichtung angeordneten Zugeinrichtung ist in der Nähe des die beiden Teile der Führungsvorrichtung verbindenden Gelenkes angeordnet, und zwischen den Seitenwänden des unteren Teils der Führungsvorrichtung und dem genannten Walzenpaar besteht jeweils eine Öffnung. Auch bei dieser Vorrichtung sind die Massenkräfte wesentlich geringer als bei einer Vorrichtung nach der DE-PS 1 070010. Es hat sich jedoch herausgestellt, dass ein einwandfreier Lauf der Bahn im unteren Teil der Führungsvorrichtung nicht gewährleistet ist. Dies dürfte darauf beruhen, dass je nach der relativen Schwenkstellung des unteren gegenüber dem oberen Teil der Führungsvorrichtung zum einen die Bahn unter wechselnden Winkeln in den unteren Teil eintritt und zum anderen die Breite des jeweiligen Spaltes zwischen den Wänden des unteren Teils der Führungsvorrichtung und dem Walzenpaar sich ändert.From DE-AS 1 174 607 a device for zigzag folding of webs of paper or the like is known, in which the lower part of the two-part guide device contains walls which serve to guide the web to be folded. The lower pair of rollers of a pulling device arranged entirely in the upper part of the guide device is arranged in the vicinity of the joint connecting the two parts of the guide device, and there is an opening between the side walls of the lower part of the guide device and the aforementioned pair of rollers. In this device, too, the inertial forces are significantly lower than in the case of a front direction according to DE-PS 1 070010. It has been found, however, that a smooth running of the web in the lower part of the guide device is not guaranteed. This may be due to the fact that, depending on the relative pivoting position of the lower part relative to the upper part of the guide device, the web enters the lower part at changing angles and, on the other hand, the width of the respective gap between the walls of the lower part of the guide device and the pair of rollers changes.

Im Gegensatz hierzu bleiben bei der erfindungsgemässen Vorrichtung der Eintrittswinkel der Bahn in dem ausgangsseitigen Führungsteil und die Öffnungsbreite von der Schwenkstellung unbeeinflusst.In contrast to this, in the device according to the invention, the entry angle of the web in the exit-side guide part and the opening width remain unaffected by the pivot position.

Es besteht somit die Aufgabe, eine Einrichtung der in Rede stehenden Art zu schaffen, bei der die durch die Hin- und Herbewegung der Führungsvorrichtung hervorgerufenen Trägheits- oder Massenkräfte wesentlich geringer sind als bei vorbekannten Einrichtungen, ohne dass der einwandfreie Lauf der Bahnen darunter leidet.It is therefore the task of creating a device of the type in question, in which the inertial or inertial forces caused by the back and forth movement of the guide device are substantially lower than in previously known devices, without the proper running of the webs suffering as a result.

Diese Aufgabe wird dadurch gelöst, dass die aus Walzen bestehende Zugvorrichtung in der Nähe des Drehgelenkes angeordnet ist, welches das in Laufrichtung letzte Teil der Führungsvorrichtung mit dem davorliegenden Teil verbindet, zumindest die Seitenwände des letzten Teils der Führungsvorrichtung im Bereich der umlaufenden Zugwalzen mindestens eine Öffnung enthalten und mindestens die die Oberflächen einer jeweils zu falzenden Bahn kontaktierenden Teile der Seitenwände der Führungseinrichtung mit Profil versehen sind, damit die Führungsvorrichtung leicht wird und sich Luft zwischen die Seitenwände und die zu falzende Bahn einschieben kann.This object is achieved in that the pulling device consisting of rollers is arranged in the vicinity of the swivel joint, which connects the last part of the guide device in the running direction with the part in front, at least the side walls of the last part of the guide device in the region of the rotating pulling rollers, at least one opening included and at least the parts of the side walls of the guide device which contact the surfaces of a web to be folded in each case are provided with a profile so that the guide device becomes light and air can be inserted between the side walls and the web to be folded.

Aufgrund der vorgeschlagenen Lösung ist es nicht allein möglich, die Arbeitsgeschwindigkeit der Falzeinrichtung, sondern auch die Arbeitsgeschwindigkeit der der Falzeinrichtung vorgeschalteten Maschine, beispielsweise einer Formulardruckmaschine, zu erhöhen. Auf diese Weise wird die Leistung der gesamten Maschine beträchtlich vergrössert.Because of the proposed solution, it is not only possible to increase the working speed of the folding device, but also the working speed of the machine upstream of the folding device, for example a form printing machine. In this way, the performance of the entire machine is considerably increased.

Anhand eines in den beigefügten Figuren schematisch abgebildeten, den Erfindungsgedanken nicht begrenzenden Ausführungsbeispiels wird die vorgeschlagene Einrichtung näher erläutert.The proposed device is explained in more detail with reference to an exemplary embodiment schematically depicted in the attached figures, which does not limit the inventive concept.

Das Ausführungsbeispiel kann in verschiedener Weise abgeändert werden, ohne dass der durch die Grundidee der Erfindung abgesteckte Rahmen verlassen würde.The exemplary embodiment can be modified in various ways without departing from the framework defined by the basic idea of the invention.

In den Figuren sind im vorliegenden Zusammenhang nicht wesentliche Teile der Einrichtung wegen einer übersichtlicheren Darstellungsweise nicht gezeichnet, da sie dem Fachmann hinreichend bekannt sind. In den Figuren sind nur diejenigen Teile gezeigt, die zur näheren Erläuterung der Erfindung und ihrer Vorteile erforderlich sind.In the present context, non-essential parts of the device are not shown in the figures because of a clearer representation, since they are sufficiently known to the person skilled in the art. In the figures, only those parts are shown which are necessary for a more detailed explanation of the invention and its advantages.

Die einzelnen Figuren bedeuten:

  • Fig. 1 Seitenansicht der vorgeschlagenen Einrichtung,
  • Fig. 2 Schnitt entlang der Linie 11/11 in Fig. 1,
  • Fig. 3 vergrösserte Darstellung eines Teiles von Fig. 1, wobei die Teile der Führungsvorrichtung in zueinander gestreckter Lage stehen,
  • Fig. 4 Blick auf einen Teil einer Seitenwand der Führungsvorrichtung,
  • Fig. 5 weiteres Ausführungsbeispiel, analog Fig. 4.
The individual figures mean:
  • 1 side view of the proposed device,
  • 2 section along the line 11/11 in Fig. 1,
  • 3 shows an enlarged representation of a part of FIG. 1, the parts of the guide device being in an extended position with respect to one another,
  • 4 view of part of a side wall of the guide device,
  • 5 another embodiment, analogous to FIG. 4.

Die bereits quer zu ihrer Laufrichtung in bestimmten Abständen mit einer Perforation versehene, aus einer oder mehreren Lagen bestehende Bahn 1 aus Papier, Folie, Gewebe o.dgl. läuft von oben her in den Falzapparat ein. Die Bahn wird beispielsweise an der Stelle 2 mit Hilfe eines Schlägers 3 im Bereich der Querperforation abgeknickt und bildet dadurch einen zickzackförmigen Stapel 4. Zu diesem Zweck durchläuft die Bahn 1 mehrere in Laufrichtung der Bahn hintereinander angeordnete kanalartige Führungsvorrichtungen, welche die verschiedenen Teile eines Papierführungskanals bilden. Die Bewegung dieser Teile wird durch Pleuelstangen 5 und 6 ermöglicht, weiche von angetriebenen Exzentern 7 und 8 ihrerseits bewegt werden. Die beiden Teile 9 und 10 der Führungsvorrichtung sind durch ein Gelenk 11 miteinander verbunden und demzufolge relativ zueinander verschwenkbar. Der in Laufrichtung der Bahn 1 erste Teil 9 der Führungsvorrichtung ist ausserdem um ein weiteres Gelenk 12 verschwenkbar, welches sich in dem Gestell der Falzeinrichtung befindet. Das zweite Gelenk 12 ist somit ortsfest, während das erste Gelenk 11 durch die Bewegung der Pleuelstange 5 hin und her verschwenkt wird. Die kanalartige Führungsvorrichtung ist demzufolge insgesamt aus mehreren in Laufrichtung der Bahn 1 folgenden hintereinander angeordneten Teilen zusammengesetzt.The web 1, which is provided with a perforation and is made up of one or more layers of paper, film, fabric or the like at right intervals, is provided with a perforation at certain intervals. runs into the folder from above. The web is bent, for example, at point 2 with the aid of a striker 3 in the area of the transverse perforation and thereby forms a zigzag-shaped stack 4. For this purpose, web 1 passes through a plurality of channel-like guiding devices arranged one behind the other in the running direction of the web, which form the different parts of a paper guiding channel . The movement of these parts is made possible by connecting rods 5 and 6, which in turn are moved by driven eccentrics 7 and 8. The two parts 9 and 10 of the guide device are connected to one another by a hinge 11 and are consequently pivotable relative to one another. The first part 9 of the guide device in the running direction of the web 1 can also be pivoted about a further joint 12, which is located in the frame of the folding device. The second joint 12 is thus stationary, while the first joint 11 is pivoted back and forth by the movement of the connecting rod 5. The channel-like guide device is consequently composed of a total of several parts arranged one behind the other in the running direction of the web 1.

Das zweite Gelenk 12 enthält eine angetriebene Welle 13, welche in dem Gestell 14 der Maschine drehbar gelagert ist. Mit der Welle 13 ist eine Riemenscheibe 15 verbunden, über welche ein nicht dargestellter Riemen läuft, der die zweite Riemenscheibe 16 antreibt. Die zweite Riemenscheibe 16 ist mit einer Welle 17 verbunden, deren geometrische Mitte dem Drehpunkt des Gelenkes 11 entspricht. Mit der Welle 17 ist ferner ein Zahnrad 18 verbunden, welches in weitere Zahnräder 19 und 20 eingreift. Die Zahnräder 19 und 20 sind ihrerseits mit Zugwalzen 21 und 22 verbunden. Die Zugwalzen 21 und 22 sind in dem in Laufrichtung der Bahn 1 zweiten und letzten Teil 10 der Führungsvorrichtung drehbar gelagert. Zwischen der Drehachse des Gelenkes 11 und den Achsen der Zugwalzen 21 und 22 verbleibt somit ein Abstand 23, welcher möglichst gering sein soll. Damit kommt die aus den Walzen 21 und 22 bestehende Zugvorrichtung für die Bahn 1 in unmittelbare Nähe des die beiden Teile 9 und 10 der Führungsvorrichtung verbindenden Drehgelenkes 11 zu liegen. Dieser Abstand 23 kann beispielsweise dadurch gering gehalten werden, dass möglichst hochfeste Werkstoffe für die Zahnräder 18, 19 und 20 verwendet werden.The second joint 12 contains a driven shaft 13 which is rotatably mounted in the frame 14 of the machine. A pulley 15 is connected to the shaft 13, via which a belt (not shown) runs, which drives the second pulley 16. The second pulley 16 is connected to a shaft 17, the geometric center of which corresponds to the pivot point of the joint 11. A gear 18 is also connected to the shaft 17, which meshes with further gears 19 and 20. The gears 19 and 20 are in turn connected to pull rollers 21 and 22. The pull rollers 21 and 22 are rotatably mounted in the second and last part 10 of the guide device in the running direction of the web 1. A distance 23, which should be as small as possible, thus remains between the axis of rotation of the joint 11 and the axes of the drawing rollers 21 and 22. Thus the pulling device for the web 1 consisting of the rollers 21 and 22 comes to lie in the immediate vicinity of the swivel joint 11 connecting the two parts 9 and 10 of the guiding device. This distance 23 can be kept small, for example, by using the highest possible strength materials for the gears 18, 19 and 20.

Die kanalartige Führungsvorrichtung für die Bahn 1 enthält Seitenwände 24, 25, 26 und 27, welche mindestens so breit sind, wie die zu falzende Bahn 1. Diese Seitenwände sind mit entsprechenden Halterungen 28 und 29, welche sich an dem ersten und an dem zweiten Teil der Führungsvorrichtung befinden, verbunden. Diese Seitenwände bestehen im allgemeinen aus Blechen, welche zu einem von der Führungsbahn 1 zu durchlaufenden Führungskanal verschweisst oder verschraubt werden. Nach der vorliegenden Erfindung werden auch hierfür Bleche aus Aluminium oder hochwertigem Stahl bevorzugt, damit diese Bleche möglichst leicht aber schwingungsfest ausgeführt werden können. Beispielsweise kann hierzu sogenannter Edelstahl verwendet werden. Diese Seitenwände werden beim Hin- und Hergehen des Kanals von der zu falzenden Bahn 1 kontaktiert und geraten somit zumindest zeitweise mit der Bahn in Berührung. Um die Stabilität dieser Seitenwände noch zu erhöhen, d. h. um die Seitenwände möglichst dünn und leicht ausführen zu können, sind sie mit einem Profil versehen, welches beispielsweise aus den Riffelungen 30 und 31 bestehen kann. Es ist aber auch eine andere Art der Profilierung, als in den Figuren dargestellt, möglich.The channel-like guiding device for the web 1 contains side walls 24, 25, 26 and 27, which are at least as wide as the web 1 to be folded. These side walls are connected to corresponding brackets 28 and 29, which are located on the first and on the second part of the guide device. These side walls generally consist of metal sheets which are welded or screwed to a guide channel to be passed through by the guideway 1. According to the present invention, sheets of aluminum or high-quality steel are preferred for this, so that these sheets can be made as light as possible but vibration-resistant. For example, so-called stainless steel can be used for this. These side walls are contacted by the web 1 to be folded when the channel travels and thus come into contact with the web at least temporarily. In order to further increase the stability of these side walls, ie in order to be able to make the side walls as thin and light as possible, they are provided with a profile, which can consist, for example, of the corrugations 30 and 31. However, a different type of profiling than that shown in the figures is also possible.

Im Bereich des zwischen dem ersten und dem zweiten Teil der Führungsvorrichtung gelegenen Gelenkes 11 sind die Seitenwände nach Art von Düsen abgewinkelt, so dass sich zwischen den Seitenwänden der einzelnen Teile der Führungsvorrichtung Düsen oder Fenster bilden. Beispielsweise ist die Seitenwand 24 entsprechend dem Winkel a und die Seitenwand 27 entsprechend dem Winkel ß abgewinkelt. Durch das dadurch beispielsweise über die gesamte Breite der zu falzenden Bahn reichende Fenster 32 kann Luft in die kanalartigen Teile der Führungsvorrichtung einströmen und sich zwischen die Seitenwände und die zu falzende Bahn 1 schieben. Diese Luft wandert mit der Bahn 1 mit. Daneben ist es denkbar, dass die genannten Fenster auch in anderer Weise als im Ausführungsbeispiel dargestellt, hergestellt werden können, beispielsweise unter 'Verzicht auf die Abwinkelungen der Seitenwände.In the area of the joint 11 located between the first and the second part of the guide device, the side walls are angled in the manner of nozzles, so that nozzles or windows are formed between the side walls of the individual parts of the guide device. For example, the side wall 24 is angled according to the angle α and the side wall 27 according to the angle β. The window 32 that extends over the entire width of the web to be folded, for example, allows air to flow into the channel-like parts of the guide device and to slide between the side walls and the web 1 to be folded. This air travels with the web 1. Besides, it is conceivable that said windows can be prepared as shown in the embodiment in other ways, for example as' abandoning the angled portions of the side walls.

Mit Hilfe der vorgeschlagenen Einrichtung ist es möglich, sowohl relativ schwere und dicke als auch relativ leichte und dünne Bahnen 1 zu verarbeiten.With the help of the proposed device, it is possible to process both relatively heavy and thick as well as relatively light and thin webs 1.

Es versteht sich für den Fachmann von selbst, dass die Pleuelstangen 5 und 6, sowie die Halterungen für die Seitenwände 24, 25, 26 und 27 an beiden Längskanten der zu falzenden Bahn angeordnet sein können. Dies läuft im wesentlichen auf eine symmetrische Ergänzung der Figuren hinaus.

Figure imgb0001
Figure imgb0002
 It goes without saying for the person skilled in the art that the connecting rods 5 and 6, as well as the holders for the side walls 24, 25, 26 and 27, can be arranged on both longitudinal edges of the web to be folded. This essentially amounts to a symmetrical addition to the figures.
Figure imgb0001
Figure imgb0002

Claims (1)

  1. Device for the zigzag folding of strips (1) consisting of paper, fabric, foil, plastics or the like, with a backwardly and forwardly pivoting guide device for the strip (1) or strips to be folded, consisting of at least two parts (9, 10) joined to one another by a linkage (11) and movable relative to one another, and composed of plates, sheets or the like, wherein the last part (10) of the guide device in the running direction of the strips includes a traction device for the strip (1) or strips being folded in each case, characterised in that the traction device consisting of rollers (21, 22) is arranged in the vicinity of the rotatable linkage (11), which joins the last part (10) of the guide device in the running direction to the preceding part (9), at least the side walls (26, 27) of the last part (10) of the guide device contain at least opening (32) in the region of the rotating traction rollers (21, 22), and at least the parts of the side walls (24-27) of the guide device contacting the surfaces of a strip (1) to be folded in each case are suitable profiled.
EP80201044A 1980-11-04 1980-11-04 Device for zig-zag folding webs Expired EP0051695B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP80201044A EP0051695B1 (en) 1980-11-04 1980-11-04 Device for zig-zag folding webs
DE8080201044T DE3070989D1 (en) 1980-11-04 1980-11-04 Device for zig-zag folding webs
US06/318,130 US4401428A (en) 1980-11-04 1981-11-04 Zigzag folding apparatus having means for decreasing inertial forces during reciprocation
JP56175848A JPS5950577B2 (en) 1980-11-04 1981-11-04 Device for folding strips in a zigzag pattern

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP80201044A EP0051695B1 (en) 1980-11-04 1980-11-04 Device for zig-zag folding webs

Publications (2)

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EP0051695A1 EP0051695A1 (en) 1982-05-19
EP0051695B1 true EP0051695B1 (en) 1985-08-14

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JP (1) JPS5950577B2 (en)
DE (1) DE3070989D1 (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4622028A (en) * 1980-05-12 1986-11-11 Bunch Jr Ernest B Delivery mechanism for paper sheet processing apparatus
JPS5953200A (en) * 1982-09-20 1984-03-27 宇野　忠男 Quantitative sorting method for zigzag folded paper
US4623136A (en) * 1984-12-28 1986-11-18 Bunch Jr Ernest B Printing press
US4718654A (en) * 1986-02-27 1988-01-12 Paper Converting Machine Company Apparatus and method for separation and delivery of continuous forms
US4828540A (en) * 1987-07-28 1989-05-09 Fordyce Glenn B Folding apparatus with adjustable swing chute
US5084000A (en) * 1987-07-28 1992-01-28 Fordyce Glenn B Folding apparatus with adjustable swing chute
US5123890A (en) * 1990-03-29 1992-06-23 G. Fordyce Company Apparatus and method for separating forms in a stack
US5149075A (en) * 1991-01-15 1992-09-22 Roll Systems, Inc. Apparatus for separating folded web
US5065992A (en) * 1990-06-07 1991-11-19 Roll Systems, Inc. Method for processing web material
DE4023344A1 (en) * 1990-07-23 1992-01-30 Goebel Gmbh Maschf GUIDE CHANNEL
US5087023A (en) * 1990-08-23 1992-02-11 The Standard Register Company Apparatus and method for folding separated forms in a stack
US5558318A (en) * 1991-01-15 1996-09-24 Roll Systems, Inc. Separator for forming discrete stacks of folded web
US5366434A (en) * 1992-11-06 1994-11-22 G. Fordyce Company, Inc. Folding apparatus for narrow paper
US5290226A (en) * 1992-12-23 1994-03-01 G. Fordyce Company, Inc. Method of and apparatus for cutting a web and folding the resulting ribbons
DE4404636B4 (en) * 1993-02-18 2007-02-22 Fuji Xerox Co., Ltd. imaging device
JP2809108B2 (en) * 1994-07-11 1998-10-08 富士通株式会社 Paper folding device
JP2742021B2 (en) * 1994-07-11 1998-04-22 富士通株式会社 Stacker device
EP3984596A4 (en) 2019-06-14 2023-06-21 Kaneka Corporation Cell population including mesenchymal cells, pharmaceutical composition including same, and method for producing same

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1070010B (en) * 1959-11-26
DE1152301B (en) * 1961-11-03 1963-08-01 Spezialmaschinenfabrik Robert Oscillating device for conveying a material web
DE1174607B (en) * 1961-12-20 1964-07-23 Spezialmaschinenfabrik Robert Oscillating device for conveying a material web

Also Published As

Publication number Publication date
JPS5950577B2 (en) 1984-12-08
EP0051695A1 (en) 1982-05-19
JPS57131671A (en) 1982-08-14
US4401428A (en) 1983-08-30
DE3070989D1 (en) 1985-09-19

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