EP0248347B1 - Folder - Google Patents

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Publication number
EP0248347B1
EP0248347B1 EP87107724A EP87107724A EP0248347B1 EP 0248347 B1 EP0248347 B1 EP 0248347B1 EP 87107724 A EP87107724 A EP 87107724A EP 87107724 A EP87107724 A EP 87107724A EP 0248347 B1 EP0248347 B1 EP 0248347B1
Authority
EP
European Patent Office
Prior art keywords
roll
folding device
delivery
buckle
tape
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
EP87107724A
Other languages
German (de)
French (fr)
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EP0248347A1 (en
Inventor
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.)
Albert Frankenthal AG
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Albert Frankenthal 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
Publication date
Application filed by Albert Frankenthal AG filed Critical Albert Frankenthal AG
Publication of EP0248347A1 publication Critical patent/EP0248347A1/en
Application granted granted Critical
Publication of EP0248347B1 publication Critical patent/EP0248347B1/en
Expired legal-status Critical Current

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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
    • B65H45/14—Buckling folders
    • B65H45/142—Pocket-type folders

Definitions

  • the invention relates to a folding apparatus with at least one transverse folding device which can be acted upon and unloaded by tape guides and is designed as a compression folding device, which has a compression chess flanked on the input side by two outer rollers which cooperate with a central fixed roller to form transport gaps and are assigned to the tape guides, and by one on the central one Roller running belt set is enforced.
  • outlet-side outer roller can be swiveled from the middle roller while lifting the outlet-side transport gap and the upsetting shaft can be raised with its entrance via the inlet-side transport plane of the belt set running over the middle roller.
  • the measures ensure that the upsetting device designed in this way can optionally be activated or passivated and, in the passivated state, can be passed through by the products arriving via the belt guide without a folding process.
  • the measures according to the invention therefore advantageously offer the possibility of, for example, laying out cross-folded products only once behind a second cross-folding device.
  • outlet-side outer roller and the compression shaft are accommodated on bearing plates pivotable about the axis of the inlet-side outer roller.
  • the entire assembly can be adjusted in a simple manner by means of an actuator acting on the end shields, the end positions being able to be appropriately secured by stops.
  • the inlet of the compression shaft can be closed when the transport gap on the outlet side is lifted by tongues which can be releasably received on the pivotable end shields and bridging the two outer rollers.
  • These tongues form practically stationary guide devices which prevent the products from dodging in the area between the two outer rollers which are spaced apart from one another.
  • the outer roller on the outlet side is followed by a deflecting roller which can be pivoted with it and is also accommodated on the end shields, which engages in the outlet-side belt guide with the formation of a belt kink and its belt-side distance from the adjacent outer roller at least the maximum depth of the upsetting shaft corresponds.
  • the folding apparatus on which FIGS. 1 and 2 are based consists, in a manner known per se, of a first transverse folding device, which is formed here by a flap folding device 1, and a second transverse folding device connected to it by a band guide 2, which is formed by an upsetting folding device 3.
  • the upset folding device 3 can be connected via a band guide 4 running out of it to a product delivery (not shown here in greater detail) or a further folding device for producing a longitudinal or transverse fold.
  • the once cross-folded products are lifted out of the folding flaps of the flap folding device 1 by lift-outs and introduced into the band guide 2, which is designed here in two parts in order to achieve a delay in the products.
  • the upsetting device 3 consists of a compression shaft 5 which practically forms a dead end for the products P arriving via the belt guide 2 and of three rolls 6, 7, 8 which are driven at the same circumferential speed and which are set against one another in the activated position on which FIG. 1 is based so that which are offset from one another on the circumference of the middle roller 6 by approximately 90 ° , the transport gaps 9 or 10 opposite the input cross section of the upsetting shaft 5 and a middle roller 6 forming the upsetting shaft entrance of the two outer rollers 7 and 8, which are circumferentially spaced from each other, result in limited passage window 11.
  • rollers 6 to 8 are driven so that the transport gap 9 facing the first transverse folding device acts as a feed gap into which the transport plane of the belt guide 2 enters, and that the second transport gap 10 acts as a pull-out gap against which the belt guide 4 connects.
  • the two outer rollers 7, 8 simultaneously form the deflecting rollers of the upper belt sets 12a and 12b, which interact to form the belt guides 2 and 4 with a lower belt set 13, which runs through the middle roller 6 and passes through the compression folding device 3, the two outer ones In the activated position on which FIG. 1 is based, rollers 7, 8 can be adjusted to adapt the clear width of the transport gaps 9, 10 to different product thicknesses compared to the central, stationary roller 6.
  • the compression shaft 5, which is continuous over the entire width of the machine, is inclined upwards relative to the transport plane of the belt guide 2 entering the transport gap 9, starting from the passage window 11 forming its entrance.
  • a further adaptation to the different conditions that result in products of different thickness is possible by pivoting or displacing the upsetting shaft 5.
  • this can simply be accommodated on a pivotable or adjustable crossbar 14.
  • the upsetting shaft 5 results as the interior of a configuration which is approximately U-shaped in longitudinal section towards the middle roller 6 and which is formed by U-shaped, spaced-apart, parallel guide walls extending over the entire machine width and bridging the distance between these guide walls and the depth of the upsetting shaft, which is therefore adjustable and adjustable and also extends over the entire machine width, is formed.
  • the guide walls can be tapered and bent to form a V-shaped inlet and outlet area opening towards the middle roller 6.
  • the upset folding device 3 In the activated position of the upset folding device 3 on which Figure 1 is based, the products P drawn in once through the inlet-side transport gap 9 shoot with their front edge into the upset shaft 5 and are pulled off with the formation of a second transverse fold over the outlet-side transport gap 10, so that the tape guide 4 twice cross-folded products P 'leads.
  • the upset folding device 3 In order to be able to produce cross-folded products only once and to lay them out behind the upset folding device 3 by means of the band guide 4, the upset folding device 3 can be brought into the passivated position on which FIG. 2 is based, in which the once folded products P shoot past the upsetting shaft 5.
  • the outer roller 8 on the outlet side and the upsetting shaft 5 are received on common bearing plates 16 which can be pivoted about the axis 15 of the outer roller 7 on the inlet side and which are pivoted up from the position on which FIG. 1 is based to passivate the upset folding device 3 to the position on which FIG. 2 is based , in which the outlet-side outer roller 8 is lifted so far from the stationary middle roller 6 that there is no longer any transport gap between these two rollers, that is to say the outlet-side transport gap 10 is canceled, and in which the compression shaft 5 is raised so far, that its input 11 is located above the transport plane of the belt guide 2 entering the transport gap 9 on the inlet side.
  • the pivoting position of the pivotable assembly which is accommodated on the end shields 16 is selected in the passive position on which FIG. 2 is based so that the belt set 13 traveling underneath the compression shaft entrance 11 is not deflected in the region of the middle roller 6; H. that the transport plane of the belt guide 2 extends without deflection in the area of the middle roller 6 under the two outer rollers 7, 8.
  • the adjustable assembly can be adjusted by actuators 17 acting on the end shields 16, for example in the form of a cylinder-piston unit or a spindle drive etc.
  • the end positions on which FIGS. 1 and 2 are based can be defined by stops 18 and 19 which cooperate with the end shields 16.
  • the upsetting shaft entrance 11 in the passivated position on which FIG. 2 is based can be closed by a guide device 20 bridging the distance between the two outer rollers 7, 8 in order to accomplish a further securing.
  • This can simply be designed in the form of a rake consisting of tongues lying next to one another and releasably fixable on the pivotable end shields 16.
  • a deflection roll 21 is provided downstream of the outer roll 8 on the outside, which is received together with the adjacent outside roll 8 and the upsetting shaft 5 on the end plates 16 and into which the upsetting device 3 leaving band guide 4 engages to form a band kink 22, by means of which the conveyed products are stabilized.
  • the deflection roller 21 In the passivated position on which FIG. 2 is based, in which the products P, once folded, are to simply pass through the passivated upsetting device 3, is deflected by the deflection roller 21 in cooperation with a downstream stationary deflection roller 23 and the two outer rollers 7, 8 of the upsetting folding device 3 only a comparatively flat ribbon bend is formed.
  • the distance of the deflecting roller 21 from the adjacent outer roller 8 of the upset folding device 3 is chosen so that the length of the through Deflection roller 21 and the adjacent outer roller 8 limited band guide section at least the depth of the upsetting shaft 5 than at least the maximum processable format. This ensures that, in the case of upsetting operation, the products which are folded twice here in the region of the hinge 22 are only deflected when they have already left the upsetting device 3.
  • the set of belts 13 passing through the upset folding device 3 and running on the middle roll 6, as well as the cooperating upper and lower belt sets 12a, 12b on the inlet and outlet sides run over pivotably mounted compensating rollers 24 which, in addition to the gap adjustment, also enable the above-described change in position of the pivotable assembly.
  • the rollers 6, 7, 8 of the upset folding device 3, which are driven at the same speed, can be driven by means of a toothed belt toothed on both sides, which runs via pinions attached to the side of the rollers.
  • the belt sets 12a and 12b receive their drive via the rollers 7, 8 of the edging folding device 3, which act as deflection rolls.
  • the driving of the rolls of the edging folding device 9 3 is therefore in operation both in the activated and in the passivated position, so that the drive of the Volume set 13 can be derived from this.

Landscapes

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

Description

Die Erfindung betrifft einen Falzapparat mit mindestens einer durch Bandführungen beaufschlagbaren und entladbaren, als Stauchfalzeinrichtung ausgebildeten Querfalzeinrichtung, die einen eingangsseitig von zwei äußeren, mit einer mittleren feststehenden Walze unter Bildung von Transportspalten zusammenwirkenden, den Bandführungen zugeordneten Walzen flankierten Stauchschach aufweist und von einem auf der mittleren Walze laufenden Bändersatz durchsetz ist.The invention relates to a folding apparatus with at least one transverse folding device which can be acted upon and unloaded by tape guides and is designed as a compression folding device, which has a compression chess flanked on the input side by two outer rollers which cooperate with a central fixed roller to form transport gaps and are assigned to the tape guides, and by one on the central one Roller running belt set is enforced.

Eine Anordnung dieser Art ist in der DE-A 35 20 965 enthalten. Bei dieser bekannten Anordnung ist die Stauchtalzeinrichtung nicht abschaltbar. Die über die Stauchfalzeinrichtung laufenden Produkte werden daher zwangsläufig auch einer entsprechenden Querfalzung unterzogen. Bei der bekannten Anordnung ist zwar ein von der eine zweite Stauchfalzeinrichtung beaufschlagenden Bandführung abzweigender Auslaufast vorgesehen, Ober den lediglich einmal quergefalzte Produkte ausgelegt werden können. Vielfach ist es jedoch erwünscht, lediglich einmal quergefalzte Produkte im Bereich hinter der zweiten Querfalzeinrichtung auszulegen. Dies ist bei der bekannten Anordnung nicht möglich.An arrangement of this type is contained in DE-A 35 20 965. In this known arrangement, the upsetting device cannot be switched off. The products running over the edging device are therefore also necessarily subjected to a corresponding transverse fold. In the known arrangement, an outlet branch branching off from the band guide acting on a second compression folding device is provided, via which products that are folded only once can be laid out. In many cases, however, it is desirable to lay out cross-folded products only once in the area behind the second cross-folding device. This is not possible with the known arrangement.

Hiervon ausgehend ist es daher die Aufgabe der vorliegenden Erfindung, einen Falzapparat eingangs erwähnter Art zu schaffen, der hinsichtlich der Vielfalt der herstellbaren Produkte und Produktwege eine hohe Vielseitigkeit aufweist.Proceeding from this, it is therefore the object of the present invention to create a folder of the type mentioned at the outset which is highly versatile with regard to the diversity of the products and product routes which can be produced.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die auslaufseitige äußere Walze unter Aufhebung des auslaufseitigen Transportspalts von der mittleren Walze abschwenkbar und der Stauchschacht mit seinem Eingang über die einlaufseitige Transportebene des über die mittlere Walze laufenden Bändersatzes anhebbar sind.This object is achieved in that the outlet-side outer roller can be swiveled from the middle roller while lifting the outlet-side transport gap and the upsetting shaft can be raised with its entrance via the inlet-side transport plane of the belt set running over the middle roller.

Diese Maßnahmen stellen sicher, daß die so ausgebildete Stauchfalzeinrichtung wahlweise aktivierbar bzw. passivierbar ist und im passivierten Zustand von den über die Bandführung ankommenden Produkten ohne Falzvorgang passiert werden kann. Die erfindungsgemäßen Maßnahmen bieten daher in vorteilhafter Weise die Möglichkeit, beispielsweise lediglich einmal quergefalzte Produkte hinter einer zweiten Querfalzeinrichtung auszulegen.These measures ensure that the upsetting device designed in this way can optionally be activated or passivated and, in the passivated state, can be passed through by the products arriving via the belt guide without a folding process. The measures according to the invention therefore advantageously offer the possibility of, for example, laying out cross-folded products only once behind a second cross-folding device.

Eine besonders einfache und schnelle Umstellung und damit eine ausgezeichnete Bedienungsfreundlichkeit lassen sich dabei dadurch erreichen, daß die auslaufseitige äußere Walze und der Stauchschacht auf um die Achse der einlaufseitigen äußeren Walze schwenkbaren Lagerschilden aufgenommen sind. Die Verstellung der gesamten Baugruppe läßt sich dabei auf einfache Weise mittels eines an den Lagerschilden angreifenden Stellgliedbewerkstelligen, wobei die Endstellungen zweckmäßig durch Anschläge gesichert sein können.A particularly simple and quick changeover and thus an excellent ease of use can be achieved in that the outlet-side outer roller and the compression shaft are accommodated on bearing plates pivotable about the axis of the inlet-side outer roller. The entire assembly can be adjusted in a simple manner by means of an actuator acting on the end shields, the end positions being able to be appropriately secured by stops.

Zur Erhöhung der Betriebssicherheit und Störungsfreiheit kann der Eingang des Stauchschachts bei aufgehobenem auslaßseitigem Transportspalt durch vorzugsweise an den schwenkbaren Lagerschilden lösbar aufnehmbare, die beiden äußeren Walzen überbrückenden Zungen verschließbar sein. Diese Zungen bilden praktisch stationäre Leiteinrichtungen, die ein Ausweichen der Produkte im Bereich zwischen den beiden voneinander beabstandeten äußeren Walzen vertlindem.To increase operational safety and freedom from interference, the inlet of the compression shaft can be closed when the transport gap on the outlet side is lifted by tongues which can be releasably received on the pivotable end shields and bridging the two outer rollers. These tongues form practically stationary guide devices which prevent the products from dodging in the area between the two outer rollers which are spaced apart from one another.

Eine weitere vorteilhafte Maßnahme kann darin bestehen, daß der auslaufseitigen äußeren Walze eine mit ihr verschwenkbare, ebenfalls auf den Lagerschilden aufgenommene Umlenkwalze nachgeordnet ist, die in die auslaufseitige Bandführung unter Bildung eines Bänderknicks eingreift und deren bandführungsseitiger Abstand von der benachbarten äußeren Walze zumindest der maximalen Tiefe des Stauchschachts entspricht. Hierdurch wird sichergestellt, daß die Produkte im Bereich des an sich eine ausgezeichnete Stabilisierung gewährleistenden Bänderknicks erst umgelenkt werden, wenn sie die Stauchfalzeinrichtung bereits verlassen haben, was sich bei aktivierter Stauchfalzein richtung positiv auf die Vermeidung von Störungen auswirkt.Another advantageous measure can be that the outer roller on the outlet side is followed by a deflecting roller which can be pivoted with it and is also accommodated on the end shields, which engages in the outlet-side belt guide with the formation of a belt kink and its belt-side distance from the adjacent outer roller at least the maximum depth of the upsetting shaft corresponds. This ensures that the products in the area of the band buckling, which itself ensures excellent stabilization, are only deflected when they have already left the edging device, which has a positive effect on the avoidance of malfunctions when the edging device is activated.

Weitere zweckmäßige Ausgestaltungen und vorteilhafte Weiterbildungen der übergeordneten Maßnahmen ergeben sich aus der nachstehenden Beschreibung eines Ausführungsbeispiels anhand der Zeichnung in Verbindung mit den restlichen Unteransprüchen.Further expedient refinements and advantageous developments of the superordinate measures result from the following description of an exemplary embodiment with reference to the drawing in conjunction with the remaining subclaims.

In der Zeichnung zeigen:

  • Figur 1 eine Seitenansicht eines erfindungsgemäßen Falzapparats mit aktivierter Stauchfalzeinrichtung und
  • Figur 2 die Anordnung gemäß Figur 1 mit passivierter Stauchfalzeinrichtung.
The drawing shows:
  • Figure 1 is a side view of a folder according to the invention with activated upset device and
  • Figure 2 shows the arrangement of Figure 1 with passivated upset device.

Der den Figuren 1 und 2 zugrundeliegende Falzapparat besteht in an sich bekannter Weise aus einer ersten Querfalzeinrichtung, die hier durch eine Klappenfalzeinrichtung 1 gebildet wird, und einer durch eine Bandführung 2 hiermit verbundenen zweiten Querfalzeinrichtung, die durch eine Stauchfalzeinrichtung 3 gebildet wird. Die Stauchfalzeinrichtung 3 kann über eine aus ihr auslaufende Bandführung 4 mit einer hier nicht näher dargestellten Produktauslage oder einer weiteren Falzeinrichtung zur Herstellung eines Längs- oder Querfalzes verbunden sein. Die einmal quergefalzten Produkte werden durch Aushebezungen aus den Falzklappen der Klappenfalzeinrichtung 1 ausgehoben und in die Bandführung 2 eingeleitet, die hier zur Erzielung einer Verzögerung der Produkte in an sich bekannter Weise zweiteilig ausgebildet ist.The folding apparatus on which FIGS. 1 and 2 are based consists, in a manner known per se, of a first transverse folding device, which is formed here by a flap folding device 1, and a second transverse folding device connected to it by a band guide 2, which is formed by an upsetting folding device 3. The upset folding device 3 can be connected via a band guide 4 running out of it to a product delivery (not shown here in greater detail) or a further folding device for producing a longitudinal or transverse fold. The once cross-folded products are lifted out of the folding flaps of the flap folding device 1 by lift-outs and introduced into the band guide 2, which is designed here in two parts in order to achieve a delay in the products.

Die Stauchfalzeinrichtung 3 besteht aus einem praktisch eine Sackgasse für die über die Bandführung 2 ankommenden produkte P bildenden Stauchschacht 5 sowie aus drei mit gleicher Umfangsgeschwindigkeit angetriebenen Walzen 6, 7, 8, die in der der Figur 1 zugrundeliegenden aktivierten Stellung so aneinander angestellt sind, daß sich am Umfang der mittleren Walze 6 um etwa 90° gegeneinander versetzte, dem Eingangsquerschnitt des Stauchschachts 5 gegenüberliegende Transportspalte 9 bzw. 10 und ein den Stauchschachteingang bildendes, der mittleren Walze 6 gegenüberliegendes, von den beiden äußeren Walzen 7 und 8, die umfangsseitig voneinander beabstandet sind, begrenztes Durchtrittsfenster 11 ergeben. Die Walzen 6 bis 8 werden in der aktivierten Stellung so angetrieben, daß der der ersten Querfalzeinrichtung zugewandte Transportspalt 9 als Einzugsspalt wirkt, in den die Transportebene der Bandführung 2 einläuft, und daß der zweite Transportspalt 10 als Auszugsspalt wirkt, an den sich die Bandführung 4 anschließt. Die beiden äußeren Walzen 7, 8 bilden gleichzeitig die Umlenkwalzen der oberen Bändersätze 12a bzw. 12b, die zur Bildung der Bandführungen 2 bzw. 4 mit einem über die mittlere Walze 6 laufenden, die Stauchfalzeinrichtung 3 durchsetzenden, unteren Bändersatz 13 zusammenwirken, Die beiden äußeren Walzen 7, 8 sind in der der Figur 1 zugrundeliegenden aktivierten Stellung zur Anpassung der lichten Weite der Transportspalte 9, 10 an unterschiedliche Produktdicken gegenüber der mittleren, stationär angeordneten Walze 6 verstellbar.The upsetting device 3 consists of a compression shaft 5 which practically forms a dead end for the products P arriving via the belt guide 2 and of three rolls 6, 7, 8 which are driven at the same circumferential speed and which are set against one another in the activated position on which FIG. 1 is based so that which are offset from one another on the circumference of the middle roller 6 by approximately 90 ° , the transport gaps 9 or 10 opposite the input cross section of the upsetting shaft 5 and a middle roller 6 forming the upsetting shaft entrance of the two outer rollers 7 and 8, which are circumferentially spaced from each other, result in limited passage window 11. In the activated position, the rollers 6 to 8 are driven so that the transport gap 9 facing the first transverse folding device acts as a feed gap into which the transport plane of the belt guide 2 enters, and that the second transport gap 10 acts as a pull-out gap against which the belt guide 4 connects. The two outer rollers 7, 8 simultaneously form the deflecting rollers of the upper belt sets 12a and 12b, which interact to form the belt guides 2 and 4 with a lower belt set 13, which runs through the middle roller 6 and passes through the compression folding device 3, the two outer ones In the activated position on which FIG. 1 is based, rollers 7, 8 can be adjusted to adapt the clear width of the transport gaps 9, 10 to different product thicknesses compared to the central, stationary roller 6.

Der über die ganze Maschinenbreite durchgehende Stauchschacht 5 ist gegenüber der in den Transportspalt 9 einlaufenden Transportebene der Bandführung 2 vom seinen Eingang bildenden Durchtrittsfenster 11 ausgehend nach oben geneigt. Eine weitere Anpassung an die bei Produkten unterschiedlicher Dicke sich ergebenden unterschiedlichen Verhältnisse ist durch eine Schwenkung bzw. Versetzung des Stauchschachts 5 möglich. Dieser kann hierzu einfach auf einer schwenkbar bzw. verstellbar angeordneten Traverse 14 aufgenommen sein. Der stauchschacht 5 ergibt sich als Innenraum einer im Längsschnitt etwa U-formigen zur mittleren Walze 6 hin offenen Konfiguration, die durch U-Schenkel bildende, voneinander distanzierte, parallele, über die ganze Maschinenbreite reichende Führungswandungen und einen den Abstand dieser Führungswandungen überbrückenden, die Tiefe des Stauchsschachts begrenzenden und daher verstellbaren, ebenfalls über die ganze Maschinenbreite reichenden Ahschlagsteg gebildet wird. Im bereich der Walzennahem Enden Können die Führungswandungen verjüngt und zur Bildung eines V-förmig zur mittleren Walze 6 hin öffnenden Ein- bzw. Auslaufbereichs aufgebogen.The compression shaft 5, which is continuous over the entire width of the machine, is inclined upwards relative to the transport plane of the belt guide 2 entering the transport gap 9, starting from the passage window 11 forming its entrance. A further adaptation to the different conditions that result in products of different thickness is possible by pivoting or displacing the upsetting shaft 5. For this purpose, this can simply be accommodated on a pivotable or adjustable crossbar 14. The upsetting shaft 5 results as the interior of a configuration which is approximately U-shaped in longitudinal section towards the middle roller 6 and which is formed by U-shaped, spaced-apart, parallel guide walls extending over the entire machine width and bridging the distance between these guide walls and the depth of the upsetting shaft, which is therefore adjustable and adjustable and also extends over the entire machine width, is formed. In the region of the ends near the roller, the guide walls can be tapered and bent to form a V-shaped inlet and outlet area opening towards the middle roller 6.

In der der Figure 1 zugrundeliegenden aktivierten Stellung der Stauchfalzeinrichtung 3 schießen die über den einlaufseitigen Transportspalt 9 eingezogenen, einmal quergefalzten Produkte P mit ihrer Vorderkante in den Stauchschacht 5 ein und werden unter Bildung eines zweiten Querfalzes über den auslaufseitigen Transportspalt 10 abgezogen, so daß die Bandführung 4 zweimal quergefalzte Produkte P' führt. Um lediglich einmal quergefalzte Produkte herstellen und mittels der Bandführung 4 hinter der Stauchfalzeinrichtung 3 auslegen zu können, kann die Stauchfalzeinrichtung 3 in die der Figur 2 zugrundeliegende passivierte Stellung gebracht werden, in der die einmal quergefalzten Produkte P am Stauchschacht 5 vorbeischießen. Hierzu sind die auslaufseitige äußere Walze 8 und der Stauchschacht 5 auf gemeinsamen, um die Achse 15 der einlaufseitigen äußeren Walze 7 schwenkbaren Lagerschilden 16 aufgenommen, die zum Passivieren der Stauchfalzeinrichtung 3 von der der Figur 1 zugrundeliegenden Stellung in die der Figur 2 zugrundeliegende Stellung hochgeschwenkt werden, in der die auslaufseitige äußere Walze 8 von der stationär angeordneten mittleren Walze 6 so weit abgehoben ist, daß sich zwischen diesen beiden Walzen kein Transportspalt mehr ergibt, der auslaufseitige Transportspalt 10 also aufgehoben ist, und in der der Stauchschacht 5 so weit angehoben ist, daß sich sein Eingang 11 oberhalb der in den einlaufseitigen Transportspalt 9 einlaufenden Transportebene der Bandführung 2 befindet.In the activated position of the upset folding device 3 on which Figure 1 is based, the products P drawn in once through the inlet-side transport gap 9 shoot with their front edge into the upset shaft 5 and are pulled off with the formation of a second transverse fold over the outlet-side transport gap 10, so that the tape guide 4 twice cross-folded products P 'leads. In order to be able to produce cross-folded products only once and to lay them out behind the upset folding device 3 by means of the band guide 4, the upset folding device 3 can be brought into the passivated position on which FIG. 2 is based, in which the once folded products P shoot past the upsetting shaft 5. For this purpose, the outer roller 8 on the outlet side and the upsetting shaft 5 are received on common bearing plates 16 which can be pivoted about the axis 15 of the outer roller 7 on the inlet side and which are pivoted up from the position on which FIG. 1 is based to passivate the upset folding device 3 to the position on which FIG. 2 is based , in which the outlet-side outer roller 8 is lifted so far from the stationary middle roller 6 that there is no longer any transport gap between these two rollers, that is to say the outlet-side transport gap 10 is canceled, and in which the compression shaft 5 is raised so far, that its input 11 is located above the transport plane of the belt guide 2 entering the transport gap 9 on the inlet side.

Die Schwenkstellung der auf den Lagerschilden 16 aufgenommenen, verschwenkbaren Baugruppe ist in der der Figur 2 zugrundeliegenden Passivstellung so gewählt, daß der den Stauchschachteingang 11 unterfahrende Bändersatz 13 im Bereich der mittleren Walze 6 keine Umlenkung erfährt, d. h. daß sich die Transportebene der Bandführung 2 ohne Umlenkung im Bereich der mittleren Walze 6 unter den beiden äußeren Walzen 7, 8 hinwegerstreckt. Die Verstellung der verstellbaren Baugruppe kann durch an den Lagerschilden 16 angreifende Stellorgane 17, etwa in Form eines Zylinder-Kolbenaggregats oder eines Spindeltriebs etc. erfolgen. Die den Figuren 1 und 2 zugrundeliegenden Endstellungen können durch Anschläge 18 bzw. 19 definiert sein, die mit den Lagerschilden 16 zusammenwirken.The pivoting position of the pivotable assembly which is accommodated on the end shields 16 is selected in the passive position on which FIG. 2 is based so that the belt set 13 traveling underneath the compression shaft entrance 11 is not deflected in the region of the middle roller 6; H. that the transport plane of the belt guide 2 extends without deflection in the area of the middle roller 6 under the two outer rollers 7, 8. The adjustable assembly can be adjusted by actuators 17 acting on the end shields 16, for example in the form of a cylinder-piston unit or a spindle drive etc. The end positions on which FIGS. 1 and 2 are based can be defined by stops 18 and 19 which cooperate with the end shields 16.

Im dargestellten Ausführungsbeispiel ist der Stauchschacht eingang 11 in der der Figur 2 zugrundeliegenden passivierten Stellung zur Bewerkstelligung einer weiteren Sicherung durch eine den Abstand der beiden äußeren Walzen 7, 8 überbrückende Leiteinrichtung 20 verschließbar. Diese kann einfach in Form eines an den schwenkbaren Lagerschilden 16 lösbar festlegbaren, aus nebeneinanderliegenden Zungen bestehenden Rechen ausgebildet sein.In the exemplary embodiment shown, the upsetting shaft entrance 11 in the passivated position on which FIG. 2 is based can be closed by a guide device 20 bridging the distance between the two outer rollers 7, 8 in order to accomplish a further securing. This can simply be designed in the form of a rake consisting of tongues lying next to one another and releasably fixable on the pivotable end shields 16.

Zur Gewährleistung eines zuverlässigen Transports der Produkte im Bereich der passivierbaren Stauchfalzeinrichtung 3 ist hier eine der ausiaufseitigen äußeren Walze 8 nachgeordnete Umlenkwalze 21 vorgesehen, die zusammen mit der benachbarten äußeren Walze 8 und dem Stauchschacht 5 auf den Lagerschilden 16 aufgenommen ist und die in die die Stauchfalzeinrichtung 3 verlassende Bandführung 4 unter Bildung eines Bänderknicks 22 eingreift, durch den eine Stabilisierung der geförderten Produkte bewerkstelligt wird. In der der Figur 2 zugrundeliegenden, passivierten Stellung, in der die einmal quergefalzten Produkte P die passivierte Stauchfalzeinrichtung 3 einfach durchlaufen sollen, wird durch die Umlenkwalze 21 im Zusammenwirken mit einer nachgeordneten, stationären Umlenkwalze 23 und den beiden äußeren Walzen 7, 8 der Stauchfalzeinrichtung 3 nur noch ein vergleichsweise flacher Bänderknick gebildet. Dieser wird beim Abschwenken der schwenkbaren Baugruppe in die der Figur 1 zugrundeliegende aktivierte Stellung immer schärfer, was einen besonders zuverlässigen Transport ergibt.Der Abstand der Umlenkwalze 21 von der benachbarten äußeren Walze 8 der Stauchfalzeinrichtung 3 ist dabei so gewählt, daß die Länge des durch die Umlenkwalze 21 und die benachbarte äussere Walze 8 begrenzten Bandführungsabschnitts zumindest der Tiefe des Stauchschachts 5 als zumindest dem maximal verarbeitbaren Format, entspricht. Hierdurch ist sichergestellt, daß bei Stauchfalzbetrieb die hier zweimal quergefalzten Produkte im Bereich des Bänderknicks 22 erst umgelenkt werden, wenn sie die Stauchfalzeinrichtung 3 bereits verlassen haben.In order to ensure reliable transport of the products in the region of the passivable upsetting device 3, a deflection roll 21 is provided downstream of the outer roll 8 on the outside, which is received together with the adjacent outside roll 8 and the upsetting shaft 5 on the end plates 16 and into which the upsetting device 3 leaving band guide 4 engages to form a band kink 22, by means of which the conveyed products are stabilized. In the passivated position on which FIG. 2 is based, in which the products P, once folded, are to simply pass through the passivated upsetting device 3, is deflected by the deflection roller 21 in cooperation with a downstream stationary deflection roller 23 and the two outer rollers 7, 8 of the upsetting folding device 3 only a comparatively flat ribbon bend is formed. This becomes ever sharper when the pivotable assembly is swiveled into the activated position on which FIG. 1 is based, which results in particularly reliable transport. The distance of the deflecting roller 21 from the adjacent outer roller 8 of the upset folding device 3 is chosen so that the length of the through Deflection roller 21 and the adjacent outer roller 8 limited band guide section at least the depth of the upsetting shaft 5 than at least the maximum processable format. This ensures that, in the case of upsetting operation, the products which are folded twice here in the region of the hinge 22 are only deflected when they have already left the upsetting device 3.

Der die Stauchfalzeinrichtung 3 durchsetzende, auf der mittleren Walze 6 laufende Bändersatz 13 sowie die hiermit zusammenwirkenden, ein- und auslaufseitigen oberen Bändersätze 12a, 12b laufen über schwenkbar gelagerte Ausgleichswalzen 24, welche neben der Spalteinstellung auch die oben geschilderte Lageveränderung der schwenkbaren Baugruppe ermöglichen. Der Antrieb der mit gleicher Geschwindigkeit angetriebenen Walzen 6, 7, 8 der Stauchfalzeinrichtung 3 kann mittels eines doppelseitig verzahnten Zahnriemens erfolgen, der über seitlich an die Walzen angesetzte Ritzel läuft. Die Bändersätze 12a und 12b erhalten ihren Antrieb über die als Umlenkwalzen wirkenden Walzen 7, 8 der Stauchfalzeinrichtung 3. Der Antrieb der Walzen der Stauchfalzeinrichtun9 3 ist daher sowohl in der aktivierten als auch in der passivierten Stellung in Betrieb, so daß auch der Antrieb des Bändersatzes 13 hiervon abgeleitet sein kann.The set of belts 13 passing through the upset folding device 3 and running on the middle roll 6, as well as the cooperating upper and lower belt sets 12a, 12b on the inlet and outlet sides run over pivotably mounted compensating rollers 24 which, in addition to the gap adjustment, also enable the above-described change in position of the pivotable assembly. The rollers 6, 7, 8 of the upset folding device 3, which are driven at the same speed, can be driven by means of a toothed belt toothed on both sides, which runs via pinions attached to the side of the rollers. The belt sets 12a and 12b receive their drive via the rollers 7, 8 of the edging folding device 3, which act as deflection rolls. The driving of the rolls of the edging folding device 9 3 is therefore in operation both in the activated and in the passivated position, so that the drive of the Volume set 13 can be derived from this.

Claims (8)

1. A folding device comprising at least one transverse folding unit which is supplied and discharged by tape conveyors (2 resp. 4) and is in the form of a buckle folder (3) with a buckle passage (5) flanked by two outer rolls (7 resp. 8), which are coordinated to the tape conveyors (2 resp. 4) and with a stationary center roll (6) with the formation of feed nips (9 resp. 10), such buckle folder having a set of tapes (13) running through it over the center roll (6) characterized in that the outer roll (8) on the delivery side may be pivoted away from the center roll (6) so as to open up and render ineffective the delivery- side feed roll nip (10) and the buckle passage (5) may be shifted so that its inlet is over the inlet-side feed plane of the tape set (13) running over the center roll (6).
2. The folding device as claimed in claim 1 comprising common bear ing elements (16) on which said outer delivery roll (8) and said buckle passage (5) are mounted for pivotal motion thereof, preferably said delivery outer roll (8) and said buckle passage (5) are able to pivot about an axis (15) of said feed outer roll (7).
3. The folding device as claimed in claim 2 wherein said buckle passage (5) and said delivery outer roll (8) form a subassembly, said device further comprising an actuator (17) for pivoting said subassembly arranged on said bearing elements (16) between terminal abutments (18, 19) for defining the end positions, said actuator (17) preferably comprises a piston and cylinder means.
4. The folding device as claimed in anyone of the foregoing claims comprising a bend roll (21) placed downstream, in the direction of product feed, from said delivery outer roll (8) and engaging one of said tape conveyors (4) to form a bend (22) therein, said bend roll (21) being able to be pivoted together with said outer roll (8) and preferably also mounted on said bearing elements (16).
5. The folding device as claimed in claim 4 wherein the distance on the tape conveyor side between the bend roll (21) and the adjacent delivery outer roll (8) is equal to at least the maximum depth of the buckle passage (5).
6. The folding device as claimed in anyone of the foregoing claims comprising pivoting slack-take up rolls (24) over which at least the one of said tape sets (12b, 13) forming the delivery tape conveyor (4) is trained.
7. The folding device as claimed in anyone of the foregoing claims comprising a guide means (20) adapted to shut off said inlet end of said buckle passage (5) when said feed nip on the outlet side of said folder unit is non-operational said guide means (20) is preferably detachably mounted on said bearing elements (16) and comprises fingers to bridge the two outer rolls (7, 8).
8. The folding device as claimed in anyone of the foregoing claims comprising two transverse folding means characterized in that buckle folder (3) being able to be switched off, is the second transverse folding means.
EP87107724A 1986-06-05 1987-05-27 Folder Expired EP0248347B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3618921 1986-06-05
DE19863618921 DE3618921A1 (en) 1986-06-05 1986-06-05 FOLDING APPARATUS

Publications (2)

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EP0248347A1 EP0248347A1 (en) 1987-12-09
EP0248347B1 true EP0248347B1 (en) 1989-07-26

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EP87107724A Expired EP0248347B1 (en) 1986-06-05 1987-05-27 Folder

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US (1) US4781367A (en)
EP (1) EP0248347B1 (en)
JP (1) JP2559590B2 (en)
DD (1) DD261125A1 (en)
DE (2) DE3618921A1 (en)

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US5769774A (en) * 1996-04-22 1998-06-23 Pitney Bowes Inc. Folder with recycling feed path
US6247691B1 (en) 2000-04-10 2001-06-19 Bell & Howell Mail & Messaging Technologies Company Positive drive mechanism for buckle folder and method

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Also Published As

Publication number Publication date
EP0248347A1 (en) 1987-12-09
JPS62290679A (en) 1987-12-17
JP2559590B2 (en) 1996-12-04
DD261125A1 (en) 1988-10-19
DE3618921A1 (en) 1987-12-10
US4781367A (en) 1988-11-01
DE3760362D1 (en) 1989-08-31
DE3618921C2 (en) 1988-03-03

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