EP0248347A1 - Folder - Google Patents

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Publication number
EP0248347A1
EP0248347A1 EP87107724A EP87107724A EP0248347A1 EP 0248347 A1 EP0248347 A1 EP 0248347A1 EP 87107724 A EP87107724 A EP 87107724A EP 87107724 A EP87107724 A EP 87107724A EP 0248347 A1 EP0248347 A1 EP 0248347A1
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EP
European Patent Office
Prior art keywords
outlet
roller
folding apparatus
transport
folding device
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
EP87107724A
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German (de)
French (fr)
Other versions
EP0248347B1 (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
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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 which is designed as an upset folding device, which has an upstream side compression chess flanked by two outer rolls interacting with a middle roll to form transport gaps and is penetrated by a set of tapes running on the middle roll .
  • outlet-side outer roller can be swiveled out of 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 set of belts 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, and the end positions can expediently be 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.
  • tongues form practically stationary guide devices which prevent the products from escaping in the region 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 under the formation of a belt kink and its belt-side distance from the adjacent outer roller at least that corresponds to the maximum depth of the compression shaft.
  • 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 unit (not shown here) 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 lifting 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 and 10 opposite the input cross-section of the upsetting shaft 5 and a gap forming the upsetting shaft entrance and opposite the middle roller 6 from the two outer rollers 7 and 8 which are circumferentially spaced apart from one another are limited passage window 11 result.
  • 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 runs, 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 deflection rollers of the upper belt sets 12a and 12b, which cooperate 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 upsetting 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 opposite to the transport plane of the belt guide 2 entering the transport gap 9 Entrance-forming passage window 11 inclined upwards.
  • pivoting or displacing 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 open, which is formed by the U-legs, spaced from each other, parallel guide walls extending over the entire machine width and bridging the distance between these guide walls
  • Depth of the upsetting shaft which is therefore adjustable and is also adjustable 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 nip 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 nip 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 belt 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 up position Shoot products P past the stub 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 a transport gap between these two rollers, that is to say the outlet-side transport gap 10 is eliminated, 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 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 under the compression shaft entrance 11 does not undergo a deflection 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 means of a guiding device 20 bridging the distance between the two outer rollers 7, 8 in order to bring about further securing.
  • a guiding device 20 bridging the distance between the two outer rollers 7, 8 in order to bring about further securing.
  • This can simply be designed in the form of a rake which can be releasably fixed to the pivotable end shields 16 and consists of tongues lying next to one another.
  • a deflection roll 21 is provided downstream of the outer roll 8 on the outlet side, which is received on the end plates 16 together with the adjacent outside roll 8 and the upsetting shaft 5 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 tape guide section at least the depth of the compression shaft 5 corresponds to at least the maximum processable format. This ensures that, in the case of an upset fold operation, the products which are folded twice here in the region of the band fold 22 are only deflected when they have already left the upset folding 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 upset folding device 3, which act as deflection rolls. The drive of the rolls of the upset folding device 3 is therefore in operation both in the activated and in the passivated position, so that the drive of the set of belts is also carried out 13 can be derived from this.

Landscapes

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

Abstract

Bei einem Falzapparat mit mindestens einer durch Bandführungen (2 bzw. 4) beaufschlagbaren bzw. entladbaren, als Stauchfalzeinrichtung (3) ausgebildeten Querfalzeinrichtung, die einen eingangsseitig von zwei äußeren, mit einer mittleren Walze (6) unter Bildung von Transportspalten (9 bzw. 10) zusammenwirkenden Walzen (7, 8) flankierten Stauchschacht (5) aufweist und von einem auf der mittleren Walze (6) laufenden Bändersatz (13) durchsetzt ist, läßt sich dadurch eine hohe Vielseitigkeit hinsichtlich der herstellbaren Produkte und der Produktwege erzielen, daß die auslaufseitige äußere Walze (8) unter Aufhebung des auslaufseitigen Transportspalts (10) von der mittleren Walze (6) abschwenkbar und der Stauchschacht (5) mit seinem Eingang über die einlaufseitige Transportebene des über die mittlere Walze (6) laufenden Bändersatzes (13) anhebbar sind.In the case of a folder with at least one transverse folding device which can be acted upon or unloaded by belt guides (2 or 4) and which is designed as an upset folding device (3), said one having two outer rolls on the input side and with a central roll (6) forming transport gaps (9 or 10 ) cooperating rollers (7, 8) flanked compression shaft (5) and interspersed with a set of belts (13) running on the middle roller (6), this makes it possible to achieve a high degree of versatility with regard to the products that can be produced and the product paths, that the outlet side The outer roller (8) can be swiveled out of the middle roller (6) by lifting the outlet-side transport gap (10) and the upsetting shaft (5) can be raised with its entrance via the inlet-side transport level of the belt set (13) running over the middle roller (6).

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 Walze unter Bildung von Trans­portspalten zusammenwirkenden 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 which is designed as an upset folding device, which has an upstream side compression chess flanked by two outer rolls interacting with a middle roll to form transport gaps and is penetrated by a set of tapes running on the middle roll .

Eine Anordnung dieser Art ist in der DE-A 35 20 965 enthalten. Bei dieser bekannten Anordnung ist die Stauch­falzeinrichtung 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, über 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 upsetting device therefore inevitably become a corresponding transverse fold subjected. In the known arrangement, an outlet branch branching off from the band guide acting on a second compression folding device is provided, through which the cross-folded products can be laid out only once. 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 out of 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 set of belts 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 Stellglied bewerkstelligen, wobei die Endstellungen zweckmäßig durch Anschläge gesichert sein können.A particularly simple and quick changeover and thus 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, and the end positions can expediently be 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 verhindern.To increase operational safety and freedom from malfunctions, 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 escaping in the region 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 unt-er 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 under the formation of a belt kink and its belt-side distance from the adjacent outer roller at least that corresponds to the maximum depth of the compression shaft. This ensures that the products in the area of the fold of the ligament, which in itself ensures excellent stabilization, are only deflected when they have already left the upset folding device, which occurs when the upset fold is activated direction has a positive effect on the avoidance of faults.

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 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 unit (not shown here) 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 lifting 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 and 10 opposite the input cross-section of the upsetting shaft 5 and a gap forming the upsetting shaft entrance and opposite the middle roller 6 from the two outer rollers 7 and 8 which are circumferentially spaced apart from one another are limited passage window 11 result. 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 runs, 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 deflection rollers of the upper belt sets 12a and 12b, which cooperate 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 upsetting 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 die 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 Anschlagsteg 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 opposite to the transport plane of the belt guide 2 entering the transport gap 9 Entrance-forming passage window 11 inclined upwards. A further adaptation to the different conditions that arise in the case of 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 open, which is formed by the U-legs, spaced from each other, parallel guide walls extending over the entire machine width and bridging the distance between these guide walls Depth of the upsetting shaft, which is therefore adjustable and is also adjustable over the entire machine width, is formed. In the region of the ends near the rollers, 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 Pʹ 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 nip 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 nip 10, so that the tape guide 4 twice cross-folded products Pʹ 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 belt 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 up position Shoot products P past the stub 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 a transport gap between these two rollers, that is to say the outlet-side transport gap 10 is eliminated, 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 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 under the compression shaft entrance 11 does not undergo a deflection 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 illustrated embodiment, the upsetting shaft Entrance 11 in the passivated position on which FIG. 2 is based can be closed by means of a guiding device 20 bridging the distance between the two outer rollers 7, 8 in order to bring about further securing. This can simply be designed in the form of a rake which can be releasably fixed to the pivotable end shields 16 and consists of tongues lying next to one another.

Zur Gewährleistung eines zuverlässigen Transports der Produkte im Bereich der passivierbaren Stauchfalzeinrich­tung 3 ist hier eine der auslaufseitigen 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.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 outlet side, which is received on the end plates 16 together with the adjacent outside roll 8 and the upsetting shaft 5 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 tape guide section at least the depth of the compression shaft 5 corresponds to at least the maximum processable format. This ensures that, in the case of an upset fold operation, the products which are folded twice here in the region of the band fold 22 are only deflected when they have already left the upset folding 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 Stauchfalzeinrichtung 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 upset folding device 3, which act as deflection rolls. The drive of the rolls of the upset folding device 3 is therefore in operation both in the activated and in the passivated position, so that the drive of the set of belts is also carried out 13 can be derived from this.

Claims (8)

1. Falzapparat mit mindestens einer durch Bandführungen (2 bzw. 4) beaufschlagbaren bzw. entladbaren, als Stauchfalzeinrichtung (3) ausgebildeten Querfalz­einrichtung, die einen eingangsseitig von zwei äuße­ren, mit einer mittleren Walze (6) unter Bildung von Transportspalten (9 bzw. 10) zusammenwirkenden Wal­zen (7, 8) flankierten Stauchschacht (5) aufweist und von einem auf der mittleren Walze (6) laufenden Bändersatz (13) durchsetzt ist, dadurch gekennzeich­net, daß die auslaufseitige äußere Walze (8) unter Aufhebung des auslaufseitigen Transportspalts (10) von der mittleren Walze (6) abschwenkbar und der Stauchschacht (5) mit seinem Eingang über die ein­laufseitige Transportebene des über die mittlere Walze (6) laufenden Bändersatzes (13) anhebbar sind.1. Folding apparatus with at least one transverse folding device which can be acted upon or unloaded by belt guides (2 or 4) and is designed as an upset folding device (3), which has an input side of two outer, with a central roll (6) with the formation of transport gaps (9 or 10 ) interacting rollers (7, 8) flanked compression shaft (5) and is penetrated by a belt set (13) running on the middle roller (6), characterized in that the outlet-side outer roller (8) while lifting the outlet-side transport gap (10 ) can be swung out of the middle roller (6) and the upsetting shaft (5) can be raised with its entrance via the inlet-side transport plane of the belt set (13) running over the middle roller (6). 2. Falzapparat nach Anspruch 1, dadurch gekennzeichnet, daß die auslaufseitige äußere Walze (8) und der Stauch­ schacht (5) auf vorzugsweise um die Achse (15) der einlaufseitigen äußeren Walze (7) schwenkbaren, ge­meinsamen Lagerschilden (16) aufgenommen sind.2. Folding apparatus according to claim 1, characterized in that the outlet-side outer roller (8) and the upsetting shaft (5) on common bearing plates (16) which can be pivoted preferably about the axis (15) of the inlet-side outer roller (7). 3. Falzapparat nach Anspruch 2, dadurch gekennzeichnet, daß die auf den Lagerschilden (16) aufgenommene Bau­gruppe mittels einer vorzugsweise als Zylinder-Kolben­aggregat ausgebildeten Stelleinrichtung (17) vorzugs­weise zwischen Anschlägen (18, 19) verschwenkbar ist.3. Folding apparatus according to claim 2, characterized in that the assembly accommodated on the end shields (16) can preferably be pivoted between stops (18, 19) by means of an adjusting device (17) which is preferably designed as a cylinder-piston unit. 4. Falzapparat nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der auslaufseitigen äuße­ren Walze eine mit ihr verschwenkbare, vorzugsweise gemeinsam hiermit auf den Lagerschilden (16) aufge­nommene Umlenkwalze (21) nachgeordnet ist, die in die auslaufseitige Bandführung (4) unter Bildung eines Bänderknicks (22) eingreift.4. Folding apparatus according to one of the preceding claims, characterized in that the outlet-side outer roller is arranged with a pivotable with it, preferably together with it on the end plates (16) received deflection roller (21), which in the outlet-side band guide (4) to form a Ribbon kinks (22) engages. 5. Falzapparat nach Anspruch 4, dadurch gekennzeichnet, daß der bandführungsseitige Abstand zwischen der Um­lenkwalze (21) und der benachbarten äußeren Walze (8) zumindest der größten Tiefe des Stauchschachts (5) entspricht.5. Folding apparatus according to claim 4, characterized in that the band guide-side distance between the deflecting roller (21) and the adjacent outer roller (8) corresponds at least to the greatest depth of the upsetting shaft (5). 6. Falzapparat nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß zumindest die die auslauf­seitige Bandführung (4) bildenden Bändersätze (12b, 13) über verschwenkbare Ausgleichsrollen (24) laufen.6. Folding apparatus according to one of the preceding claims, characterized in that at least the sets of tapes (12b, 13) forming the outlet-side tape guide (4) run over pivotable compensating rollers (24). 7. Falzapparat nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Eingang des Stauch­schachts (5) bei aufgehobenem auslaßseitigem Transport­ spalt durch eine vorzugsweise an den schwenkbaren La­gerschilden (16) lösbar aufnehmbare, vorzugsweise durch die beiden äußeren Walzen (7, 8) überbrückende Zungen gebildete Leiteinrichtung (20) verschließbar ist.7. Folding apparatus according to one of the preceding claims, characterized in that the entrance of the upsetting shaft (5) when transport on the outlet side is canceled gap can be closed by a guide device (20) which can be detachably received on the pivotable end plates (16) and is preferably formed by tongues bridging the two outer rollers (7, 8). 8. Falzapparat nach einem der vorhergehenden Ansprüche mit zwei Querfalzeinrichtungen, dadurch gekennzeich­net, daß die abschaltbare Stauchfalzeinrichtung (3) die zweite Querfalzeinrichtung bildet.8. Folding apparatus according to one of the preceding claims with two transverse folding devices, characterized in that the upset folding device (3) which can be switched off forms the second transverse folding device.
EP87107724A 1986-06-05 1987-05-27 Folder Expired EP0248347B1 (en)

Applications Claiming Priority (2)

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

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

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JP (1) JP2559590B2 (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

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US4781367A (en) 1988-11-01
JPS62290679A (en) 1987-12-17
DE3760362D1 (en) 1989-08-31
DD261125A1 (en) 1988-10-19
DE3618921A1 (en) 1987-12-10
DE3618921C2 (en) 1988-03-03
EP0248347B1 (en) 1989-07-26
JP2559590B2 (en) 1996-12-04

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