EP0113403B1 - Folding machine - Google Patents

Folding machine Download PDF

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Publication number
EP0113403B1
EP0113403B1 EP83110866A EP83110866A EP0113403B1 EP 0113403 B1 EP0113403 B1 EP 0113403B1 EP 83110866 A EP83110866 A EP 83110866A EP 83110866 A EP83110866 A EP 83110866A EP 0113403 B1 EP0113403 B1 EP 0113403B1
Authority
EP
European Patent Office
Prior art keywords
conveying
conveying device
folding
folded
deflection guide
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
EP83110866A
Other languages
German (de)
French (fr)
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EP0113403A1 (en
Inventor
Johann Lindenmueller
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.)
Bell and Howell Co
Original Assignee
Ascom Autelca AG
Autelca 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 Ascom Autelca AG, Autelca AG filed Critical Ascom Autelca AG
Publication of EP0113403A1 publication Critical patent/EP0113403A1/en
Application granted granted Critical
Publication of EP0113403B1 publication Critical patent/EP0113403B1/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
    • B65H45/12—Folding articles or webs with application of pressure to define or form crease lines
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S493/00—Manufacturing container or tube from paper; or other manufacturing from a sheet or web
    • Y10S493/916—Pliable container
    • Y10S493/917—Envelope

Definitions

  • the invention relates to a folding machine according to the preamble of claim 1.
  • a folding machine of this type is known from US-A-3 831 927.
  • the folded material is guided through a first conveyor device consisting of two pairs of rollers into a beak-shaped deflection guide which can be swiveled back and forth between two positions.
  • the deflection guide guides the folded material emerging from the first conveying device to a pair of rollers of a second conveying device, in the second position it guides the folded material to a pair of folding rollers.
  • the conveying paths of the second conveying device and the pair of folding rollers are aligned with one another and the guide direction of the deflecting guide runs in the first position at an obtuse angle to the conveying path of the second conveying device and in the second position at an obtuse angle to the conveying path of the folding roller pair, so that the folded material bends from its guiding direction when it exits the deflecting guide must be able to penetrate into the respective nip.
  • the roller of the respective pair of rollers facing away from the deflection guide is made larger than the facing roller, so that it takes the part of the folded material that hits it into the roller gap.
  • the folded material is first conveyed from the first into the second conveying device when the deflection guide is in the first position, until the point to be folded lies at the exit of the deflection guide. Now the deflection guide is pivoted into the second position and the conveying direction of the second conveying device is reversed. The part of the folded material lying at the exit of the deflection guide is then drawn into the folding nip to form the fold.
  • the known machine has the disadvantage that folded material with inflexible components, e.g. Staples, credit cards, sample parts, etc. cannot be processed. Because the folded material must be bent over its entire length each time it leaves the deflection guide, so that unbending components cannot run through the machine.
  • folded material with inflexible components e.g. Staples, credit cards, sample parts, etc.
  • a folding machine of a different type, with which folding material with rigid components can also be folded is known from EP-A-0 059 357.
  • the material to be folded is inserted into a flat cassette in the place of the fold to be formed, and the cassette is rotated about an axis perpendicular to the direction of insertion.
  • a pressure roller temporarily presses this part of the good against the edge of the cassette where it was inserted, thereby folding the good over this edge at this point.
  • the folded material is then taken up by a pair of folding rollers with the apex of the folding first.
  • the turning direction during folding can be reversed by reversing the direction of rotation of the cassette, the location of the folded material to be folded can be selected through the feed path of the material, and the part of the material taken up by the cassette can contain inflexible components without this interfering with the folding process.
  • the cassette of this known folding machine has to be equipped with conveyor rollers which are driven in one direction to receive the folded material, stand still during the rotation of the cassette and have to be driven after the rotation in the opposite direction in order to convey the folded material to the folding roller pair.
  • the drive that rotates the cassette must work very precisely so that the cassette is aligned with the feed direction and when the folded goods are passed on to the pair of folding rollers with the folding roller nip plane, because this is a prerequisite for the part of the temporarily remaining in the cassette Folded goods are always conveyed at their level, which is why they can contain inflexible parts.
  • a folding machine of a different type which also makes it possible to fold folded material with rigid components, is also known from US-A-2,354,251.
  • the front part of the folding material fed on conveyor belts is lifted off the conveyor path by bending springs in front of the folding point. It then slides upwards on a guide wall perpendicular to the conveyor track until it strikes a stop arranged thereon.
  • the front folded part is compressed, whereupon the compressed and the rear part run into the gap between a folding roller and the conveyor belts.
  • the material to be folded must be grooved along the line to be folded before it is inserted into the folding machine so that the material is folded at the desired location. Otherwise, the location of the fold line depends on how the folded material bends during compression. In the case of thin, slightly flexible material to be folded, there is also the risk that the front part of the material to be folded will become warped and crumpled, and that the bending stress of the compressed, front part of the material to be folded will not be sufficient to overcome the force of the bending springs. In this case, there is no folding at all, since the rear part of the material to be folded is also lifted off the conveyor track by the spiral springs.
  • the invention has for its object to provide a simple, a perfect folding of the good at a freely selectable point only by controlling the drive machine of the type mentioned, which can also process folded goods with inflexible components.
  • the Deflection guide deflects the folded material only in its first position and in its second position clears the way for the material to continue in a straight line from the end of the conveying path of the first conveying device to the folding nip, inflexible components such as staples, credit cards, samples, etc. attached to the rear part of the folded material. walk straight through the machine unimpeded.
  • the development of the invention according to claim 2 makes it possible to reverse the direction of turning when folding by changing the control.
  • the subject of claim 3 is an expedient embodiment of the deflection guide or guides and the folding roller pair of the machine.
  • the folding station shown in FIG. 1 can be the only folding station of a machine for simple folding (FIG. 2) or the first or the second station of a machine for producing Z-folds (FIG. 3) or roller folds (FIG. 4) .
  • the construction is the same, apart from a possibly necessary consideration of the thickness of the folded goods, which is half as large when producing a second fold as when producing a first.
  • the only differences are the respective conveyor sections depending on the size of the folded goods and the type of fold and the directions of rotation depending on the type of fold.
  • the straight conveying path of a first folded material conveying device 1 is directed onto the nip 6 of a pre-folding roller pair 7, 8. Accordingly, the conveying path of this first conveying device 1 lies in the common tangential plane of the pre-folding rollers 7 and 8.
  • This first conveying device 1 conveys in the direction 9.
  • the conveying path of a second folded material conveying device 11 which has conveying rollers 12 and 13 and guide walls 14 and 15, runs at an acute angle to the conveying path of the first conveying device 1, so that these two conveying paths converge towards the roller gap 6.
  • the conveying direction of the second conveying device 11 is reversible (conveying directions 16 and 17).
  • a deflection guide 20 assigned to the two conveying paths is arranged in an apex region of the acute angle, to which the conveying devices 1 and 11 or paths extend. This is about an axis 21 in the drawn-out operative position in which it deflects the folded material from the end of the conveying path of the first conveying device 1 to the conveying path of the second conveying device 11, and in an inactive inoperative rest position 20 ', shown in broken lines, in which it defines the space between the folding roller pair 7, 8 and the conveying paths of the conveying devices 1 and 11, that is to say the apex region mentioned, are movable. So that this space, in which the folded material is not guided in the rest position 20 'of the deflection guide (FIG.
  • the deflection guide is small and the deflection guide can still be pivoted out of this space, it consists of several guide brackets in the embodiment shown, and the folding roller 8 has circumferential grooves into which one of the brackets projects into the rest position 20 'of the deflection guide shown in dash-dotted lines.
  • the inner boundary of these grooves is designated 22. Since, due to these circumferential grooves, a continuously sharp fold is not formed by the pair of folding rollers 7 and 8, the same acts as a pair of folding rollers, and a pair of folding rollers 23, 24 is provided, the roller gap 25 of which, like the roller gap 6 of the pair of folding rollers 7 and 8, is in the conveying plane of the first Conveyor 1 is located.
  • the funding directions of the third Conveyor 29 are designated 34 and 35.
  • the first and third conveying devices 1 and 29 are assigned a second deflecting guide 38 which can be pivoted about an axis 39 and is only shown in its rest position 38 'in FIG. 1, in which their brackets protrude into circumferential grooves of the pre-folding roller 7, the inner boundary of which is designated by 40.
  • first and second conveying devices 1 and 11 and the deflection guide 20 assigned to them are used.
  • the first and third conveyor devices 1 and 29 and the deflection guide 38 assigned to them are used for turning upwards.
  • the second or third conveying device 11 or 29 and the deflection guide 20 or 38 is therefore superfluous if it is always to be turned in the same direction (up or down).
  • the folded material 43, 44 consisting of one or more sheets lying one above the other is fed to the first conveying device 1 (FIG. 5). If the part 43 of the folded material preceding in the conveying direction 9 is to be turned downwards for folding, the deflection guide 20 is initially in its operative position, the deflection guide 38, if present, is in its rest position 38 '(FIG. 1). The deflection guide 20 directs the front part 43 of the folded material into the second conveying device 11, the conveying rollers 12 and 13 of which grip it and convey it in the direction 16 (FIG. 6). When the point A to be folded has reached a certain position on the deflection guide 20 (FIG.
  • the deflection guide 20 is pivoted into its rest position 20 ′ and the previous conveying direction 16 of the second conveying device 11 is reversed (direction 17 FIG. 8).
  • the reversal of direction is shown in FIG. 7 (likewise in FIG. 11 and correspondingly in FIG. 9) by a broken arrow whose tip points in the new direction.
  • the conveying device 1 can be equipped with a light barrier which is adjustable along its conveying path (not shown) and which responds to the rear end of the folded part 44 in the conveying direction 9 and thereby triggers the reversal of the conveying direction. After a trial fold, its position must be corrected according to the distance of the trial fold from the desired fold.
  • the two conveying devices 1 and 11 now convey the folded goods 43, 44 with the point bent by the deflection first, namely the folded goods part 44 in the direction 9 and the folded goods part 43 in the direction 17, whereupon a first, as mentioned, between the folding rollers 7 and 8 , discontinuous fold is formed at point A and is then completed in the pair of folding rollers 23 and 24 (Fig. 8).
  • the unturned part 44 of the folding material always remains level when it passes through the entire folding station, so it can contain inflexible components, e.g. Contain paper clips or a credit card without damaging it or disturbing the folding process.
  • the processes for producing the first fold 8 or D of a Z or roll fold are those described in connection with FIGS. 1, 2 and 5 to 8 for the fold at point A, with which The difference is that the folded material is not folded, as is the case with single folding, the rule in the middle (A), but between the first and second thirds 47 and 48 (FIGS. 3 and 9) or 52 and 53 (FIGS. 4 and 11) .
  • the conveying device 1 is driven further in the direction 9 and the conveying device 11 with the opposite conveying direction 17, so that the material is now ahead with the point previously curved on the deflection guide 20 by the position of the deflection guide in the rest position 20' released space between the pre-folding rollers 7 and 8 conveyed at location E and then rebated by the pair of refolding rollers 23 24 (FIG. 12).
  • the part 49 or 54 of the folded material always remains flat and always in the same plane, so that, as mentioned, it contains inflexible components such as e.g. Staples or a credit card.

Landscapes

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

Description

Die Erfindung betrifft eine Falzmaschine gemäss den Oberbegriff des Patentanspruchs 1.The invention relates to a folding machine according to the preamble of claim 1.

Eine Falzmaschine dieser Art ist aus der US-A-3 831 927 bekannt. Bei dieser wird das Falzgut durch eine aus zwei Walzenpaaren bestehende, erste Fördervorrichtung in eine schnabelförmige Umlenkführung geführt, die zweischen zwei Stellungen hin- und herschwenkbar ist. In der ersten Stellung führt die Umlenkführung das aus der ersten Fördervorrichtung austretende Falzgut zu einem Walzenpaar einer zweiten Fördervorrichtung, in der zweiten Stellung führt sie das Falzgut zu einem Falzwalzenpaar. Die Förderwege der zweiten Fördervorrichtung und des Falzwalzenpaares fluchten miteinander und die Führungsrichtung der Umlenkführung verläuft in der ersten Stellung stumpfwinklig zum Förderweg der zweiten Fördervorrichtung und in der zweiten Stellung stumpfwinklig zum Förderweg des Falzwalzenpaares, so dass das Falzgut beim Austreten aus der Umlenkführung von deren Führungsrichtung abgebogen werden muss, um in den jeweiligen Walzenspalt eindringen zu können. Dazu ist die der Umlenkführung abgewandte Walze des jeweiligen Walzenpaares grösser als die zugewandte Walze ausgebildet, so dass sie den auf sie auftreffenden Falzgutteil in den Walzenspalt mitninmt. Das Falzgut wird zunächst bei in der ersten Stellung befindlicher Umlenkführung von der ersten in die zweite Fördervorrichtung gefördert, bis die zu falzende Stelle am Ausgang der Umlenkführung liegt. Nun wird die Umlenkführung in die zweite Stellung geschwenkt und die Förderrichtung der zweiten Fördervorrichtung umgekehrt. Der am Ausgang der Umlenkführung liegende Teil des Falzguts wird dann unter Bildung des Falzes in den Falzwalzenspalt gezogen.A folding machine of this type is known from US-A-3 831 927. In this case, the folded material is guided through a first conveyor device consisting of two pairs of rollers into a beak-shaped deflection guide which can be swiveled back and forth between two positions. In the first position, the deflection guide guides the folded material emerging from the first conveying device to a pair of rollers of a second conveying device, in the second position it guides the folded material to a pair of folding rollers. The conveying paths of the second conveying device and the pair of folding rollers are aligned with one another and the guide direction of the deflecting guide runs in the first position at an obtuse angle to the conveying path of the second conveying device and in the second position at an obtuse angle to the conveying path of the folding roller pair, so that the folded material bends from its guiding direction when it exits the deflecting guide must be able to penetrate into the respective nip. For this purpose, the roller of the respective pair of rollers facing away from the deflection guide is made larger than the facing roller, so that it takes the part of the folded material that hits it into the roller gap. The folded material is first conveyed from the first into the second conveying device when the deflection guide is in the first position, until the point to be folded lies at the exit of the deflection guide. Now the deflection guide is pivoted into the second position and the conveying direction of the second conveying device is reversed. The part of the folded material lying at the exit of the deflection guide is then drawn into the folding nip to form the fold.

Die bekannte Maschine hat den Nachteil, dass Falzgut mit unbiegsamen Bestandteilen, z.B. Heftklammern, Kreditkarten, Musterteilen usw. nicht verarbeitet werden kann. Denn das Falzgut muss über seine ganze Länge jeweils beim Verlassen der Umlenkführung gebogen werden, so dass unbiegsane Bestandteile nicht durch die Maschine laufen können.The known machine has the disadvantage that folded material with inflexible components, e.g. Staples, credit cards, sample parts, etc. cannot be processed. Because the folded material must be bent over its entire length each time it leaves the deflection guide, so that unbending components cannot run through the machine.

Eine Falzmaschine anderer Art, mit der auch Falzgut mit unbiegsamen Bestandteilen gefalzt werden kann, ist aus der EP-A-0 059 357 bekannt. Bei dieser Maschine wird das Falzgut bis an die Stelle des zu bildenden Falzes in eine flache Kassette eingeführt und die Kassette wird um eine zur Einführrichtung rechtwinklige Achse gedreht. Dabei presst eine Andruckwalze diese Stelle des Gutes vorubergehend an den Kassettenrand, an dem es eingeführt wurde, und faltet das Gut dadurch an dieser Stelle über diesen Rand. Anschliessend wird das so gefaltete Gut mit dem Scheitel der Faltung voran von einem Falzwalzenpaar übernommen. Dabei ist die Wenderichtung beim Falzen durch Umkehr der Drehrichtung der Kassette umkehrbar, die zu falzende Stelle des Falzgutes durch die Vorschubstrecke des Gutes wahlbar, und der von der Kassette aufgenommene Teil des Gutes kann unbiegsame Bestandteile enthalten, ohne dass dies den Falzvorgang stört.A folding machine of a different type, with which folding material with rigid components can also be folded, is known from EP-A-0 059 357. In this machine, the material to be folded is inserted into a flat cassette in the place of the fold to be formed, and the cassette is rotated about an axis perpendicular to the direction of insertion. A pressure roller temporarily presses this part of the good against the edge of the cassette where it was inserted, thereby folding the good over this edge at this point. The folded material is then taken up by a pair of folding rollers with the apex of the folding first. The turning direction during folding can be reversed by reversing the direction of rotation of the cassette, the location of the folded material to be folded can be selected through the feed path of the material, and the part of the material taken up by the cassette can contain inflexible components without this interfering with the folding process.

Die Kassette dieser bekannten Falzmaschine muss mit Förderwalzen ausgerüstet sein, die zur Aufnahme des Falzgutes in einer Richtung angetrieben, während der Drehung der Kassette stillstehen und nach der Drehung in der entgegengesetzten Richtung angetrieben werden müssen, um das Falzgut zum Falzwalzenpaar zu fördern. Dies erfordert ein aufwendiges Getriebe. Der die Kassette drehende Antrieb muss sehr genau arbeiten, damit die Kassette zur Aufnahme des Falzgutes mit dessen Zufuhrrichtung und bei der Weitergabe des gefalteten Gutes an das Falzwalzenpaar mit der Falzwalzenspaltebene fluchtet, denn dies ist Voraussetzung dafür, dass der vorübergehend in der Kassette verbleibende Teil des Falzgutes immer in seiner Ebene gefördert wird, weshalb er unbiegsame Teile enthalten kann.The cassette of this known folding machine has to be equipped with conveyor rollers which are driven in one direction to receive the folded material, stand still during the rotation of the cassette and have to be driven after the rotation in the opposite direction in order to convey the folded material to the folding roller pair. This requires a complex gear. The drive that rotates the cassette must work very precisely so that the cassette is aligned with the feed direction and when the folded goods are passed on to the pair of folding rollers with the folding roller nip plane, because this is a prerequisite for the part of the temporarily remaining in the cassette Folded goods are always conveyed at their level, which is why they can contain inflexible parts.

Eine Falzmaschine anderer Art, die es auch ermöglicht Falzgut mit unbiegsamen Bestandteilen zu falzen, ist ferner aus der US-A-2 354 251 bekannt. Bei der nach dem Prinzip der Stauchfalzung arbeitenden Maschine wird der vordere Teil des auf Förderbändern zugeführten Falzgutes vor der Falzstelle durch Biegefedern von der Förderbahn abgehoben. Er rutscht dann an einer zur Förderbahn senkrechten Führungswand nach oben, bis er an einem an dieser angeordneten Anschlag anschlägt. Bei der Weiterförderung des hinteren Falzgutteils wird der vordere Falzgutteil gestaucht, worauf der gestauchte und der hintere Teil in den Falzspalt zwischen einer Falzwalze und den Förderbändern laufen.A folding machine of a different type, which also makes it possible to fold folded material with rigid components, is also known from US-A-2,354,251. In the case of the machine, which works according to the principle of upsetting, the front part of the folding material fed on conveyor belts is lifted off the conveyor path by bending springs in front of the folding point. It then slides upwards on a guide wall perpendicular to the conveyor track until it strikes a stop arranged thereon. When the rear folded part is conveyed further, the front folded part is compressed, whereupon the compressed and the rear part run into the gap between a folding roller and the conveyor belts.

Bei dieser Maschine muss das Falzgut vor dem Einführen in die Falzmaschine längs der zu falzenden Linie gerillt werden, damit das Gut an der gewünschten Stelle gefalzt wird. Andernfalls hängt der Ort der Falzlinie davon ab, wie sich das Falzgut beim Stauchen biegt. Bei dünnem, leicht biegsamen Falzgut besteht ausserdem die Gefahr, dass sich der vordere Falzgutteil beim Stauchen verwirft und zerknittert wird, und dass die Biegespannung des gestauchten, vorderen Falzgutteils nicht dazu ausreicht, um die Kraft der Biegefedern zu überwinden. In diesem Fall erfolgt überhaupt keine Falzung, da auch der hintere Falzgutteil durch die Biegefedern von der Förderbahn abgehoben wird.With this machine, the material to be folded must be grooved along the line to be folded before it is inserted into the folding machine so that the material is folded at the desired location. Otherwise, the location of the fold line depends on how the folded material bends during compression. In the case of thin, slightly flexible material to be folded, there is also the risk that the front part of the material to be folded will become warped and crumpled, and that the bending stress of the compressed, front part of the material to be folded will not be sufficient to overcome the force of the bending springs. In this case, there is no folding at all, since the rear part of the material to be folded is also lifted off the conveyor track by the spiral springs.

Der Erfindung liegt die Aufgabe zugrunde, eine einfache, ein einwandfreies Falzen des Guts an einer nur durch Steuerung des Antriebs frei wählbaren Stelle ermöglichende Maschine der eingangs genannten Art zu schaffen, die auch Falzgut mit unbiegsamen Bestandteilen verarbeiten kann.The invention has for its object to provide a simple, a perfect folding of the good at a freely selectable point only by controlling the drive machine of the type mentioned, which can also process folded goods with inflexible components.

Die erfindungsgemässe Lösung dieser Aufgabe ist Gegenstand des Patentanspruchs 1.The inventive solution to this problem is the subject of claim 1.

Indem die erste Fördervorrichtung mit einem geradlinig auf den Falzwalzenspalt gerichteten Förderweg angeordnet ist, und die Umlenkführung das Falzgut nur in ihrer ersten Stellung umlenkt und in ihrer zweiten Stellung den Weg für ein geradliniges Weiterlaufen des Guts vom Förderwegende der ersten Fördervorrichtung zum Falzwalzenspalt freigibt, können am hinteren Teil des Falzguts angebrachte, unbiegsame Bestandteile, wie Heftklammern, Kreditkarten, Muster usw. geradlinig ungehindert durch die Maschine laufen. Indem die Förderwege der beiden Fördervorrichtungen in einem spitzen Winkel zum Falzwalzenspalt hin konvergierend angeordnet sind, laufen die an die zu falzende Linie angrenzenden Bereiche des Falzguts gleichermassen angetrieben konvergierend in den Falzwalzenspalt, so dass eine einwandfreie Falzung gewährleistet ist.By arranging the first conveying device with a conveying path directed in a straight line onto the folding nip, and the Deflection guide deflects the folded material only in its first position and in its second position clears the way for the material to continue in a straight line from the end of the conveying path of the first conveying device to the folding nip, inflexible components such as staples, credit cards, samples, etc. attached to the rear part of the folded material. walk straight through the machine unimpeded. By arranging the conveying paths of the two conveying devices to converge at an acute angle to the folding nip, the regions of the material to be folded adjoining the line to be folded converge convergingly into the folding nip so that a perfect folding is ensured.

Die Weiterbildung der Erfindung nach dem Anspruch 2 ermöglicht es, auch die Wenderichtung beim Falzen durch eine Aenderung der Steuerung umzukehren. Gegenstand des Anspruchs 3 ist eine zweckmässige Ausführungsform der Umlenkführung bzw. -führungen und des Falzwalzenpaares der Maschine.The development of the invention according to claim 2 makes it possible to reverse the direction of turning when folding by changing the control. The subject of claim 3 is an expedient embodiment of the deflection guide or guides and the folding roller pair of the machine.

Mit der erfindungsgemässen Maschine lassen sich Formate unterschiedlicher Grösse verschieden falzen. (Einfachfalz, Z-Falz, Rollfalz), wobei auch ein kleiner Abschnitt des zu falzenden Gutes beim Falzvorgang zuverlässig in der Maschine gehalten wird. Die Schenkellängen der Falzungen sind frei wählbar und einfach, ohne umständliche, mechanische Aenderung nur durch die Steuerung der Maschine einstellbar. Die erfindungsgemässe Maschine zeichnet sich ferner durch eine einfache, leichte und wenig aufwendige Konstruktion aus. Es werden keine ihre Lage ändernden Förderwalzen oder andere Teile angetrieben, keine Teile nennswerter Masse bewegt und es müssen keine genauen Drehbewegungen ausgeführt werden. Es ist lediglich erforderlich, alle Förder- und Falzwalzen mit gleicher Umfangsgeschwindigkeit anzutreiben.With the machine according to the invention, formats of different sizes can be folded differently. (Single fold, Z-fold, roll fold), whereby even a small section of the material to be folded is reliably held in the machine during the folding process. The leg lengths of the folds are freely selectable and easy to set, without complicated mechanical changes, only by controlling the machine. The machine according to the invention is further characterized by a simple, light and inexpensive construction. No conveyor rollers or other parts that change their position are driven, no parts of appreciable mass are moved and no precise rotary movements have to be carried out. It is only necessary to drive all conveyor and folding rollers with the same peripheral speed.

In folgenden wird die Erfindung anhand von lediglich einen Ausführungsweg vereinfacht, schematisch darstellender Zeichnungen näher erläutert. Es zeigen:

  • Fig. 1 eine Seitenansicht einer Falzstation,
  • Fig. 2, 3 und 4 Einfach-, einen Z- und einen Rollfalz,
  • Fig. 6 bis 8 Vorgänge vor und während des Falzens eines Einfachfalzes,
  • Fig. 9 und 10 Vorgänge beim Falzen der zweiten Falzung eines Z-Falzes,
  • Fig. 11 und 12 Vorgänge beim Falzen der zweiten Falzung eines Rollfalzes.
In the following, the invention is explained in more detail using only one embodiment, schematically illustrating drawings. Show it:
  • 1 is a side view of a folding station,
  • 2, 3 and 4 single, a Z and a roll fold,
  • 6 to 8 operations before and during the folding of a single fold,
  • 9 and 10 processes when folding the second fold of a Z-fold,
  • 11 and 12 processes when folding the second fold of a roll fold.

Die in Fig. 1 dargestellte Falzstation kann die einzige Falzstation einer Maschine zum einfachen Falzen (Fig. 2) oder die erste oder die zweite Station einer Maschine zur Herstellung von Z-Falzen (Fig. 3) oder von Rollfalzen (Fig. 4) sein. Dabei ist die Konstruktion dieselbe, abgesehen von einer gegebenenfalls erforderlichen Berücksichtigung der Falzgutdicke die bei der Herstellung eines zweiten Falzes um die Hälfte grösser ist als bei der Herstellung eines ersten. Unterschiedlich sind nur die jeweiligen von Falzgutformat und der Falzart abhängigen Förderstrecken und die von der Falzart abhangigen Wenderichtungen.The folding station shown in FIG. 1 can be the only folding station of a machine for simple folding (FIG. 2) or the first or the second station of a machine for producing Z-folds (FIG. 3) or roller folds (FIG. 4) . The construction is the same, apart from a possibly necessary consideration of the thickness of the folded goods, which is half as large when producing a second fold as when producing a first. The only differences are the respective conveyor sections depending on the size of the folded goods and the type of fold and the directions of rotation depending on the type of fold.

Nach Fig. 1 ist der gerade Förderweg einer ersten Falzgutfördervorrichtung 1, mit Förderwalzen 2 und 3 und Führungswänden 4 und 5 auf den Walzenspalt 6 eines Vorfalzwalzenpaares 7, 8 gerichtet. Demgemäss liegt der Förderweg dieser ersten Fördervorrichtung 1 in der gemeinsamen Tangentialebene der Vorfalzwalzen 7 und 8. Diese erste Fördervorrichtung 1 fördert in Richtung 9.1, the straight conveying path of a first folded material conveying device 1, with conveying rollers 2 and 3 and guide walls 4 and 5, is directed onto the nip 6 of a pre-folding roller pair 7, 8. Accordingly, the conveying path of this first conveying device 1 lies in the common tangential plane of the pre-folding rollers 7 and 8. This first conveying device 1 conveys in the direction 9.

Der Förderweg einer zweiten Falzgutfördervorrichtung 11 die Förderwalzen 12 und 13 und Führungswände 14 und 15 hat, verläuft in einem spitzen Winkel zum Förderweg der ersten Fördervorrichtung 1, so dass diese beiden Förderwege zum Walzenspalt 6 hin konvergieren. Die Förderrichtung der zweiten Fördervorrichtung 11 ist umkehrbar (Förderrichtungen 16 und 17).The conveying path of a second folded material conveying device 11, which has conveying rollers 12 and 13 and guide walls 14 and 15, runs at an acute angle to the conveying path of the first conveying device 1, so that these two conveying paths converge towards the roller gap 6. The conveying direction of the second conveying device 11 is reversible (conveying directions 16 and 17).

In einem Scheitelbereich des spitzen Winkels, bis an den sich die Fördervorrichtungen 1 und 11 bzw. -wege erstrecken, ist eine den beiden Förderwegen zugeordnete Umlenkführung 20 angeordnet. Diese ist um eine Achse 21 in die ausgezogen dargestellte Wirkungsstellung in der sie das Falzgut vom Ende des Förderweges der ersten Fördervorrichtung 1 zum Förderweg der zweiten Fördervorrichtung 11 umlenkt, und in eine strichpunktiert dargestellte wirkungslose Ruhestellung 20', in der sie den Raum zwischen dem Vorfalzwalzenpaar 7, 8 und den Förderwegen der Fördervorrichtungen 1 und 11, also dem genannten Scheitelbereich, freigibt, bewegbar. Damit dieser Raum, in dem das Falzgut in Ruhestellung 20' der Umlenkführung nicht geführt ist (Fig. 8), klein bemessen und die Umlenkführung trotzdem aus diesem Raum herausgeschwenkt werden kann, besteht sie bei der dargestellten Ausführungsart aus mehreren Führungsbügeln, und die Falzwalze 8 hat Umfangsnuten, in die in der strichpunktiert dargestellten Ruhestellung 20' der Umlenkführung je einer der Bügel hineinragt. Die innere Begrenzung dieser Nuten ist mit 22 bezeichnet. Da infolge dieser Umfangsnuten kein kontinuierlich scharfer Falz durch das Falzwalzenpaar 7 und 8 gebildet wird, wirkt dasselbe als Vorfalzwalzenpaar, und es ist ein Nachfalzwalzenpaar 23, 24 vorgesehen, dessen Walzenspalt 25 ebenso wie der Walzenspalt 6 des Vorfalzwalzenpaares 7 und 8 in der Förderwegebene der ersten Fördervorrichtung 1 liegt.A deflection guide 20 assigned to the two conveying paths is arranged in an apex region of the acute angle, to which the conveying devices 1 and 11 or paths extend. This is about an axis 21 in the drawn-out operative position in which it deflects the folded material from the end of the conveying path of the first conveying device 1 to the conveying path of the second conveying device 11, and in an inactive inoperative rest position 20 ', shown in broken lines, in which it defines the space between the folding roller pair 7, 8 and the conveying paths of the conveying devices 1 and 11, that is to say the apex region mentioned, are movable. So that this space, in which the folded material is not guided in the rest position 20 'of the deflection guide (FIG. 8), is small and the deflection guide can still be pivoted out of this space, it consists of several guide brackets in the embodiment shown, and the folding roller 8 has circumferential grooves into which one of the brackets projects into the rest position 20 'of the deflection guide shown in dash-dotted lines. The inner boundary of these grooves is designated 22. Since, due to these circumferential grooves, a continuously sharp fold is not formed by the pair of folding rollers 7 and 8, the same acts as a pair of folding rollers, and a pair of folding rollers 23, 24 is provided, the roller gap 25 of which, like the roller gap 6 of the pair of folding rollers 7 and 8, is in the conveying plane of the first Conveyor 1 is located.

Der Förderweg einer der zweiten Falzgutfördervorrichtung 11 entsprechenden, dritten Falzgutfördervorrichtung 29, die Förderwalzen 30 und 31 und Führungswände 32 und 33 hat, ist, bezogen auf den Förderweg der ersten Falzgutfördervorrichtung 1 symmetrisch zu dem der zweiten Falzgutfördervorrichtung 11 angeordnet. Die Förderrichtungen der dritten Fördervorrichtung 29 sind mit 34 und 35 bezeichnet. Entsprechend der der ersten und zweiten Fördervorrichtung 1 und 11 zugeordneten Umlenkführung 20 ist der ersten und dritten Fördervorrichtung 1 und 29 eine zweite Umlenkführung 38 zugeordnet, die um eine Achse 39 schwenkbar und in Fig. 1 nur in ihrer Ruhestellung 38' dargestellt ist, in der ihre Bügel in Umfangsnuten der Vorfalzwalze 7 hineinragen, deren innere Begrenzung mit 40 bezeichnet ist.The conveying path of a third folding material conveying device 29 corresponding to the second folded material conveying device 11, which has conveying rollers 30 and 31 and guide walls 32 and 33, is arranged symmetrically with respect to the conveying path of the first folded material conveying device 1 to that of the second folded material conveying device 11. The funding directions of the third Conveyor 29 are designated 34 and 35. Corresponding to the deflection guide 20 assigned to the first and second conveying devices 1 and 11, the first and third conveying devices 1 and 29 are assigned a second deflecting guide 38 which can be pivoted about an axis 39 and is only shown in its rest position 38 'in FIG. 1, in which their brackets protrude into circumferential grooves of the pre-folding roller 7, the inner boundary of which is designated by 40.

Wenn das Falzgut zum Falzen nach unten gewendet werden soll, werden nur die erste und die zweite Fördervorrichtung 1 und 11 und die diesen zugeordnete Umlenkführung 20 verwendet. Zum Wenden nach oben werden die erste und die dritte Fördervorrichtung 1 und 29 und die diesen zugeordnete Umlenkführung 38 verwendet. Die zweite bzw. dritte Fördervorrichtung 11 bzw. 29 und die Umlenkführung 20 bzw. 38 ist also überflüssig, wenn immer in derselben Richtung (nach oben bzw. unten) gewendet werden soll.If the folded material is to be turned down for folding, only the first and second conveying devices 1 and 11 and the deflection guide 20 assigned to them are used. The first and third conveyor devices 1 and 29 and the deflection guide 38 assigned to them are used for turning upwards. The second or third conveying device 11 or 29 and the deflection guide 20 or 38 is therefore superfluous if it is always to be turned in the same direction (up or down).

Zur Herstellung eines Einfachfalzes (Fig. 2) wird das aus einem oder mehreren übereinander liegenden Blättern bestehende Falzgut 43, 44 der ersten Fördervorrichtung 1 zugeführt (Fig. 5). Soll der in Förderrichtung 9 vorangehende Teil 43 des Falzgutes zum Falzen nach unten gewendet werden, so ist die Umlenkführung 20 zunächst in ihrer,Wirkungsstellung, die Umlenkführung 38 ist, falls vorhanden, in ihrer Ruhestellung 38' (Fig. 1). Die Umlenkführung 20 lenkt den vorderen Teil 43 des Falzgutes in die zweite Fördervorrichtung 11, deren Förderwalzen 12 und 13 ihn erfassen und in Richtung 16 fördern (Fig. 6). Wenn die zu falzende Stelle A eine bestimmte Lage an der Umlenkführung 20 erreicht hat (Fig. 7), wird die Umlenkführung 20 in ihre Ruhestellung 20' geschwenkt, und die bisherige Förderrichtung 16 der zweiten Fördervorrichtung 11 umgekehrt (Richtung 17 Fig. 8). Die Richtungsumkehrung ist in Fig. 7 (ebenso in Fig. 11 und entsprechend in Fig. 9) durch einen gebrochenen Pfeil dargestellt dessen Spitze in die neue Richtung zeigt. Zur Umsteuerung der Förderrichtung kann in an sich bekannter Weise z.B. die Fördervorrichtung 1 mit einer längs ihres Förderweges verstellbaren (nicht dargestellten) Lichtschranke ausgerüstet sein, die auf das in Förderrichtung 9 hintere Ende des Falzgutteils 44 anspricht und dabei die Umkehrung der Förderrichtung auslöst. Ihre Stellung ist nach einer Probefalzung erforderlichenfalls entsprechend dem Abstand des Probefalzes von der gewünschten Falzstelle zu korrigieren. Die beiden Fördervorrichtungen 1 und 11 fördern nun das Falzgut 43. 44 mit der durch die Umlenkung gebogenen Stelle voran, nämlich dem Falzgutteil 44 in Richtung 9 und den Falzgutteil 43 in Richtung 17, woraufhin zwischen den-Vorfalzwalzen 7 und 8 ein zunächst, wie erwähnt, nicht kontinuierlicher Falz an der Stelle A gebildet und danach im Nachfalzwalzenpaar 23 und 24 vervollständigt wird (Fig. 8). Bei diesen Vorgängen bleibt der nicht gewendete Teil 44 des Falzgutes beim Durchlaufen der ganzen Falzstation immer eben, er kann also unbiegsame Bestandteile, z.B. Büroklammern oder eine Kreditkarte enthalten ohne dass diese beschädigt oder der Falzvorgang gestört wird.To produce a single fold (FIG. 2), the folded material 43, 44 consisting of one or more sheets lying one above the other is fed to the first conveying device 1 (FIG. 5). If the part 43 of the folded material preceding in the conveying direction 9 is to be turned downwards for folding, the deflection guide 20 is initially in its operative position, the deflection guide 38, if present, is in its rest position 38 '(FIG. 1). The deflection guide 20 directs the front part 43 of the folded material into the second conveying device 11, the conveying rollers 12 and 13 of which grip it and convey it in the direction 16 (FIG. 6). When the point A to be folded has reached a certain position on the deflection guide 20 (FIG. 7), the deflection guide 20 is pivoted into its rest position 20 ′ and the previous conveying direction 16 of the second conveying device 11 is reversed (direction 17 FIG. 8). The reversal of direction is shown in FIG. 7 (likewise in FIG. 11 and correspondingly in FIG. 9) by a broken arrow whose tip points in the new direction. To change the conveying direction, e.g. the conveying device 1 can be equipped with a light barrier which is adjustable along its conveying path (not shown) and which responds to the rear end of the folded part 44 in the conveying direction 9 and thereby triggers the reversal of the conveying direction. After a trial fold, its position must be corrected according to the distance of the trial fold from the desired fold. The two conveying devices 1 and 11 now convey the folded goods 43, 44 with the point bent by the deflection first, namely the folded goods part 44 in the direction 9 and the folded goods part 43 in the direction 17, whereupon a first, as mentioned, between the folding rollers 7 and 8 , discontinuous fold is formed at point A and is then completed in the pair of folding rollers 23 and 24 (Fig. 8). In these processes, the unturned part 44 of the folding material always remains level when it passes through the entire folding station, so it can contain inflexible components, e.g. Contain paper clips or a credit card without damaging it or disturbing the folding process.

Die Vorgänge zur Herstellung der ersten Falzung 8 bzw. D eines Z- bzw. Rollfalzes (Fig. 3 bzw. 4) sind die im Zusammenhang mit Fig. 1, 2 und 5 bis 8 für die Falzung an der Stelle A beschriebenen, mit dem Unterschied dass das Falzgut dabei nicht, wie beim Einfachfalz die Regel in der Mitte (A) sondern zwischen dem ersten und dem zweiten Drittel 47 und 48 (Fig. 3 und 9) bzw. 52 und 53 (Fig. 4 und 11) gefalzt wird.The processes for producing the first fold 8 or D of a Z or roll fold (FIGS. 3 or 4) are those described in connection with FIGS. 1, 2 and 5 to 8 for the fold at point A, with which The difference is that the folded material is not folded, as is the case with single folding, the rule in the middle (A), but between the first and second thirds 47 and 48 (FIGS. 3 and 9) or 52 and 53 (FIGS. 4 and 11) .

Um das in einer ersten Falzstation bei B gefalzte Gut 47, 48, 49 zur Bildung eines Z-Falzes (Fig. 3) nochmals bei C zu falzen, wird es in derselben Richtung und in derselben Ebene, in der es die erste Falzstation verlässt, von der Fördervorrichtung 1 einer zweiten Falzstation im Richtung 9 übernommen, an deren in Wirkungsstellung stehenden Umlenkführung 38 in die Fördervorrichtung 29 umgelenkt, in den Fördervorrichtungen 1 und 29 in Richtumg 9 und 34 gefördert, bis die Stelle C die vorbestimmte Lage an der Umlenkführung 38 hat (Fig. 9). Dann wird bei in Ruhelage 38' geschwenkter Umlenkvorrichtung die Fördervorrichtung 1 weiter in Richtung 9 und die Fördervorrichtung 29 mit umgekehrter Förderrichtung 35 angetrieben. Dadurch wird das Gut mit der vorher an der Umlenkführung 38 gekrümmten Stelle voran durch den von der Umlenkführung in Ruhestellung 38' nun freigegebenen Raum zum Vorfalzwalzenpaar 7, 8 gefördert, von diesem an der Stelle C vorgefalzt und danach vom Nachfalzwalzenpaar 23, 24 nachgefalzt (Fig. 10).In order to fold the material 47, 48, 49 folded in a first folding station at B to form a Z fold (FIG. 3) again at C, it is folded in the same direction and in the same plane in which it leaves the first folding station, taken over by the conveying device 1 of a second folding station in the direction 9, deflected into the conveying device 29 at its deflecting guide 38 which is in the operative position, conveyed in the conveying devices 1 and 29 in the direction 9 and 34 until point C has the predetermined position on the deflecting guide 38 (Fig. 9). Then, with the deflection device pivoted in the rest position 38 ', the conveying device 1 is driven further in the direction 9 and the conveying device 29 with the opposite conveying direction 35. As a result, the material is conveyed with the point previously curved on the deflecting guide 38 through the space now released by the deflecting guide in the rest position 38 'to the pre-folding roller pair 7, 8, pre-folded by this at point C and then refolded by the refolding roller pair 23, 24 (Fig 10).

Um das in einer ersten Falzstation bei D gefalzte Gut zur Bildung eines Rollfalzes (Fig. 4)nochmals bei E zu falzen, wird es in derselben Richtung und in derselben Ebene, in der es die erste Falzstation verlasst, von der Fördervorrichtung 1 einer zweiten Falzstation in Richtung 9 übernommen, in Wirkungsstellung deren Umlenkführung 20 in die Fördervorrichtung 11 umgelenkt, in den Fördervorrichtungen 1 und il in Richtung 9 bzw. 16 gefordert, bis die Stelle E die vorbestimmte Lage an der Umlenkführung 20 hat (Fig. 11). Dann wird bei in Ruhestellung 20' geschwenkter Umlenkführung die Fördervorrichtung 1 weiter in Richtung 9 und die Fördervorrichtung 11 mit umgekehrter Förderrichtung 17 angetrieben, so dass das Gut mit der vorher an der Umlenkführung 20 gekrümmten Stelle voran durch den von der Umlenkführung in Ruhestellung 20' nun freigegebenen Raum zwischen die Vorfalzwalzen 7 und 8 gefördert an der Stelle E vorgefalzt und danach vom Nachfalzwalzenpaar 23 24 nachgefalzt wird (Fig. 12).In order to fold the material folded in a first folding station at D to form a roll fold (FIG. 4) again at E, it is conveyed by the conveying device 1 of a second folding station in the same direction and in the same plane in which it leaves the first folding station taken in the direction 9, in the operative position, the deflection guide 20 deflected into the conveying device 11, in the conveying devices 1 and 11 in the direction 9 and 16, respectively, until the point E has the predetermined position on the deflecting guide 20 (FIG. 11). Then, with the deflection guide pivoted in the rest position 20 ', the conveying device 1 is driven further in the direction 9 and the conveying device 11 with the opposite conveying direction 17, so that the material is now ahead with the point previously curved on the deflection guide 20 by the position of the deflection guide in the rest position 20' released space between the pre-folding rollers 7 and 8 conveyed at location E and then rebated by the pair of refolding rollers 23 24 (FIG. 12).

Wie ersichtlich, bleibt auch bei der Herstellung eines Z- oder Rollfalzes der Teil 49 bzw. 54 des Falzgutes immer eben und immer in derselben Ebene, so dass er, wie erwähnt, unbiegsame Bestandteile, wie z.B. Heftklammern oder eine Kreditkarte, aufweisen kann.As can be seen, even in the production of a Z or roll fold, the part 49 or 54 of the folded material always remains flat and always in the same plane, so that, as mentioned, it contains inflexible components such as e.g. Staples or a credit card.

Claims (3)

1. A folding machine, with a first device (1) conveying the material to be folded and feeding the material to be folded, and a second device (11), of the same conveying speed, conveying the material to be folded, but in reversible conveying direction (16, 17), as well as a deflection guide (20), arranged between the two conveying devices and a pair of folding rollers (7, 8), for the material emerging from the first conveying device (1), which guide is movable by means of a movement device from a first position, in which it steers the material from the end of the conveying path of the first conveying device (1) to the conveying path of the second conveying device (11), into a second position (20') in which the material runs from the end of the conveying path of the first conveying device (1) to the folding roller gap (6), in which respect the drive of the two conveying devices (1, 11) and of the movement device is so controlled that in the first position of the deflection guide (20) the material (43, 44) is conveyed by the first (1) and into the second conveying device (11), until the location (A), to be folded, of the material (43, 44) reaches a predetermined location in the region of the deflection guide (20), then the deflection guide (20) is moved into the second position (20') and the first conveying device (1) is driven in its conveying direction (9) and at the same time the second conveying device (11) is driven in the opposite direction (17) to its previous conveying direction (16), in order to feed the material (43, 44) with the location (A) previously curved in the region of the deflection guide (20) onwards to the folding roller gap (6), characterised in that the first conveying device (1) is arranged with a conveying path directed in a straight line towards the folding roller gap (6) and the second conveying device (11) is arranged at an acute angle converging towards the folding roller gap (6), and in that the deflection guide (20) deflects the material only in its first position and in its second position (201) frees the path for straight running-on of the material from the end of the conveying path at the first conveying device (1) to the folding roller gap (6).
2. A machine according to claim 1, characterised in that a third conveying device (29) which corresponds to the second conveying device (11) is preferably arranged with its conveying path symmetrically to the conveying path of the second conveying device (11) with respect to that of the first conveying device (1), in that a second deflection guide (38) which corresponds to the deflection guide (20) is associated with the first (1) and the third conveying device (29) and in that selectively the third conveying device (29) is drivable instead of the second one (11) and the second deflection guide (38) is movable instead of the first one (20).
3. A machine according to claim or 2, characterised in that the or respectively each deflection guide (20, 38) is formed by several jointly swingable guide yokes which in the second position of the deflection guide each project into a peripheral groove (22, 40) of one of the folding rollers (7, 8), which form a pair of preliminary folding rollers which are followed by a pair of subsequent folding rollers (23, 24), the rollers of which have an uninterrupted outer surface, and in that the roller gap (6) of the pair of preliminary folding rollers (7, 8) and the roller gap (25) of the pair of subsequent folding rollers (23, 24) lie in the plane of the conveying path of the girst conveying device (1).
EP83110866A 1982-12-09 1983-10-31 Folding machine Expired EP0113403B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH7163/82 1982-12-09
CH7163/82A CH659054A5 (en) 1982-12-09 1982-12-09 FOLDING MACHINE.

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EP0113403A1 EP0113403A1 (en) 1984-07-18
EP0113403B1 true EP0113403B1 (en) 1986-07-23

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DE (1) DE3364752D1 (en)

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Publication number Priority date Publication date Assignee Title
US5045039A (en) * 1989-06-16 1991-09-03 Otto Bay Program controlled sheet folding apparatus for folding large sheets into predetermined formats
US5114395A (en) * 1990-03-23 1992-05-19 Martin Yale Industries, Inc. Paper sheet folding device
US5092832A (en) * 1990-06-11 1992-03-03 Roll Systems, Inc. Method and apparatus for creasing continuous web
US5364332A (en) * 1993-07-01 1994-11-15 Xerox Corporation Soft nip folder
US6095961A (en) * 1998-05-14 2000-08-01 F. L. Smithe Machine Company, Inc. Radial aligner and folding mechanism
US7137554B2 (en) * 2000-02-23 2006-11-21 Dynetics Engineering Corporation, Inc. Card mailer system and method of preparing card packages for mailing
US6773388B2 (en) * 2002-06-28 2004-08-10 Pitney Bowes Inc. Folder apparatus with transverse loading
EP2921444B1 (en) * 2014-03-18 2020-02-05 Ricoh Company, Ltd. Image forming system comprising a sheet processing apparatus
US11872114B2 (en) * 2019-01-24 2024-01-16 Curt G. Joa, Inc. Method and apparatus for high-speed cross-folding of absorbent sanitary products

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US2354251A (en) * 1942-08-15 1944-07-25 William W Fitzhugh Inc Folding device
US3961781A (en) * 1969-11-03 1976-06-08 R. Funk & Co., Inc. Foldable-sheet processing systems
US3831927A (en) * 1970-04-24 1974-08-27 Oce Van Der Grinten Nv Method and apparatus for folding sheets such as drawings
US3790157A (en) * 1971-05-07 1974-02-05 Fmc Corp Folding machine
US3905593A (en) * 1973-05-07 1975-09-16 Super Laundry Mach Co Flatwork folding system
US3921506A (en) * 1974-03-04 1975-11-25 Int Paper Co Apparatus for the manufacture of dunnage bag liners
US4060227A (en) * 1976-06-29 1977-11-29 Gold Thread Machinery Co. Folder

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EP0113403A1 (en) 1984-07-18
CH659054A5 (en) 1986-12-31
DE3364752D1 (en) 1986-08-28

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