EP0623543B1 - Folding device for documents with a pivotable guide - Google Patents

Folding device for documents with a pivotable guide Download PDF

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Publication number
EP0623543B1
EP0623543B1 EP94400827A EP94400827A EP0623543B1 EP 0623543 B1 EP0623543 B1 EP 0623543B1 EP 94400827 A EP94400827 A EP 94400827A EP 94400827 A EP94400827 A EP 94400827A EP 0623543 B1 EP0623543 B1 EP 0623543B1
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EP
European Patent Office
Prior art keywords
rollers
guide
paper
input
document
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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 - Lifetime
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EP94400827A
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German (de)
French (fr)
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EP0623543A1 (en
Inventor
Jacques Beord
Hervé Baumann
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Secap SA
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Secap SA
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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
    • B65H45/14—Buckling folders

Definitions

  • the present invention relates to a folder intended to ensure the folding of documents to be placed in an envelope. It is particularly intended for office folding machines.
  • Pocket folders fold a document in half or three. They use two pockets, generally arranged in a V, coupled to a folding assembly formed by four rollers. This technology using a large number of mechanical parts generates, on the one hand, a considerable bulk and, on the other hand, poor accessibility during paper jams.
  • Document US-A-4 997 175 discloses a folder of the type comprising two upstream rollers for feeding paper, controlled by first control means, two downstream rollers for outputting paper controlled by second control means, a paper guide pivotally disposed between the upstream rollers and the downstream rollers, capable of taking a first and a second position, the guide in its first position directing the paper from the upstream rollers to the downstream rollers, and, in its second position, directing the paper from the upstream rollers to a location spaced from the downstream rollers, a pressure roller capable of being pressed against one of the two rollers when the guide is in the first position, an electronic control unit for synchronizing and controlling the guide pivoting and upstream and downstream roller movement.
  • the object of the invention is to avoid the above drawbacks and to propose a machine of simple and robust design, generally more compact, which can also simply allow the realization of two folds or one, with a reduced total number of mechanical parts.
  • roller we mean both continuous rollers as discontinuous rollers or sets of rollers.
  • This loop leader is laminated between the downstream rollers together with the loop leader formed in step f).
  • means are provided for detecting the paper, for example a cell detecting the passage of the front and rear edges of a document.
  • This cell is preferably placed on the guide.
  • the flap folder has a main structure formed by plates 1 and 1 'and spacers 2.
  • the purpose of this box structure is to assemble and guide the various elements constituting the folding system.
  • the part carrying the document to be folded comprises two axes 3 and 3 'linked in rotation by two synchronization gears 4 and 4'. These two axes, mounted on bearings, support four pairs of tangent rollers 5. Said rollers are coated with a flexible and adherent bandaga. The rotation of said rollers is ensured by the motor 6 of the stepping type by means of the coupling sleeve 7.
  • the guide or switching flap 8 making it possible to orient the document to be folded, comprises two main plates 9 and 9 ′ between which the document travels. They are made integral by the two lateral spacer plates 10 and 10 '. On the latter are screwed two pins 11 and 11 'allowing the rotation of said switch flap 8.
  • the rotation of this assembly is due to the motor 12 mounted at the end of the shaft 11 by the coupling sleeve 13. Notches of clearance are made in the plates 9 and 9 'in order to avoid any collision with the rollers 5 for feeding the document during the rotation of the flap 8.
  • Two coated rollers 14 and 14', free in rotation, are mounted on the axis 15. This axis, parallel to the axis of rotation of the flap 8, is linked to the plate 9 'by the brackets 16 and 16'.
  • a reflection cell 17 is fixed to the plate 9 to scan the passage of the paper.
  • the folding assembly mounted downstream of the switching flap 8 consists of two tangent rollers 18 and 18 ′ coated with a flexible and adherent bandage. These two rollers are synchronized in rotation by two gears 19 and 19 '. The folding rollers are rotated by the direct current geared motor 20 via the pulley-toothed belt assembly 21.22.23.
  • the switching flap 8 is in the high position 24.
  • the rollers 5 for feeding the document are started up.
  • the document is first conveyed by a device located upstream of the folding system and not forming part of the invention. Said document is then taken over by the rollers 5 and then introduced into the switching flap 8.
  • the microprocessor managing the movement of the document by the stepping motor 6 then receives the information of passage from the front edge of the document in front of the cell reflection 17. From this event, said microprocessor drives the motor 6 so that the document comes into abutment in the pair of rollers 18 and 18 '.
  • FIG. 6 shows the next step.
  • the switch flap 8 is then tilted by the motor 7 from the high position 24 to a low position 25. From the start of this rotation, the feed rollers of the document 5 are started. The document then forms the loop 26. It is by acting on the length of this loop, therefore on the number of steps taken by the feed rollers since they are started that the length of the folds is varied.
  • the control system stops the rotation of the motor 6 and therefore of the rollers 5.
  • FIG. 7 shows the next step.
  • the switching flap 8 is then tilted by the motor 7 from the low position 25 to a high position 24.
  • the rollers 14 and 14 'then apply the document loop on the roller 18'.
  • the document feed rollers 5 are then started up. This has effect the formation of a small loop 27.
  • Figure 8 shows the next step.
  • the motor 6 performs the number of steps ensuring good pressurization of the loop 27 on the folding rollers 18 and 18 '.
  • the microprocessor then triggers the rotation of the rollers 18 and 18 'via the motor 25.
  • the loop 27 is thus laminated by the pair of rollers 18 and 18'.
  • Figure 9 shows the next step.
  • the rollers 18 and 18 'continuing their rotation then laminate the loop 26 and then eject the document folded in three towards a receptacle located downstream of the folding system not forming part of the invention.
  • the reflection cell 17 informs the microprocessor of the passage of the rear edge of the document. After a time guaranteeing the complete ejection of the folded document, the microprocessor stops the rotation of the rollers 18, 18 'and 5.
  • the switch flap 8 is in the low position 25.
  • the rollers 5 for feeding the document are started up.
  • the document is first conveyed by a device located upstream of the folding system and not forming part of the invention. Said document is then taken over by the rollers 5 and then introduced into the switching flap 8.
  • the microprocessor managing the movement of the document by the stepping motor 6 then receives the passage information from the front edge of the document in front of the reflection cell 17. From this event, said microprocessor controls the motor 6 so that the rollers 5 unwind the required document length. It is indeed this length of document unwound which conditions the length of the folds.
  • Figure 12 shows the next step.
  • the switch flap 8 is then tilted by the motor 7 from the low position 25 to a high position 24.
  • the rollers 14 and 14 'then apply the document to the roller 18'.
  • the document feed rollers 5 are then started up. This has the effect of forming a small loop 27.
  • Figure 13 shows the next step.
  • the motor 6 performs the number of steps ensuring good pressurization of the loop 26 on the folding rollers 18 and 18 '.
  • the microprocessor then initiates rotation 18 and 18 'via the motor 13.
  • the loop 27 is thus laminated by the pair of rollers 18 and 18'.
  • FIG. 14 shows the final step: the rollers 18 and 18 ′ continue their rotation then eject the document folded in half towards a receptacle situated downstream from the folding system which is not part of the invention.
  • the reflection cell 17 informs the microprocessor of the passage of the rear edge of the document. After a time guaranteeing the complete ejection of the folded document, the microprocessor stops the rotation of the rollers 18, 18 'and 5.

Description

La présente invention concerne une plieuse destinée à assurer le pliage de documents à mettre sous enveloppe. Elle est particulièrement destinée aux plieuses de bureau.The present invention relates to a folder intended to ensure the folding of documents to be placed in an envelope. It is particularly intended for office folding machines.

Actuellement, le système de pliage le plus répandu sur ce type de machine est le système dit à poches, connu par exemple par le document EP-A-0 485 797.Currently, the most widespread folding system on this type of machine is the so-called pocket system, known for example from document EP-A-0 485 797.

Les plieuses à poches effectuent le pliage en deux ou en trois d'un document. Elles utilisent deux poches, disposées généralement en V, couplées à un ensemble de pliage formé de quatre rouleaux. Cette technologie mettant en oeuvre un grand nombre de pièces mécaniques engendre d'une part un encombrement important et d'autre part une accessibilité médiocre lors des bourrages de papier.Pocket folders fold a document in half or three. They use two pockets, generally arranged in a V, coupled to a folding assembly formed by four rollers. This technology using a large number of mechanical parts generates, on the one hand, a considerable bulk and, on the other hand, poor accessibility during paper jams.

Sur ce type de plieuse, le document vient heurter une butée située dans chacune des poches pour ensuite être pris en compte par les rouleaux de pliage. Le choc du papier sur ces butées engendre un niveau sonore important.On this type of folder, the document strikes a stop located in each of the pockets to then be taken into account by the folding rollers. The impact of the paper on these stops generates a significant noise level.

La modification de la longueur des plis est obtenue par le réglage de chaque butée de poche. L'opérateur doit intervenir manuellement pour effectuer ces réglages.The modification of the length of the folds is obtained by adjusting each pocket stop. The operator must intervene manually to make these adjustments.

On connaît aussi par les documents JP-A-631 676 ou GB-A-1 394 480 des plieuses comportant entre des rouleaux amont et des rouleaux aval un guide mobile entre deux positions qui amène le papier alternativement devant un premier ou un second couple de rouleaux aval, grâce auxquels sont formés les plis du document. Toutefois ces machines, par leur grand nombre de rouleaux et la complexité des commandes y afférentes, posent encore des problèmes de réalisation et d'entretien.Also known from documents JP-A-631 676 or GB-A-1 394 480 are bending machines comprising between upstream rollers and downstream rollers a movable guide between two positions which brings the paper alternately in front of a first or a second pair of downstream rollers, thanks to which the folds of the document are formed. However, these machines, by their large number of rollers and the complexity of the related controls, still pose problems of production and maintenance.

On connaît par le document US-A-4 997 175 une plieuse du type comportant deux rouleaux amont d'amenée du papier, commandés par des premiers moyens de commande, deux rouleaux aval de sortie du papier commandés par des seconds moyens de commande, un guide-papier disposé pivotant entre les rouleaux amont et les rouleaux aval, susceptible de prendre une première et une seconde position, le guide dans sa première position dirigeant le papier à partir des rouleaux amont vers les rouleaux aval, et, dans sa seconde position, dirigeant le papier à partir des rouleaux amont vers un endroit écarté des rouleaux aval, un rouleau presseur susceptible lorsque le guide est dans la première position de s'appliquer contre l'un des deux rouleaux, une unité électronique de commande pour synchroniser et commander le pivotement du guide et le mouvement des rouleaux amont et aval.Document US-A-4 997 175 discloses a folder of the type comprising two upstream rollers for feeding paper, controlled by first control means, two downstream rollers for outputting paper controlled by second control means, a paper guide pivotally disposed between the upstream rollers and the downstream rollers, capable of taking a first and a second position, the guide in its first position directing the paper from the upstream rollers to the downstream rollers, and, in its second position, directing the paper from the upstream rollers to a location spaced from the downstream rollers, a pressure roller capable of being pressed against one of the two rollers when the guide is in the first position, an electronic control unit for synchronizing and controlling the guide pivoting and upstream and downstream roller movement.

Par un jeu approprié de mouvements des rouleaux, il est possible de réaliser un pli. Cependant, comme les plieuses décrites plus haut, celle-ci nécessite des dispositifs d'entraînement complexes (notamment parce que certains des rouleaux doivent être bidirectionnels) et forme une machine encombrante. Il en est de même de la plieuse décrite dans le document EP-A-0 421 547, surtout dès lors qu'il s'agit de réaliser non plus un seul pli mais deux plis.By an appropriate set of roller movements, it is possible to make a fold. However, like the folding machines described above, this requires complex drive devices (in particular because some of the rollers must be bidirectional) and forms a bulky machine. The same applies to the folding machine described in document EP-A-0 421 547, especially when it is a question of making not one single ply but two pleats.

Le but de l'invention est d'éviter les inconvénients ci-dessus et de proposer une machine de conception simple et robuste, globalement plus compacte, pouvant aussi simplement permettre la réalisation de deux plis ou d'un seul, avec un nombre total réduit de pièces mécaniques.The object of the invention is to avoid the above drawbacks and to propose a machine of simple and robust design, generally more compact, which can also simply allow the realization of two folds or one, with a reduced total number of mechanical parts.

Selon l'invention, la plieuse est du type général décrit ci-dessus connu par US-A-4 997 175 et se caractérise en ce que le guide-papier pivotant comporte, solidaire de son mouvement, ledit rouleau presseur, de sorte que lorsque le guide est dans la première position, le rouleau presseur vient s'appliquer contre l'un des deux rouleaux aval, et lorsque le guide est dans la seconde position le rouleau presseur est dégagé dudit rouleau, et les premiers et seconds moyens de commande et l'unité de commande sont coordonnés pour réaliser les étapes suivantes :

  • c) passage du guide dans la seconde position,
  • d) entraînement en avant des rouleaux amont pour avancer le papier à travers le guide d'une première longueur prédéterminée, l'avant du papier étant dégagé des rouleaux aval,
  • e) passage du guide dans la première position, de sorte que le rouleau presseur appuie le papier contre l'un des deux rouleaux aval,
  • f) entraînement en avant des rouleaux amont pour avancer le papier à travers le guide d'une seconde longueur prédéterminée et former l'amorce d'une boucle dirigée vers les rouleaux aval,
  • g) entraînement en avant des rouleaux aval pour saisir l'amorce de boucle et entraîner le reste du papier.
According to the invention, the folder is of the general type described above known from US-A-4 997 175 and is characterized in that the pivoting paper guide comprises, integral with its movement, said pressure roller, so that when the guide is in the first position, the pressure roller comes to bear against one of the two downstream rollers, and when the guide is in the second position the pressure roller is released from said roller, and the first and second control means and the control unit are coordinated to carry out the following steps:
  • c) passage of the guide in the second position,
  • d) driving in front of the upstream rollers to advance the paper through the guide by a first predetermined length, the front of the paper being released from the downstream rollers,
  • e) passage of the guide in the first position, so that the pressure roller presses the paper against one of the two downstream rollers,
  • f) driving in front of the upstream rollers to advance the paper through the guide of a second predetermined length and to form the beginning of a loop directed towards the downstream rollers,
  • g) drive in front of the downstream rollers to grab the loop start and drive the rest of the paper.

Ces moyens permettent la réalisation d'un pli sur un document.These means allow the production of a fold on a document.

Il va de soi que par rouleau, on désigne aussi bien des rouleaux continus que des rouleaux discontinus ou des ensembles de galets.It goes without saying that by roller, we mean both continuous rollers as discontinuous rollers or sets of rollers.

Ces moyens sont avantageusement complétés de façon à permettre la réalisation d'un second pli, en sens inverse. A cet effet les premiers et seconds moyens de commande et l'unité de commande sont coordonnés pour réaliser, avant les étapes c) à g), les étapes suivantes:

  • a) passage du guide dans la première position
  • b) entraînement en avant des rouleaux amont pour avancer le papier à travers le guide d'une troisième longueur prédéterminée suffisante pour que le front avant du papier soit saisi dans les rouleaux aval,
l'entraînement en avant subséquent des rouleaux amont lors de l'étape d) ayant pour effet de former une amorce de boucle s'écartant des rouleaux amont et aval.These means are advantageously supplemented so as to allow the production of a second fold, in the direction reverse. To this end, the first and second control means and the control unit are coordinated to carry out, before steps c) to g), the following steps:
  • a) passage of the guide in the first position
  • b) driving in front of the upstream rollers to advance the paper through the guide by a third predetermined length sufficient for the front edge of the paper to be gripped in the downstream rollers,
the subsequent forward drive of the upstream rollers during step d) having the effect of forming a loop initiator deviating from the upstream and downstream rollers.

Cet amorce de boucle est laminée entre les rouleaux d'aval en même temps que l'amorce de boucle formée dans l'étape f).This loop leader is laminated between the downstream rollers together with the loop leader formed in step f).

Avantageusement, il est prévu des moyens de détection du papier, par exemple une cellule détectant le passage du front avant et arrière d'un document. Cette cellule est de préférence placée sur le guide.Advantageously, means are provided for detecting the paper, for example a cell detecting the passage of the front and rear edges of a document. This cell is preferably placed on the guide.

D'autres caractéristiques et avantages de la présente invention ressortiront de la description ci-après d'un exemple de réalisation illustré dans les dessins ci-annexés. Dans ces dessins :

  • La figure 1 est une vue en coupe développée d'une plieuse à volet selon la présente invention.
  • Les figures 2,3,4 montrent des vues de profil selon les vues F-F1 et IV-IV de la figure 1.
  • Les figures 5,6,7,8,9 montrent des vues de profil lors des différentes étapes d'un pliage en trois.
  • Les figures 10,11,12,13,14 montrent des vues de profil lors des différentes étapes d'un pliage en deux.
Other characteristics and advantages of the present invention will emerge from the description below of an exemplary embodiment illustrated in the attached drawings. In these drawings:
  • Figure 1 is a developed sectional view of a shutter folder according to the present invention.
  • Figures 2,3,4 show side views according to views F-F1 and IV-IV of Figure 1.
  • Figures 5,6,7,8,9 show side views during the different stages of a tri-fold.
  • Figures 10,11,12,13,14 show side views during the different stages of folding in half.

La plieuse à volet comporte une structure principale formée des platines 1 et 1' et des entretoises 2. Cette structure en caisson a pour but le montage et le guidage des divers éléments constituant le système de pliage.The flap folder has a main structure formed by plates 1 and 1 'and spacers 2. The purpose of this box structure is to assemble and guide the various elements constituting the folding system.

La partie réalisant l'amenée du document devant être plié comprend deux axes 3 et 3' liés en rotation par deux engrenages de synchronisation 4 et 4'. Ces deux axes, montés sur paliers, supportent quatre paires de galets tangents 5. Lesdits galets sont revêtus d'un bandaga souple et adhérent. La mise en rotation desdits galets est assurée par le moteur 6 de type pas à pas par l'intermédiaire du manchon d'accouplement 7.The part carrying the document to be folded comprises two axes 3 and 3 'linked in rotation by two synchronization gears 4 and 4'. These two axes, mounted on bearings, support four pairs of tangent rollers 5. Said rollers are coated with a flexible and adherent bandaga. The rotation of said rollers is ensured by the motor 6 of the stepping type by means of the coupling sleeve 7.

Le guide ou volet d'aiguillage 8, permettant d'orienter le document à plier, comporte deux plaques principales 9 et 9' entre lesquelles chemine le document. Elles sont rendues solidaires par les deux plaques entretoises latérales 10 et 10'. Sur ces dernières sont vissés deux tourillons 11 et 11' permettant la rotation dudit volet d'aiguillage 8. La rotation de cet ensemble est due au moteur 12 monté en bout de l'arbre 11 par le manchon d'accouplement 13. Des échancrures de dégagement sont réalisées dans les plaques 9 et 9' afin d'éviter toute collision avec les galets 5 d'amenée de document lors de la rotation du volet 8. Deux galets revêtus 14 et 14', libres en rotation, sont montés sur l'axe 15. Cet axe, parallèle à l'axe de rotation du volet 8, est lié à la plaque 9' par les équerres 16 et 16'. Une cellule à réflexion 17 est fixée sur la plaque 9 pour scruter le passage du papier.The guide or switching flap 8, making it possible to orient the document to be folded, comprises two main plates 9 and 9 ′ between which the document travels. They are made integral by the two lateral spacer plates 10 and 10 '. On the latter are screwed two pins 11 and 11 'allowing the rotation of said switch flap 8. The rotation of this assembly is due to the motor 12 mounted at the end of the shaft 11 by the coupling sleeve 13. Notches of clearance are made in the plates 9 and 9 'in order to avoid any collision with the rollers 5 for feeding the document during the rotation of the flap 8. Two coated rollers 14 and 14', free in rotation, are mounted on the axis 15. This axis, parallel to the axis of rotation of the flap 8, is linked to the plate 9 'by the brackets 16 and 16'. A reflection cell 17 is fixed to the plate 9 to scan the passage of the paper.

L'ensemble de pliage, monté en aval du volet d'aiguillage 8 est constitué de deux rouleaux tangents 18 et 18' revêtus d'un bandage souple et adhérent. Ces deux rouleaux sont synchronisés en rotation par deux engrenages 19 et 19'. La mise en rotation des rouleaux de pliage est assurée par le motoréducteur à courant continu 20 via l'ensemble poulies-courroie crantée 21,22,23.The folding assembly, mounted downstream of the switching flap 8 consists of two tangent rollers 18 and 18 ′ coated with a flexible and adherent bandage. These two rollers are synchronized in rotation by two gears 19 and 19 '. The folding rollers are rotated by the direct current geared motor 20 via the pulley-toothed belt assembly 21.22.23.

Les différents étapes nécessaires à l'obtention d'un pliage en trois d'un document apparaissent successivement dans les figures numérotées de 5 à 9.The different stages necessary for obtaining a document folded in three appear successively in the figures numbered from 5 to 9.

Dans la figure 5, le volet d'aiguillage 8 se trouve dans la position haute 24. On effectue la mise en route des galets 5 d'amenée de document. Le document est d'abord convoyé par un dispositif situé en amont du système de pliage et ne faisant pas partie de l'invention. Ledit document est ensuite pris en charge par les galets 5 puis introduit dans le volet d'aiguillage 8. Le microprocesseur gérant le mouvement du document par le moteur pas à pas 6 reçoit alors l'information de passage du front avant du document devant la cellule à réflexion 17. A partir de cet évènement, ledit microprocesseur pilote le moteur 6 pour que le document arrive en butée dans le couple de rouleaux 18 et 18'.In FIG. 5, the switching flap 8 is in the high position 24. The rollers 5 for feeding the document are started up. The document is first conveyed by a device located upstream of the folding system and not forming part of the invention. Said document is then taken over by the rollers 5 and then introduced into the switching flap 8. The microprocessor managing the movement of the document by the stepping motor 6 then receives the information of passage from the front edge of the document in front of the cell reflection 17. From this event, said microprocessor drives the motor 6 so that the document comes into abutment in the pair of rollers 18 and 18 '.

La figure 6 présente l'étape suivante. Le volet d'aiguillage 8 est alors basculé par le moteur 7 depuis la position haute 24 jusqu'à une position basse 25. Dès le début de cette rotation, les galets d'amenée du document 5 sont mis en route. Le document forme alors la boucle 26. C'est en agissant sur la longueur de cette boucle, donc sur le nombre de pas effectués par les rouleaux d'amenée depuis leur mise en route que l'on fait varier la longueur des plis. Lorsque la quantité de document à dévider est atteinte, le système de commande arrête la rotation du moteur 6 donc des galets 5.Figure 6 shows the next step. The switch flap 8 is then tilted by the motor 7 from the high position 24 to a low position 25. From the start of this rotation, the feed rollers of the document 5 are started. The document then forms the loop 26. It is by acting on the length of this loop, therefore on the number of steps taken by the feed rollers since they are started that the length of the folds is varied. When the quantity of document to be dispensed is reached, the control system stops the rotation of the motor 6 and therefore of the rollers 5.

La figure 7 présente l'étape suivante. Le volet d'aiguillage 8 est alors basculé par le moteur 7 depuis la position basse 25 jusqu'à une position haute 24. Les galets 14 et 14' viennent alors appliquer la boucle du document sur le rouleau 18'. On effectue ensuite la mise en route des galets 5 d'amenée de document. Ceci a pour effet la formation d'une petite boucle 27.Figure 7 shows the next step. The switching flap 8 is then tilted by the motor 7 from the low position 25 to a high position 24. The rollers 14 and 14 'then apply the document loop on the roller 18'. The document feed rollers 5 are then started up. This has effect the formation of a small loop 27.

La figure 8 présente l'étape suivante. Le moteur 6 effectue le nombre de pas garantissant une bonne mise en pression de la boucle 27 sur les rouleaux de pliage 18 et 18'. Le microprocesseur déclenche alors la rotation des rouleaux 18 et 18' par l'intermédiaire du moteur 25. La boucle 27 est ainsi laminée par le couple de rouleaux 18 et 18'.Figure 8 shows the next step. The motor 6 performs the number of steps ensuring good pressurization of the loop 27 on the folding rollers 18 and 18 '. The microprocessor then triggers the rotation of the rollers 18 and 18 'via the motor 25. The loop 27 is thus laminated by the pair of rollers 18 and 18'.

La figure 9 présente l'étape suivante. Les rouleaux 18 et 18' poursuivant leur rotation laminent ensuite la boucle 26 puis éjectent le document plié en trois vers un réceptacle situé en aval du système de pliage ne faisant pas partie de l'invention. La cellule à réflexion 17 informe le microprocesseur du passage du front arrière du document. Après un temps garantissant l'éjection complète du document plié le microprocesseur arrête la rotation des rouleaux 18, 18' et 5.Figure 9 shows the next step. The rollers 18 and 18 'continuing their rotation then laminate the loop 26 and then eject the document folded in three towards a receptacle located downstream of the folding system not forming part of the invention. The reflection cell 17 informs the microprocessor of the passage of the rear edge of the document. After a time guaranteeing the complete ejection of the folded document, the microprocessor stops the rotation of the rollers 18, 18 'and 5.

Les différentes étapes nécessaires à l'obtention d'un pliage en deux d'un document apparaissent successivement dans les figures numérotées de 10 à 14.The different steps necessary to obtain a document folded in half appear successively in the figures numbered from 10 to 14.

Dans la figure 10, le volet d'aiguillage 8 se trouve dans la position basse 25. On effectue la mise en route des galets 5 d'amenée de document. Le document est d'abord convoyé par un dispositif situé en amont du système de pliage et ne faisant pas partie de l'invention. Ledit document est ensuite pris en charge par les galets 5 puis introduit dans le volet d'aiguillage 8.In FIG. 10, the switch flap 8 is in the low position 25. The rollers 5 for feeding the document are started up. The document is first conveyed by a device located upstream of the folding system and not forming part of the invention. Said document is then taken over by the rollers 5 and then introduced into the switching flap 8.

Dans la figure 11, le microprocesseur gérant le mouvement du document par le moteur pas à pas 6 reçoit alors l'information de passage du front avant du document devant la cellule à réflexion 17. A partir de cet évènement, ledit microprocesseur pilote le moteur 6 pour que les galets 5 dévident la longueur de document nécessaire. C'est en effet cette longueur de document dévidé qui conditionne la longueur des plis.In FIG. 11, the microprocessor managing the movement of the document by the stepping motor 6 then receives the passage information from the front edge of the document in front of the reflection cell 17. From this event, said microprocessor controls the motor 6 so that the rollers 5 unwind the required document length. It is indeed this length of document unwound which conditions the length of the folds.

La figure 12 présente l'étape suivante. Le volet d'aiguillage 8 est alors basculé par le moteur 7 depuis la position basse 25 jusqu'à une position haute 24. Les galets 14 et 14' viennent alors appliquer le document sur le rouleau 18'. On effectue ensuite la mise en route des galets 5 d'amenée de document. Ceci a pour effet la formation d'une petite boucle 27.Figure 12 shows the next step. The switch flap 8 is then tilted by the motor 7 from the low position 25 to a high position 24. The rollers 14 and 14 'then apply the document to the roller 18'. The document feed rollers 5 are then started up. This has the effect of forming a small loop 27.

La figure 13 présente l'étape suivante. Le moteur 6 effectue le nombre de pas garantissant une bonne mise en pression de la boucle 26 sur les rouleaux de pliage 18 et 18'. Le microprocesseur déclenche alors la rotation 18 et 18' par l'intermédiaire du moteur 13. La boucle 27 est ainsi laminée par le couple de rouleaux 18 et 18'.Figure 13 shows the next step. The motor 6 performs the number of steps ensuring good pressurization of the loop 26 on the folding rollers 18 and 18 '. The microprocessor then initiates rotation 18 and 18 'via the motor 13. The loop 27 is thus laminated by the pair of rollers 18 and 18'.

La figure 14 présente l'étape terminale : les rouleaux 18 et 18' poursuivent leur rotation puis éjectent le document plié en deux vers un réceptacle situé en aval du système de pliage ne faisant pas partie de l 'invention. La cellule à réflexion 17 informe le microprocesseur du passage du front arrière du document. Après un temps garantissant l'éjection complète du document plié le microprocesseur arrête la rotation des rouleaux 18, 18' et 5.FIG. 14 shows the final step: the rollers 18 and 18 ′ continue their rotation then eject the document folded in half towards a receptacle situated downstream from the folding system which is not part of the invention. The reflection cell 17 informs the microprocessor of the passage of the rear edge of the document. After a time guaranteeing the complete ejection of the folded document, the microprocessor stops the rotation of the rollers 18, 18 'and 5.

Claims (3)

  1. Folding machine of the type comprising two input rollers (5) for feeding the paper, driven by first movement control means (6), two output rollers (18, 18') for discharging the paper controlled by second movement control means (20), a paper guide (8) pivotally mounted between the input rollers (5) and the output rollers (18, 18'), capable of assuming a first and a second position (24, resp. 25), the guide (8) in its first position (24) directing the paper from the input rollers (5) to the output rollers (18, 18'), and, in its second position (25), directing the paper from the input rollers (5) to a region spaced from the output rollers (18, 18'), a press roller (14, 14') capable of being applied against one of the two output rollers (18, 18'), and an electronic control unit for synchronizing and controlling the pivoting of the guide (8) and the movement of the input and output rollers,
       characterized in that
    the pivotal paper guide (8) comprises, connected to move therewith, said press roller (14, 14') capable, when the guide is in the first position (24), of coming to be applied against one (18') of the two output rollers (18, 18'), and the first and second control means and the control unit are coordinated to carry out the following steps :
    c) passage of the guide (8) to the second position (25)
    d) forward driving of the input rollers (5) for advancing the paper through the guide (8) by a first predetermined length
    e) passage of the guide (8) to the first position
    f) forward driving of the input rollers (5) for advancing the paper through the guide (8) by a second predetermined length and forming an initial portion of a loop (27) directed toward the output rollers (18, 18')
    g) forward driving of the output rollers (18, 18') for seizing the initial portion of the loop (27) and driving the remainder of the paper.
  2. Folding machine according to claim 1, characterized in that the first and second control means and the control unit are coordinated for carrying out, before the steps c) to g), the following steps :
    a) passage of the guide (8) to the first position (24)
    b) forward driving of the input rollers (5) for advancing the paper through the guide by a third predetermined length sufficient to ensure that the front edge of the paper is seized in the output rollers
    the subsequent forward driving of the input rollers (5) having for effect to form an initial portion of a loop (26) moving away from the input rollers (5) and output rollers (18, 18').
  3. Folding machine according to either one of the claims 1 and 2, characterized in that the guide (8) comprises a paper detecting cell (17).
EP94400827A 1993-05-03 1994-04-15 Folding device for documents with a pivotable guide Expired - Lifetime EP0623543B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9305244A FR2704846B1 (en) 1993-05-03 1993-05-03 FOLDING DOCUMENT FOLDER.
FR9305244 1993-05-03

Publications (2)

Publication Number Publication Date
EP0623543A1 EP0623543A1 (en) 1994-11-09
EP0623543B1 true EP0623543B1 (en) 1997-03-12

Family

ID=9446687

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94400827A Expired - Lifetime EP0623543B1 (en) 1993-05-03 1994-04-15 Folding device for documents with a pivotable guide

Country Status (5)

Country Link
US (1) US5490829A (en)
EP (1) EP0623543B1 (en)
CA (1) CA2122671C (en)
DE (1) DE69401976T2 (en)
FR (1) FR2704846B1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU4863897A (en) * 1996-11-18 1998-06-10 Schouw Electronics A/S Method and apparatus for pre-folding or folding of carton blanks, in particular packaging items
DE19837238A1 (en) * 1998-08-17 2000-02-24 Bruno A Weber Apparatus for folding a sheet of paper into a loop which is folded, using least two rollers
GB2397816B (en) 2002-12-20 2005-03-16 Pfe Internat Ltd Document folding apparatus
NL1027939C2 (en) * 2004-12-31 2006-07-03 Neopost Sa Method and device for folding sheets of paper.
EP2921444B1 (en) * 2014-03-18 2020-02-05 Ricoh Company, Ltd. Image forming system comprising a sheet processing apparatus
JP7312987B2 (en) * 2019-11-26 2023-07-24 デュプロ精工株式会社 paper folding device

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Publication number Priority date Publication date Assignee Title
US2997295A (en) * 1958-11-24 1961-08-22 Liberty Folder Company Buckle type folding machine
NL7204777A (en) * 1972-04-10 1973-10-12
US4202621A (en) * 1977-06-03 1980-05-13 Canon Kabushiki Kaisha Recording device
DE2757182C2 (en) * 1977-12-22 1983-09-29 Mathias Bäuerle GmbH, 7742 St Georgen Buckle folder
EP0056022A1 (en) * 1980-03-31 1982-07-21 HARPER & TUNSTALL LIMITED Zig-zag folding machines
EP0059357B1 (en) * 1981-02-26 1985-09-25 Hasler AG Folder
WO1984000350A1 (en) * 1982-07-06 1984-02-02 Hasler Ag Bending device
JPS60223766A (en) * 1984-04-17 1985-11-08 Fuji Xerox Co Ltd Paper-sheet inverting and folding apparatus
JPH0694332B2 (en) * 1986-06-19 1994-11-24 株式会社サン精機製作所 Sheet folding device
JPH0641345B2 (en) * 1986-11-26 1994-06-01 株式会社サン精機製作所 Sheet folding device
NL8702456A (en) * 1987-10-14 1989-05-01 Hadewe Bv METHOD AND APPARATUS FOR FOLDING FOLDING, SUCH AS DOCUMENTS, WHICH MAY HAVE DIFFERENT QUALITY AND LENGTH AND COLLECTED IN A PACKAGE THEN CONTAINED IN CONSEQUENCE.
US4997175A (en) * 1989-05-23 1991-03-05 Sun Seiki Co., Ltd. Sheet folding apparatus
NL8902476A (en) * 1989-10-05 1991-05-01 Hadewe Bv METHOD AND DEVICE FOR FOLDING SHEETS.
FR2668459B1 (en) * 1990-10-31 1992-12-24 Alcatel Satmam POCKET FOLDER, THREE PARTS.
US5129876A (en) * 1991-03-01 1992-07-14 Profold, Inc. Fold roller

Also Published As

Publication number Publication date
US5490829A (en) 1996-02-13
FR2704846B1 (en) 1995-07-13
CA2122671C (en) 2004-08-17
CA2122671A1 (en) 1994-11-04
DE69401976T2 (en) 1998-01-02
FR2704846A1 (en) 1994-11-10
EP0623543A1 (en) 1994-11-09
DE69401976D1 (en) 1997-04-17

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