EP0571281A1 - Pressure sealing apparatus for business forms - Google Patents

Pressure sealing apparatus for business forms Download PDF

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Publication number
EP0571281A1
EP0571281A1 EP93401287A EP93401287A EP0571281A1 EP 0571281 A1 EP0571281 A1 EP 0571281A1 EP 93401287 A EP93401287 A EP 93401287A EP 93401287 A EP93401287 A EP 93401287A EP 0571281 A1 EP0571281 A1 EP 0571281A1
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EP
European Patent Office
Prior art keywords
elements
pressure
machine
machine according
articles
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Granted
Application number
EP93401287A
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German (de)
French (fr)
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EP0571281B1 (en
Inventor
André Zeller
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Danel Ferry SA
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Danel Ferry SA
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Publication of EP0571281A1 publication Critical patent/EP0571281A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43M—BUREAU ACCESSORIES NOT OTHERWISE PROVIDED FOR
    • B43M5/00—Devices for closing envelopes
    • B43M5/04—Devices for closing envelopes automatic
    • B43M5/047—Devices for closing envelopes automatic using pressure-sensitive adhesive

Definitions

  • the invention relates to a pressure sealing machine for correspondence articles.
  • each panel of the screen constituting an item of postal correspondence, sealed for manufacture, for example of the type commonly known by the English term "mailers", or to be sealed after folding, of the letter card or other type. such as simple prints.
  • thermo-adhesive means it is different for printers which generate heat and which are more and more widespread (laser printer or other).
  • the inventor has found an effective means which makes it possible in part to reduce the pressure necessary while ensuring excellent sealing and which also makes it possible to simplify the machine.
  • the invention provides a pressure sealing machine for correspondence articles provided with various zones coated with an adhesive substance sensitive to pressure, conventionally comprising at least one pair of pressing elements rotating in opposite directions and between which pass at least the areas to seal articles, applied against each other, but which is remarkable in that the drive of the pressing elements is arranged in such a way that their tangential speeds, at the place of their contact with the articles, are different so as to exert on said sealing zones a pressure combined with friction.
  • Such a machine may in particular thus have only one pair of pressing elements, but this is obviously in no way limiting.
  • the two elements of the pair of pressing elements are rotated but in such a way that their tangential peripheral speeds are different.
  • the pressing elements have identical diameters and are driven at different speeds of rotation or else the pressing elements have different diameters and are driven at identical or different speeds of rotation.
  • only one of the elements of the pair of pressing elements is motor, the other element being driven by the contact pressure, while the non-motor pressing element is further braked by a system.
  • the braking of the non-motor pressing element is, for example, obtained by an electromagnetic system.
  • each element of the pair of pressing elements is in the form of a cylinder.
  • each element of the pair of pressing elements is in the form of at least one roller providing free spaces so that these spaces do not transmit any pressure.
  • an embodiment according to the invention is remarkable in that it is combined with a similar machine arranged perpendicularly while a device for transferring from one to the other and for reference to 90 ° is provided to allow sealing in separate areas perpendicular to each other.
  • a machine according to the invention can of course be combined with other means and in particular with a device for feeding the articles and a folder arranged upstream of said machine in order to receive the folded articles to be sealed.
  • a motor is provided for driving in rotation at least one of the pressing elements, while itself is coupled to one of the rotating elements of the folder, this or another rotating element of the folder and a rotating element of the feed device also being coupled so that a single motor can drive the assembly.
  • FIG. 1 schematically shows a sealing machine 1 according to the invention, combined with a folding or folding device 2 and a feeding device 3 for the articles to be sealed.
  • the device 3 for supplying the articles can be of the sheet-by-sheet type or comprise a continuous supply combined with a breaker.
  • the folder 2 arranged between the feed device 3 and the sealing machine 1 is, for example, intended to make two or four pockets.
  • the sealing machine comprises a pair of pressing elements 4a and 4b mounted to rotate.
  • the pressing elements 4a, 4b are, for example, constituted by rollers or cylinders such as those shown in FIG. 2, or according to a variant, each of them can be constituted by at least one roller as in the embodiment pressing elements 4'a, 4'b and 5'a of Figures 3 and 4, for reasons which will be explained below.
  • a single cylinder (here 4b) is motor while the other cylinder 4a is mounted free in rotation so that they rotate in opposite directions.
  • the cylinder 4b is, for example, driven by means of a pulley 6 ( Figure 2) of which it is integral and which is engaged with a belt 7, itself driven by a motor 8 ( Figure 1).
  • One of the advantages of this structure is that it can drive the sealing machine 1, the folder 2 and the feed device 3 by the single motor 8.
  • one of the rotating elements of the folder for example the roller 9 of FIG. 1
  • the cylinder 4b for example here by means of a double intermediate pulley 10 and two belts 11 and 12 respectively engaged with said cylinder 4b and said roller 9, while the same rotating element of the folder, or another such as the roller 13, is engaged with a belt 14 and a rotating element 15 of the supply device 3.
  • Figure 2 shows a simple way to mount the cylinders 4a, 4b using rolling bearings (ball, needle or otherwise) 16, 16 'and 17, 17'.
  • the circuit of the articles to be sealed is provided so that these pass between the cylinders 4a and 4b and these are mounted so as to exert a certain contact pressure between them, possibly modifiable, for example by means of adjusting the 'center distance of said cylinders.
  • the cylinder 4a comprises a magnetic braking system 18 provided with two induction coils 19 and 20, the coil 19 being, for example, on the axis of the cylinder 4a and cooperating with the actual braking coil 20.
  • the braking system may also in some cases not be used.
  • the two cylinders can be motors (possibly with a single motor and a drive link by belts, gears or the like), said cylinders, as already said, for example having the same diameter and being driven at different speeds of rotation or having different diameters and being driven at similar or different speeds of rotation.
  • the ratio of the tangential speeds of the cylinders can be, for example, 0.975.
  • each pressing element 4'a or 4'b is constituted by at least one roller 21a, 22a and respectively 21b, 22b.
  • FIG. 4 represents a machine 1A of which only one pressing element 4 ′ a and another can be seen.
  • a folding machine, etc. may be provided, as described above.
  • a device 23 for transfer and return at 90 ° is arranged.
  • the device 23 comprises, for example, a conveyor belt 24 and a rectifier 25.

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  • Package Closures (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)

Abstract

The invention relates to a pressure sealing apparatus (1) for envelopes and suchlike articles provided with various areas coated with a pressure-sensitive adhesive substance, which apparatus comprises at least a pair of oppositely-rotating pressure elements (4a, 4b) between which there pass at least those areas of the articles which are to be sealed, having been previously applied against each other. This apparatus is distinguished by the fact that the driving of the pressure elements is so arranged that their tangential speeds at the point where they contact the articles are different, with the result that they exert on the said areas to be sealed a combined pressing and rubbing action. At least one (4b) of the elements of the pair of pressure elements is a drive element, while the other (4a) may also be a drive element or may be driven by the pressure of contact, in which case a braking system is provided. <IMAGE>

Description

L'invention concerne une machine de scellement par pression pour articles de correspondance.The invention relates to a pressure sealing machine for correspondence articles.

Pour faciliter le traitement des formulaires de bureau et autres imprimés destinés à la correspondance de masse, il existe divers types d'assemblages continus destinés à passer dans une machine imprimante.To facilitate the processing of office forms and other forms for mass correspondence, there are various types of continuous assemblies intended for passing through a printing machine.

Ces assemblages peuvent se présenter pliés en paravent, chaque panneau du paravent constituant un article de correspondance postale, scellé de fabrication par exemple du type communément désigné sous le vocable anglais "mailers", ou à sceller après pliage, du type cartes-lettres ou autres tels de que simples imprimés.These assemblies can be folded in a screen, each panel of the screen constituting an item of postal correspondence, sealed for manufacture, for example of the type commonly known by the English term "mailers", or to be sealed after folding, of the letter card or other type. such as simple prints.

Quel que soit le type d'articles, plusieurs systèmes de scellement peuvent être utilisés, moyens autocollants, thermo-collants ou autrement activables, adhésifs transférables ("colomètre"), etc...Whatever the type of article, several sealing systems can be used, self-adhesive, heat-adhesive or otherwise activatable, transferable adhesives ("colometer"), etc.

Or, si l'utilisation d'une imprimante classique à frappe, (indispensable notamment pour les "mailers" dont les divers documents sont imprimés par transfert après scellement) permet d'utiliser des moyens thermo-collants, il en est autrement pour les imprimantes qui dégagent de la chaleur et qui sont de plus en plus répandues (imprimante à laser ou autre).However, if the use of a conventional typing printer (essential in particular for "mailers" whose various documents are printed by transfer after sealing) allows the use of thermo-adhesive means, it is different for printers which generate heat and which are more and more widespread (laser printer or other).

C'est notamment pourquoi on a cherché des adhésifs sensibles à la pression pour un scellement dit à froid. Avec de tels adhésifs il suffit d'appliquer une zone enduite du document ou de l'article sur une autre zone vierge ou enduite et d'exercer une pression.This is especially why we looked for pressure sensitive adhesives for a so-called cold sealing. With such adhesives, it suffices to apply a coated area of the document or article to another blank or coated area and to apply pressure.

Pour effectuer ce type de scellement, on a bien sûr imaginé des machines qui comportent toutes plusieurs paires de cylindres ou rouleaux entre lesquels passent les articles à sceller.To perform this type of sealing, we have of course imagined machines which all have several pairs of cylinders or rollers between which pass the articles to be sealed.

On a en effet toujours cherché à exercer un maximum de pression pour atteindre l'effet recherché et c'est pourquoi on utilise généralement plusieurs paires successives de rouleaux.We have always sought to exert maximum pressure to achieve the desired effect and this is why we generally use several successive pairs of rollers.

Toutefois, une pression excessive peut s'avérer dans certains cas très gênante, par exemple si l'on utilise des éléments de reproduction (carbone) ou autoreproducteur (papiers dits chimiques) ou encore en cas de présence d'objets à ne pas trop écraser...However, excessive pressure can prove to be very annoying in certain cases, for example if one uses elements of reproduction (carbon) or self-reproducing (so-called chemical papers) or even in the presence of objects not to be crushed too much ...

L'inventeur a trouvé un moyen efficace qui permet en partie de réduire la pression nécessaire tout en assurant un excellent scellement et qui permet aussi de simplifier la machine.The inventor has found an effective means which makes it possible in part to reduce the pressure necessary while ensuring excellent sealing and which also makes it possible to simplify the machine.

C'est ainsi que l'invention propose une machine de scellement par pression pour articles de correspondance pourvus de diverses zones enduites d'une substance adhésive sensible à la pression, comportant classiquement au moins une paire d'éléments presseurs tournant en sens inverse et entre lesquels passent au moins les zones à sceller des articles, appliquées les unes contre les autres, mais qui est remarquable en ce que l'entraînement des éléments presseurs est aménagé de manière telle que leurs vitesses tangentielles, à l'endroit de leur contact avec les articles, sont différentes de façon à exercer sur lesdites zones à sceller une pression combinée à un frottement.Thus, the invention provides a pressure sealing machine for correspondence articles provided with various zones coated with an adhesive substance sensitive to pressure, conventionally comprising at least one pair of pressing elements rotating in opposite directions and between which pass at least the areas to seal articles, applied against each other, but which is remarkable in that the drive of the pressing elements is arranged in such a way that their tangential speeds, at the place of their contact with the articles, are different so as to exert on said sealing zones a pressure combined with friction.

Une telle machine peut notamment ainsi ne comporter qu'une seule paire d'éléments presseurs, mais cela n'est évidemment nullement limitatif.Such a machine may in particular thus have only one pair of pressing elements, but this is obviously in no way limiting.

Pour obtenir ce résultat, selon un mode de réalisation, les deux éléments de la paire d'éléments presseurs sont entraînés en rotation mais de manière que leurs vitesses tangentielles périphériques soient différentes.To obtain this result, according to one embodiment, the two elements of the pair of pressing elements are rotated but in such a way that their tangential peripheral speeds are different.

Dans ce cas, par exemple, les éléments presseurs présentent des diamètres identiques et sont entraînés à des vitesses de rotation différentes ou encore les éléments presseurs présentent des diamètres différents et sont entraînés à des vitesses de rotation identiques ou différentes.In this case, for example, the pressing elements have identical diameters and are driven at different speeds of rotation or else the pressing elements have different diameters and are driven at identical or different speeds of rotation.

Toutefois, selon un autre mode de réalisation, un seul des éléments de la paire d'éléments presseurs est moteur, l'autre élément étant entraîné par la pression de contact, tandis que l'élément presseur non moteur est en outre freiné par un système. Le freinage de l'élément presseur non moteur est, par exemple, obtenu par un système électromagnétique.However, according to another embodiment, only one of the elements of the pair of pressing elements is motor, the other element being driven by the contact pressure, while the non-motor pressing element is further braked by a system. . The braking of the non-motor pressing element is, for example, obtained by an electromagnetic system.

Selon un mode de réalisation, chaque élément de la paire d'éléments presseurs se présente sous la forme d'un cylindre.According to one embodiment, each element of the pair of pressing elements is in the form of a cylinder.

Cependant, selon un autre mode de réalisation, chaque élément de la paire d'éléments presseurs se présente sous la forme d'au moins un galet ménageant des espaces libres de telle sorte que ces espaces ne transmettent aucune pression.However, according to another embodiment, each element of the pair of pressing elements is in the form of at least one roller providing free spaces so that these spaces do not transmit any pressure.

Cette disposition peut paraître avantageuse lorsque l'on désire épargner certaines zones de toute pression.This arrangement may seem advantageous when it is desired to spare certain zones of any pressure.

Avec la disposition précitée et pour une application particulière, un mode de réalisation selon l'invention est remarquable en ce qu'elle est combinée avec une machine semblable disposée perpendiculairement tandis qu'un dispositif de transfert de l'une à l'autre et de renvoi à 90° est prévu afin de permettre un scellement selon des zones distinctes perpendiculaires entre elles.With the above arrangement and for a particular application, an embodiment according to the invention is remarkable in that it is combined with a similar machine arranged perpendicularly while a device for transferring from one to the other and for reference to 90 ° is provided to allow sealing in separate areas perpendicular to each other.

Une machine selon l'invention peut bien sûr se combiner avec d'autres moyens et notamment avec un dispositif d'alimentation des articles et une plieuse disposés en amont de ladite machine afin de recevoir les articles pliés à sceller.A machine according to the invention can of course be combined with other means and in particular with a device for feeding the articles and a folder arranged upstream of said machine in order to receive the folded articles to be sealed.

Dans ce cas et selon un mode de réalisation tout à fait intéressant par rapport à l'art connu qui réclame plusieurs moteurs, un moteur est prévu pour entraîner en rotation au moins l'un des éléments presseurs, tandis que lui-même est accouplé à l'un des éléments tournants de la plieuse, celui-ci ou un autre élément tournant de la plieuse et un élément tournant du dispositif d'alimentation étant aussi accouplés de telle sorte qu'un seul moteur permet d'entraîner l'ensemble.In this case and according to an entirely advantageous embodiment compared to the known art which requires several motors, a motor is provided for driving in rotation at least one of the pressing elements, while itself is coupled to one of the rotating elements of the folder, this or another rotating element of the folder and a rotating element of the feed device also being coupled so that a single motor can drive the assembly.

L'invention sera bien comprise et d'autres particularités apparaîtront à la lecture de la description qui va suivre et qui se réfère aux dessins annexés dans lesquels:

  • la figure 1 est une vue schématique en élévation d'une machine selon l'invention, combinée avec d'autres dispositifs aménagés en amont.
  • la figure 2 montre en coupe partielle un mode de réalisation selon l'invention,
  • la figure 3 montre deux éléments presseurs selon un autre mode de réalisation,
  • la figure 4 schématise deux machines selon l'invention disposées perpendiculairement entre elles et entre lesquelles est prévu un dispositif de transfert et de renvoi à 90°.
The invention will be clearly understood and other particularities will appear on reading the description which follows and which refers to the appended drawings in which:
  • Figure 1 is a schematic elevational view of a machine according to the invention, combined with other devices arranged upstream.
  • FIG. 2 shows in partial section an embodiment according to the invention,
  • FIG. 3 shows two pressing elements according to another embodiment,
  • Figure 4 shows schematically two machines according to the invention arranged perpendicularly to each other and between which is provided a transfer and return device at 90 °.

La figure 1 montre schématiquement une machine de scellement 1 selon l'invention, combinée avec un dispositif de pliage ou plieuse 2 et un dispositif d'alimentation 3 des articles à sceller.FIG. 1 schematically shows a sealing machine 1 according to the invention, combined with a folding or folding device 2 and a feeding device 3 for the articles to be sealed.

Le dispositif d'alimentation 3 des articles peut être du type feuille à feuille ou comporter une alimentation en continu combinée avec un rupteur.The device 3 for supplying the articles can be of the sheet-by-sheet type or comprise a continuous supply combined with a breaker.

La plieuse 2 aménagée entre le dispositif d'alimentation 3 et la machine de scellement 1 est, par exemple, destinée à réaliser deux ou quatre poches.The folder 2 arranged between the feed device 3 and the sealing machine 1 is, for example, intended to make two or four pockets.

La machine de scellement comporte une paire d'éléments presseurs 4a et 4b montés rotatifs.The sealing machine comprises a pair of pressing elements 4a and 4b mounted to rotate.

Les éléments presseurs 4a, 4b sont, par exemple, constitués par des rouleaux ou cylindres tels que ceux représentés sur la figure 2, ou selon une variante, chacun d'entre eux peut être constitué par au moins un galet comme dans le mode de réalisation des éléments presseurs 4'a, 4'b et 5'a des figures 3 et 4, pour des raisons qui seront expliquées ci-après.The pressing elements 4a, 4b are, for example, constituted by rollers or cylinders such as those shown in FIG. 2, or according to a variant, each of them can be constituted by at least one roller as in the embodiment pressing elements 4'a, 4'b and 5'a of Figures 3 and 4, for reasons which will be explained below.

Dans le mode de réalisation représenté sur les figures 1 et 2, un seul cylindre (ici 4b) est moteur tandis que l'autre cylindre 4a est monté libre en rotation de telle sorte qu'ils tournent en sens inverse.In the embodiment shown in Figures 1 and 2, a single cylinder (here 4b) is motor while the other cylinder 4a is mounted free in rotation so that they rotate in opposite directions.

Le cylindre 4b est, par exemple, entraîné au moyen d'une poulie 6 (figure 2) dont il est solidaire et qui est en prise avec une courroie 7, elle-même entraînée par un moteur 8 (figure 1).The cylinder 4b is, for example, driven by means of a pulley 6 (Figure 2) of which it is integral and which is engaged with a belt 7, itself driven by a motor 8 (Figure 1).

L'un des avantages de cette structure est de pouvoir entraîner la machine de scellement 1, la plieuse 2 et le dispositif d'alimentation 3 par le seul moteur 8.One of the advantages of this structure is that it can drive the sealing machine 1, the folder 2 and the feed device 3 by the single motor 8.

En effet, il suffit pour ce faire que l'un des éléments tournants de la plieuse 2, par exemple le rouleau 9 de la figure 1, soit entraîné par le cylindre 4b, par exemple ici par l'intermédiaire d'une double poulie intermédiaire 10 et de deux courroies 11 et 12 en prise respectivement avec ledit cylindre 4b et ledit rouleau 9, tandis que le même élément tournant de la plieuse, ou un autre tel que le rouleau 13, est en prise avec une courroie 14 et un élément tournant 15 du dispositif d'alimentation 3.Indeed, it suffices to do this that one of the rotating elements of the folder 2, for example the roller 9 of FIG. 1, is driven by the cylinder 4b, for example here by means of a double intermediate pulley 10 and two belts 11 and 12 respectively engaged with said cylinder 4b and said roller 9, while the same rotating element of the folder, or another such as the roller 13, is engaged with a belt 14 and a rotating element 15 of the supply device 3.

La figure 2 montre une manière simple de monter les cylindres 4a, 4b à l'aide de paliers à roulement (à billes, aiguilles ou autrement) 16, 16' et 17, 17'.Figure 2 shows a simple way to mount the cylinders 4a, 4b using rolling bearings (ball, needle or otherwise) 16, 16 'and 17, 17'.

Le circuit des articles à sceller est prévu pour que ceux-ci passent entre les cylindres 4a et 4b et ceux-ci sont montés de manière à exercer une certaine pression de contact entre eux, éventuellement modifiable, par exemple par un moyen de réglage de l'entraxe desdits cylindres.The circuit of the articles to be sealed is provided so that these pass between the cylinders 4a and 4b and these are mounted so as to exert a certain contact pressure between them, possibly modifiable, for example by means of adjusting the 'center distance of said cylinders.

Selon le mode de réalisation représenté de l'invention, le cylindre 4a, comporte un système de freinage magnétique 18 muni de deux bobines d'induction 19 et 20, la bobine 19 étant, par exemple, sur l'axe du cylindre 4a et coopèrant avec la bobine 20 de freinage proprement dite.According to the illustrated embodiment of the invention, the cylinder 4a comprises a magnetic braking system 18 provided with two induction coils 19 and 20, the coil 19 being, for example, on the axis of the cylinder 4a and cooperating with the actual braking coil 20.

On peut de la sorte faire varier à volonté la vitesse de rotation du cylindre 4a par freinage en agissant sur la bobine 20.In this way, the speed of rotation of the cylinder 4a can be varied at will by braking by acting on the coil 20.

En ralentissant ainsi un cylindre par rapport à l'autre, on obtient nécessairement un frottement qui, selon la découverte de l'inventeur, améliore le scellement (à pressions égales).By thus slowing down one cylinder with respect to the other, one necessarily obtains a friction which, according to the discovery of the inventor, improves the sealing (at equal pressures).

Le système de freinage peut d'ailleurs dans certains cas ne pas être utilisé.The braking system may also in some cases not be used.

Il est clair aussi qu'on ne peut pas représenter tous les modes de réalisation possibles et on comprend que les deux cylindres peuvent être moteurs (éventuellement avec un seul moteur et une liaison d'entraînement par courroies, engrenages ou autres), lesdits cylindres, comme déjà dit, ayant par exemple un même diamètre et étant entraînés à des vitesses de rotation différentes ou ayant des diamètres différents et étant entraînés à des vitesses de rotation semblables ou différentes.It is also clear that it is not possible to represent all the possible embodiments and it is understood that the two cylinders can be motors (possibly with a single motor and a drive link by belts, gears or the like), said cylinders, as already said, for example having the same diameter and being driven at different speeds of rotation or having different diameters and being driven at similar or different speeds of rotation.

Le rapport des vitesses tangentielles des cylindres peut être, par exemple, de 0,975.The ratio of the tangential speeds of the cylinders can be, for example, 0.975.

On peut souhaiter épargner certaines zones et n'appliquer une pression que sur les zones à sceller, c'est-à-dire les zones enduites de substance adhésive (et les zones correspondantes non enduites au cas où l'enduction n'est effective que d'un côté).It may be desirable to spare certain zones and to apply pressure only on the zones to be sealed, that is to say the zones coated with adhesive substance (and the corresponding zones not coated in the case where the coating is effective only on the one hand).

Pour cela, l'invention propose un mode de réalisation selon la figure 3 dans lequel chaque élément presseur 4'a ou 4'b est constitué par au moins un galet 21a, 22a et respectivement 21b, 22b.For this, the invention provides an embodiment according to Figure 3 in which each pressing element 4'a or 4'b is constituted by at least one roller 21a, 22a and respectively 21b, 22b.

On comprend que l'on peut ainsi exercer une pression de manière sélective.It is understood that one can thus exert pressure selectively.

Lorsque les articles à sceller présentent des zones d'encollage dont les longueurs sont perpendiculaires entre elles, le mode de réalisation précité est avantageux.When the articles to be sealed have gluing zones whose lengths are perpendicular to each other, the abovementioned embodiment is advantageous.

En effet, dans ce cas, on peut combiner deux machines de scellement de ce type, disposées perpendiculairement entre elles, comme le montre schématiquement la figure 4 qui représente une machine 1A dont on ne voit qu'un élément presseur 4'a et une autre machine 1B dont on ne voit qu'un élément presseur 5'a.In fact, in this case, it is possible to combine two sealing machines of this type, arranged perpendicularly to one another, as shown diagrammatically in FIG. 4 which represents a machine 1A of which only one pressing element 4 ′ a and another can be seen. machine 1B of which only a pressing element 5'a is seen.

En amont de la machine 1A, peut être prévue, comme décrit ci-avant, une plieuse, etc.Upstream of the machine 1A, a folding machine, etc. may be provided, as described above.

Entre les machines 1A et 1B, est aménagé un dispositif 23 de transfert et de renvoi à 90°.Between the machines 1A and 1B, a device 23 for transfer and return at 90 ° is arranged.

Le dispositif 23 comporte, par exemple, un tapis de transport 24 et un rectificateur 25.The device 23 comprises, for example, a conveyor belt 24 and a rectifier 25.

Chaque article sort de la machine 1A dans le sens de la flèche F1 de la figure 4, tombe sur le tapis 24 qui transporte chaque article dans le sens de la flèche F2 perpendiculaire à la flèche F1 et vers la machine 1B, de telle sorte que chaque article peut être scellé selon deux directions perpendiculaires.Each article leaves the machine 1A in the direction of the arrow F1 in FIG. 4, falls on the belt 24 which transports each article in the direction of the arrow F2 perpendicular to the arrow F1 and towards the machine 1B, so that each item can be sealed in two perpendicular directions.

Des variantes peuvent être imaginées sans sortir de cadre de l'invention telles que plusieurs paires d'éléments presseurs par exemple (même si l'invention permet de n'en prévoir qu'une seule paire), des états de surface différents pour les éléments presseurs, d'autres moyens de freinage, par exemple mécanique (sabots, ...), ou autres, et on peut en outre prévoir d'autres moyens ou accessoires tels que les bacs de réception 26 (figure 1) et 26' (figure 4) pour les articles scellés....Variants can be imagined without departing from the scope of the invention such as several pairs of pressing elements for example (even if the invention makes it possible to provide only one pair), different surface conditions for the elements pressers, other braking means, for example mechanical (shoes, etc.), or the like, and other means or accessories can also be provided such as the receiving tanks 26 (FIG. 1) and 26 '( figure 4) for sealed articles ....

Claims (11)

1) Machine de scellement par pression (1) pour articles de correspondance pourvus de diverses zones enduites d'une substance adhésive sensible à la pression, machine comportant au moins une paire d'éléments presseurs (4a,4b ; 4'a,4'b) tournant en sens inverse et entre lesquels passent au moins les zones à sceller des articles, appliquées les unes contre les autres, caractérisée en ce que l'entraînement des éléments presseurs est aménagé de manière telle que leurs vitesses tangentielles, à l'endroit de leur contact avec les articles, sont différentes de façon à exercer sur lesdites zones à sceller une pression combinée à un frottement. 1) Pressure sealing machine (1) for correspondence articles provided with various zones coated with an adhesive substance sensitive to pressure, machine comprising at least one pair of pressing elements (4a, 4b; 4'a, 4 ' b) turning in opposite directions and between which at least the areas for sealing articles, applied against each other, characterized in that the drive of the pressing elements is arranged in such a way that their tangential speeds, at the place from their contact with the articles, are different so as to exert on said zones to be sealed a pressure combined with friction. 2) Machine selon la revendication 1, caractérisée en ce que les deux éléments (4a,4b) de la paire d'éléments presseurs sont entraînés en rotation mais de manière que leurs vitesses tangentielles périphériques soient différentes. 2) Machine according to claim 1, characterized in that the two elements (4a, 4b) of the pair of pressing elements are rotated but so that their tangential peripheral speeds are different. 3) Machine selon la revendication 2, caractérisée en ce que les éléments presseurs (4a,4b) présentent des diamètres identiques et sont entraînés à des vitesses de rotation différentes. 3) Machine according to claim 2, characterized in that the pressing elements (4a, 4b) have identical diameters and are driven at different rotational speeds. 4) Machine selon la revendication 2, caractérisée en ce que les éléments presseurs (4a,4b) présentent des diamètres différents et sont entraînés à des vitesses de rotation identiques ou différentes. 4) Machine according to claim 2, characterized in that the pressing elements (4a, 4b) have different diameters and are driven at identical or different speeds of rotation. 5) Machine selon la revendication 1, caractérisée en ce qu'un seul (4b) des éléments de la paire d'éléments presseurs est moteur, l'autre élément (4a) étant entraîné par la pression de contact, tandis que ledit élément presseur (4a) non moteur est en outre freiné par un système. 5) Machine according to claim 1, characterized in that only one (4b) of the elements of the pair of pressing elements is motor, the other element (4a) being driven by the contact pressure, while said pressing element (4a) non-motor is further braked by a system. 6) Machine selon la revendication 5, caractérisée en ce que le freinage de l'élément presseur non moteur est obtenu par un système électromagnétique (18). 6) Machine according to claim 5, characterized in that the braking of the non-motor pressing element is obtained by an electromagnetic system (18). 7) Machine selon l'une des revendications 1 à 6, caractérisée en ce que chaque élément de la paire d'éléments presseurs se présente sous la forme d'un cylindre (4a,4b). 7) Machine according to one of claims 1 to 6, characterized in that each element of the pair of pressing elements is in the form of a cylinder (4a, 4b). 8) Machine selon l'une des revendications 1 à 7, caractérisée en ce que chaque élément (4'a,4'b) de la paire d'éléments presseurs se présente sous la forme d'au moins un galet (21a,22a ; 21b,22b) ménageant des espaces libres de telle sorte que ces espaces ne transmettent aucune pression. 8) Machine according to one of claims 1 to 7, characterized in that each element (4'a, 4'b) of the pair of pressing elements is in the form of at least one roller (21a, 22a ; 21b, 22b) gentle free spaces so that these spaces do not transmit any pressure. 9) Machine (1A) selon la revendication 8, caractérisée en ce qu'elle est combinée avec une machine semblable (1B) disposée perpendiculairement tandis qu'un dispositif (23) de transfert de l'une à l'autre et de renvoi à 90° est prévu afin de permettre un scellement selon des zones distinctes perpendiculaires entre elles. 9) Machine (1A) according to claim 8, characterized in that it is combined with a similar machine (1B) arranged perpendicularly while a device (23) for transfer from one to the other and for return to 90 ° is provided to allow sealing in separate areas perpendicular to each other. 10) Machine selon l'une des revendications 1 à 9, caractérisée en ce qu'elle est combinée avec un dispositif d'alimentation (3) des articles et une plieuse (2) disposés en amont de ladite machine afin de recevoir les articles pliés à sceller. 10) Machine according to one of claims 1 to 9, characterized in that it is combined with a feed device (3) of the articles and a folder (2) arranged upstream of said machine in order to receive the folded articles sealing. 11) Machine selon la revendication 10, caractérisée en ce qu'un moteur (8) est prévu pour entraîner en rotation au moins l'un (4b) des éléments presseurs, tandis que lui-même est accouplé (10,11) à l'un des éléments tournants (9) de la plieuse (2), celui-ci ou un autre élément tournant (13) de la plieuse et un élément tournant (15) du dispositif d'alimentation (3) étant aussi accouplés (14) de telle sorte qu'un seul moteur (8) permet d'entraîner l'ensemble. 11) Machine according to claim 10, characterized in that a motor (8) is provided for driving in rotation at least one (4b) of the pressing elements, while itself is coupled (10,11) to the 'one of the rotating elements (9) of the folder (2), this or another rotating element (13) of the folder and a rotating element (15) of the feed device (3) also being coupled (14) so that a single motor (8) can drive the assembly.
EP93401287A 1992-05-21 1993-05-18 Pressure sealing apparatus for business forms Expired - Lifetime EP0571281B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR929206190A FR2691408B1 (en) 1992-05-21 1992-05-21 PRESSURE SEALING MACHINE FOR CORRESPONDENCE ARTICLES.
FR9206190 1992-05-21

Publications (2)

Publication Number Publication Date
EP0571281A1 true EP0571281A1 (en) 1993-11-24
EP0571281B1 EP0571281B1 (en) 1996-04-03

Family

ID=9430021

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93401287A Expired - Lifetime EP0571281B1 (en) 1992-05-21 1993-05-18 Pressure sealing apparatus for business forms

Country Status (5)

Country Link
EP (1) EP0571281B1 (en)
AT (1) ATE136261T1 (en)
DE (1) DE69302043T2 (en)
ES (1) ES2085122T3 (en)
FR (1) FR2691408B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0952007A1 (en) * 1998-04-22 1999-10-27 Daniel Haas Folding machine
GB2345024A (en) * 1998-12-23 2000-06-28 Printed Forms Equip Pressure sealing apparatus, machine and method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1503822A (en) * 1966-10-14 1967-12-01 Automatic letter folding and enveloping machine
EP0421565A2 (en) * 1989-10-06 1991-04-10 Moore Business Forms, Inc. Pressure seal adhesive system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1503822A (en) * 1966-10-14 1967-12-01 Automatic letter folding and enveloping machine
EP0421565A2 (en) * 1989-10-06 1991-04-10 Moore Business Forms, Inc. Pressure seal adhesive system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0952007A1 (en) * 1998-04-22 1999-10-27 Daniel Haas Folding machine
GB2345024A (en) * 1998-12-23 2000-06-28 Printed Forms Equip Pressure sealing apparatus, machine and method
GB2345024B (en) * 1998-12-23 2003-01-08 Printed Forms Equip Apparatus, and methods for pressure sealing

Also Published As

Publication number Publication date
DE69302043D1 (en) 1996-05-09
ES2085122T3 (en) 1996-05-16
ATE136261T1 (en) 1996-04-15
FR2691408B1 (en) 1994-07-01
EP0571281B1 (en) 1996-04-03
DE69302043T2 (en) 1996-08-29
FR2691408A1 (en) 1993-11-26

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