FR2940260A1 - Articles e.g. flat folded polymeric synthetic material films, bundles treating device for packing bags, has surface treatment unit performing surface treatment in articles after folding articles by deleaver in position of pile of bundle - Google Patents

Abstract

The device has a maintenance device maintaining a bundle (4) in a reception site (2) with respect to a frame (1) of a binding end. A gripping body (11) of a deleaver cooperates with a portion opposite to the binding end of a free face of articles in a position of a residual pile of the bundle, where the deleaver drives the body and the articles along displacement to fold the articles around a folding axis with respect to binding device. A surface treatment unit (16) performs surface treatment in the articles after folding the articles by the deleaver in the position of the pile of the bundle.

Description

DEVICE FOR TREATING AT LEAST ONE FLEXIBLE ARTICLES WITH AT LEAST ONE DELEASER

The invention relates to a device for processing bundles of articles in the general form of flexible sheets (for example packaging bags or other films of polymer plastic folded flat), stacked and connected to each other by a device of the invention. binding in the vicinity of one end of the bundle, said binding end. In various applications, particularly in the field of packaging, flexible articles are stacked in bundles. In certain situations, it is useful to be able to perform an individual treatment of each article of a bundle, without having to undo the bundle, that is to say by allowing to find the bundle correctly formed after individual treatment of each article. This is the case, for example, of folded plastic polymer packaging bags which are supplied by the manufacturers in preformed bundles, but must be able to be the subject of a specific individual treatment for each use, for example for the application of commercial and / or technical information (barcodes or other optical reading codes, identification of a manufacturer or a category of packaged articles, etc.) by printing and / or labeling (s) . Until now, this individual processing is done manually by an operator who flips the package and manually performs the treatment on each item. This approach is time-consuming, labor-intensive and prevents the integration of this individual processing of items into a high-speed automated production line. Indeed, the mechanization and automation of such a treatment poses significant difficulties, which seem insurmountable and in any case not compatible with an exploitation on an industrial scale, considering in particular the investments which they would imply to obtain a quality acceptable treatment. This is particularly the case for articles which are packaging bags made of polymeric synthetic material (for example polyethylene) which, when they are in bundles, are extremely difficult to handle individually because of their flexibility, their fragility , and static electricity. Accordingly, the invention is therefore generally aimed at solving this problem. In particular, the invention aims at providing a device for treating at least one set of flexible articles making it possible automatically and mechanically to treat each article of the bundle individually, and producing a bundle of articles thus treated. . The invention also aims to provide such a device which is simple, low cost, and can be designed to operate at a very high rate, in particular compatible with its integration into a continuous industrial line, for example. example a packaging line. To this end, the invention relates to a device for treating at least one bundle of articles in the general form of flexible sheets stacked and connected to one another by a binding device in the vicinity of one of the ends of the bundle, said end of binding, characterized in that it comprises: a frame, at least a receiving location of a bundle of articles, a holding device relative to the frame of the binding end a bundle disposed in a receiving location, at least one motorized mobile unit, said déliasseur, capable of flipping a bundle arranged in a receiving location in the form of an initial pile of articles superposed, said said deliasseur comprising at least one gripping member adapted to cooperate with a portion opposite to the binding end of the free surface of an article in first position of the residual pile of the bundle, wherein said deliasseur is adapted é to drive each gripping member 3, and therefore individually said article with which it cooperates, according to a displacement adapted to fold said article about a fold axis relative to the binding device, to flip the bundle while maintaining and preserving its binding, at least one processing unit adapted to apply a treatment to an article presented, after folding of an article by said deliasseur, in first position of the residual pile of a bundle disposed in the receiving location . A device according to the invention thus makes it possible to flick a bundle of articles by individually and successively folding each article of the bundle around the fold axis (at least substantially parallel to the binding). After folding each article, a new article is released in the first position of the residual pile, and can therefore be individually treated by a processing unit, in particular a surface treatment. Advantageously and according to the invention, the device further comprises at least one surface treatment unit able to apply a surface treatment on the free surface of an article in first position of the residual pile of a bundle disposed in the receiving location. Such a surface treatment is in particular chosen from an information printing and / or the laying of at least one label. Thus, in an advantageous variant of the invention, at least one surface treatment unit is adapted to apply a label to said free surface. In this variant, advantageously and according to the invention, said surface treatment unit comprises a label printing station, and a label installation mechanism.

Furthermore, advantageously and according to the invention, said deliasseur is adapted for, in a folding stroke of an article, driving each gripping member between a gripping position in which it comes into contact with the free surface of an article located in the first position of the residual pile of the bundle, and a folding position of an article about the folding axis, opposite said gripping position, and for imposing during a first part of the stroke of folding, a first moving speed V 1 from the gripping position, then in at least a second subsequent portion of the folding stroke, at least a second moving speed V 2 of value greater than the first speed V 1. In particular, the speed profile makes it possible to take off easily the article in the first position from the immediately adjacent article on the residual pile, particularly in the case where the articles are made of polymeric ynthetics and subject to the development of static electricity between them.

In addition, advantageously and according to the invention, said deliasseur is adapted to impose an acceleration of displacement at the end of folding stroke.

Such an acceleration, preferably short and pulse, facilitates in particular the release of the article and its dissociation of each gripping member before the latter begins its return travel to a gripping position of a new item .

Furthermore, preferably, said deliasseur comprises at least one motor device and a control unit of the motor device adapted to be able to control the drive movement of each gripping member successively between: an intermediate position waiting for each member of remotely gripping the free surface of a stack of maximum thickness present in the receiving location, at a gripping position in which each gripping member engages the free surface of an article located in first position of the residual pile of the bundle, at a folding position of an article about the fold axis, opposite said gripping position.

The deliasseur of a device on the invention may be the subject of different embodiments. It may be for example a mechanized and motorized device manipulator and / or robotized to perform the required movements of each gripping member. In a preferred embodiment and according to the invention, said deliasseur comprises a deliasseur arm rotated relative to the frame by a motor device about an axis of rotation parallel to the axis of folding, said deliasseur arm carrying at least a grasping organ. Furthermore, each receiving location can be oriented in space and relative to the vertical in any position. Nevertheless, preferably, and advantageously according to the invention, each receiving location comprises a horizontal plate capable of carrying a stack of horizontally extending articles. In this embodiment, advantageously, a device according to the invention is also characterized in that the axis of rotation of the arm (8) deliasseur is fixedly arranged relative to the frame, and in that said plate is mounted by the frame so that it can be moved in horizontal translation orthogonal to the axis of rotation of the deliasseur arm in one direction or the other to allow adjustment of the relative position of the plate and the axis of rotation of the deliasseur arm in function the size of the articles. In addition, advantageously and according to the invention, the axis of rotation of the deliasseur arm is disposed horizontally under said plate and in that the deliasseur arm comprises at least one branch extending from the axis of rotation in a plane vertical on the side of said plate, said arm carrying a branch extending above said plate, said support carrying at least one gripping member. Furthermore, advantageously and according to the invention, each gripping member is mounted on said support, and said support is mounted relative to said branch, so as to allow adjustment of the position of each gripping member relative to the In this way, the deliator can be adjusted according to the shapes and dimensions of the items that may vary. In addition, advantageously and according to the invention, the holding device comprises at least one pressing member resiliently biased against the free surface of the article in the first position of the initial stack of the bundle in the vicinity of its binding end. Furthermore, according to an advantageous embodiment of the invention, each gripping member comprises a suction cup adapted to come into contact with the free surface of an article connected to a controlled air suction source.

Advantageously and according to the invention, the suction cup is mounted at the end of a rod extending in a plane orthogonal to the axis of folding, slidably mounted relative to a support and resiliently biased by a compression spring towards a maximum extension position in which, in the grip position of the deliasseur, said suction cup comes into contact with the receiving location, said rod and said spring being also adapted to allow, in gripping position of the deliasseur, a contact of the suction cup with the free surface of an article in first position of a stack of maximum thickness present in the receiving location. In this way, the gripping position of each suction cup adapts automatically according to the thickness variation of the residual battery.

A device according to the invention may be formed of a single receiving location and a single deliator, with a single associated processing unit. Nevertheless, it is an advantage of the invention to allow the association of several receiving locations and of several deliassers with each processing unit, so that several packages can be processed simultaneously, the articles of the different packages being processed successively alternately. by the same processing unit. Thus, advantageously, a device according to the invention comprises a plurality of receiving locations and several deliassers associated with the same surface treatment unit whose operations are out of phase so that the surface treatment unit processes the items of the different locations of reception successively. Furthermore, a device according to the invention may also comprise several processing units each associated with one or more receiving locations, or even several processing units associated with each receiving location to perform several simultaneous processing on each item.

The invention also relates to a device characterized in combination by all or some of the characteristics mentioned above or below. Other objects, features and advantages of the invention will appear on reading the following description which refers to the appended figures representing an embodiment given solely by way of non-limiting example, and in which: FIG. schematic perspective view of a treatment device according to the invention, - Figure 2 is a schematic partial perspective view of a treatment station of the device of Figure 1 according to the invention, - Figures 3a, 3b, 3c, 3d are schematic side views illustrating a processing station of a device according to the invention with different positions of the deliasseur: respectively release position, waiting position, gripping position, and folding position in the vicinity of the Folding limit switch, FIG. 4 gives examples of timing diagrams of the angular stroke and the angular velocity of the deliator of a device according to the invention. The processing device according to the invention shown in the figures comprises a frame 1 welded mechanic resting on the ground, and two stations 20a, 20b treatment packages, each station 20a, 20b comprising a location 2 for receiving a package 4 of articles and for leafing through this bundle 4 for the successive individual treatment of the different items of this bundle 4 by a processing unit 16. Each slot 2 for receiving a bundle is in the form of a horizontal plate 2 resting on horizontal rails integral with the frame 1. This plate 2 is slidably mounted in longitudinal longitudinal translation on the rails 15, so that its horizontal position relative to the rails 15, so the frame 1 can be adjusted in a direction of translation adjustment 45, and then blocked by a knob 21 locking resulting in a clamping screw. The two rails 15 are formed of longitudinal upper horizontal folds, oriented towards one another, of two lateral vertical walls 23 parallel to each other fixed to the frame 1.

The plate 2 preferably carries a U-shaped stirrup 3 with an upwardly oriented opening, preferably of adjustable width, to receive a bundle 4 of articles to be treated. In addition, the plate 2 is provided, at one of its longitudinal ends, with means for receiving and fixing a binding device of the bundle 4, in particular, in the example shown, perforations 25 adapted to to be able to receive a jumper 26 for binding a bundle 4. In fact, each bundle 4 is provided, at one of its ends, with said binding end 7, with a binding device such as a binding jumper 26 having rods passing through perforations in each article at the end 7 of binding and to maintain the various articles of the bundle 4 assembled stacked and connected to each other. These perforations 25 of the plate 2 extend generally along an axis, called the axis 31 of binding, oriented along the width of the plate 2, which corresponds to the width direction of the articles (generally rectangular) taken at their end 7 binding.

Furthermore, a transverse pressing arm is carried by a pair of rods 27 rotatably mounted respectively with respect to the side walls 23 about a horizontal axis 28 disposed under the plate 2, so that this pressing arm can be folded down, in the holding position, on the upper surface of a bundle 4 placed on the plate 2, in the vicinity of the binding end 7 of the bundle 4 (Figures 2, 3b, 3c, 3d). The pressure arm can be rotated in the opposite direction, in the release position, beyond the end 7 of binding of the bundle 4 to release the latter and allow a change of bundle (Figure 3a). The pressure arm is a straight rod which extends parallel to the binding axis 31 so as to define an axis, called the folding axis 22, parallel to the binding axis 31 and to the pivot axis 28. rods 27 carrying this presser arm.

At least one traction spring 6 is interposed inside one of the side walls 23 between a rod 29 extending inside the side wall 23 and coupled (through the wall 23) integral in rotation with one of the rods 27, and a fixed point of the wall 23 so as to resiliently return the rod 29 and thus the pressure arm 5, resting on the bundle 4 in the holding position, and on the opposite, 9 in position clearance. The assembly thus forms a device for holding the binding end 7 of the bundle 4 with respect to the plate 2, and therefore with respect to the frame 1. Moreover, each station 20a, 20b is provided with a moving assembly motorized, said deliasseur 30, able to leaf a bundle 4 disposed on a plate 2 of reception and is presented (before treatment by the deliasseur 30) in the form of an initial stack of superposed articles. This deliasseur 30 comprises firstly an arm, said arm 8 deliasseur, extending outside one of the side walls 23 and driven by its lower end 33 in rotation about a horizontal axis 9 parallel to the 31 axis of binding, the axis 22 of folding and the pivot axis 28 of the holding device, so as to pivot on an angular stroke of at least 180 ° from one longitudinal end to the other of the plate 2. The arm 8 deliasseur is coupled to its lower end 33 through the side wall 23 to a shaft 32 leading to a device 14 motor mounted on the inner side of the same wall 23. The device 14 motor is preferably formed of a brushless electric motor coupled to a gearbox whose output shaft forms the driving shaft 32 driven in rotation along the axis 9. The axis 9 of rotation of the arm 8 deliasseur is fixed relative to the frame 1 , and arranged horizontally under the plate 2.

The axis 9 of pivoting arm 8 deliasseur is orthogonal to the rails 15, that is to say to the direction 45 of translation adjustment of the plate 2. The mounting of the plate 2 adjustable in longitudinal translation relative to the rails 15 orthogonally to the axis 9 of rotation of the arm 8 deliasseur and the axis 22 of folding, allows in particular an adjustment of the relative position of the plate 2 and the axis 9 of rotation of the arm 8 deliasseur according to the dimension of the articles received on the plate 2. The arm 8 deliasseur comprises a branch 35 extending upwardly from the axis 9 of rotation in a vertical plane on the side of the plate 2, outside of the side wall 23, and a support 10 extending transversely above the plate 2, the support 10 being itself carried to the upper end 34 of the branch 35. The position of the support 10 along the branch 35 is preferably adjustable, thanks to a mounting 36 grout equipped with at least one locking screw 37. The support 10 itself carries at least one gripping member 11 adapted to cooperate with the free surface of an article extending in the first position of the residual stack 38 of the bundle 4.

In the example, the support 10 carries two suction cups 11 each connected to a source of air suction by a flexible pipe. Each suction cup 11 is carried at the lower end of a rod 12 slidably mounted relative to the support 10 via a compression spring 13 reminding

The suction cup 11 in extreme position farthest from the support 10, that is to say towards its contact with the free surface of an article of the residual battery 38 when the arm 8 deliasseur is in the gripping position. Each rod 12 extends in a vertical plane orthogonal to the axis 22 of folding and to the axis 9 of pivoting arm 8 deliasseur.

Preferably, as shown, each suction cup 11 is

Mounted on the support 10 so as to allow adjustment of its position on the support 10 parallel to the axis 9 of rotation of the arm 8 deliasseur. To do this, each suction cup 11 is mounted on a slider 39 engaged around the support 10 formed of a bar, and at least one locking screw 40 blocks this slider 39 in position relative to the support 10.

The electric motor of the motor device 14 is controlled by an automaton 41 according to a kinematic suitable for making displacements of the arm 8 deliasseur, and therefore of the members 11 gripping, so as to flick the bundle 4 in position on the plate 2, and this with a dynamic allowing also the treatment of the free surface of each article located in first position (that is to say

25 in the upper position) of the residual battery 38 of the bundle 4 by a processing unit 16.

In particular, the automaton 41 is adapted to be able to control the drive in displacement of each gripping member 11 successively between:

An intermediate position waiting for each member 2940260 ii 11 to grip the free surface of a stack of maximum thickness present in the receiving location 2 (FIG. 3b) at a gripping position in which each gripping member 11 comes into contact with the free surface of an article located in the first position

5 of the residual pile 38 of the bundle 4 (FIG. 3c), and is activated so that it can then drive the moving article (simultaneously with the movement of the gripping member 11) to fold it around the axis 22 of folding, a folding position of an article about the axis 22 of folding (Figure 3d), so that the article is then folded away from said position of

10 each gripping member 11 is disabled (on control of the controller 41) so as to be dissociated from the article; this folding of the article also has the effect of clearing the immediately underlying article of the residual pile 38, a return to the intermediate waiting position, the folded article remaining in the folding position.

The flexibility of the article makes it possible to maintain the article in the folding position during the return of the deliasseur arm and of each deactivated gripping member 11. Indeed, as soon as each gripping member 11 is deactivated, the article slides on this gripping member 11 and, where appropriate, falls by gravity. In any event, the gripping member 11 slides on the article in the folding position

20 when returning the arm 8 deliasseur to the standby position. To facilitate this sliding, it is of course necessary to ensure that each gripping member 11 comes, in the gripping position, in contact with the article in the vicinity of its end opposite the end 7 of binding. In addition, maintaining the folding position can be facilitated if a free space (FIG. 3d) is provided between the plate 2 and each member 11

25 to allow the end of the article to fall by gravity into this free space when each gripping member 11 is deactivated. Alternatively or in combination (not shown), nothing prevents to provide a specific device capable of deploying above the article in the folding position to prevent inadvertent return with the arm 8 deliasseur. For example, this device may be formed of a rod deployed transversely under the effect of a cylinder above the article in the folding position, when the arm 8 deliasseur arrives in the folding position shown in FIG. 3d.

FIG. 4 represents an example of kinematics with, in the upper part, a chronogram of the variations of the angular stroke a of the deliassing arm and at the bottom a chronogram of the variations of the angular velocity V = da / dt of the deliassing arm.

From the standby position (FIG. 3b), which constitutes the initial reference position (a = 0) of the deliassing arm 8 and of the electric motor, the deliassing arm 8 is pivotally displaced towards the residual stack 38 to the gripping position in which the suction cups 11 come into contact with the free surface of the article in the first position of the battery 38, then the suction cups 11 are activated (air suction source activated). As shown in Figure 4, this first displacement is carried out at an angular velocity -V4.

In the gripping position (FIG. 3c), each suction cup 11 is capable of coming into contact with the plate 2. Given the presence of the articles of the residual battery 38, the movement of the suction cup 11 is however interrupted before the end of the rotation stroke (a = -a4) of the arm 8 deliasseur. The angular stroke difference is compensated by the sliding of the rod 12 carrying the suction cup 11 relative to the support 10. The length of the rod 12 must be sufficient to allow the contact of the suction cup 11 on the one hand with the free surface platinum 2 in the absence of article (so as to allow the gripping of the last remaining article of a pile) and, secondly, with the free surface of an article in first position of the initial stack forming the bundle 4, maximum thickness, when the arm 8 deliasseur is in the extreme position of gripping (a = -a4).

From the gripping position, and when the suction cups 11 have been activated on command of the automaton 41 which puts them in communication with the source of air suction (for example the opening of a solenoid valve), the arm 8 deliasseur is driven in the other direction of rotation, along an angular displacement stroke, called the folding stroke, and accelerated progressively to a first angular velocity V1 as shown in FIG. 4. From a certain displacement stroke (a = al), the 8 deliasseur arm is accelerated again, more quickly, until a second speed V2 of greater value than the first speed V1. In the vicinity of the folding limit switch (a = a2, FIG. 3d), the deliassing arm 8 is again suddenly accelerated to a third speed V3 of value even greater than the second speed V2, until reaching its position extreme end of stroke (a = a3) from which on the one hand the suction cups 11 are deactivated on command of the controller 41 which interrupts their supply by the air suction source (for example closing a solenoid valve), which releases the article which is thus folded around the presser arm and falls by gravity. Then, the 8 deliasseur arm is brought back to the standby position (a = 0) at the speed -V4.

It has been found that such a specific kinematics makes it possible to individually peel off each article of the residual pile 38 with great reliability, even when the articles are formed of polymeric synthetic materials that may be subject to static electricity phenomena. (as is the case, for example, for polyethylene packaging bags). In addition, this kinematics reliably releasing each article after folding, avoiding inadvertent return to the residual stack 38 with the arm 8 deliasseur.

The values of the different speeds can be easily adjusted experimentally according to the nature of the articles (dimensions, density, materials ...). Preferably, the controller 41 is programmable so as to allow such adjustment by software. In addition, the acceleration ramp formed by the different speeds V1, V2, V3 during the folding stroke can be the subject of different embodiments, and in particular with a greater number of successive different speeds. It should be noted in particular that in the preferred embodiment shown, the acceleration slope from the waiting position (V = 0) to the first speed V1 is lower than the acceleration slope between the first speed V1 and the second speed V2, which is itself lower than the acceleration slope between the second speed V2 and the third speed V3. Also, the controller 41 can be programmed to allow adjustment of the holding bearings in each position of the arm 8 deliasseur.

In the embodiment shown, the processing unit 16 is for example a labeler 16 which delivers self-adhesive printed labels.

A motorized manipulator mechanism 43 makes it possible successively to take a label delivered by the labeler 16 to apply it to the free surface of an article in the first position of the residual stack 38 of a treatment station 20a, 20b. To do this, the manipulator mechanism 43 comprises a suction head 44a, 44b connected to an air suction source by a flexible pipe, and this head 44a, 44b is mounted on a deformable parallelogram mechanism rotated by an engine. around a horizontal axis so that the head 44a, 44b moves horizontally alternately in a direction between the output of the labeler 16 and the plate 2, then in the other direction from the plate 2 to the output of the labeler 16.

Preferably, the labeler 16 incorporates a printer 17 that can be programmed to print appropriate labels in situ.

Furthermore, in the embodiment shown, the manipulator mechanism 43 comprises two suction heads 44a, 44b each mounted respectively on a deformable parallelogram mechanism, the two mechanisms being at 90 ° from each other is driven around the same axis of rotation simultaneously by the same motor. In addition, the two processing stations 20a, 20b are arranged on either side of the labeler 16, and are alternately controlled in phase opposition. In this way, the labels are alternately applied to an article located on one item and then an item located on the other item.

After all items of the same bundle have been folded, and thus processed by the processing unit 16, the bundle has been fully laminated. The bundle is then folded down (manually or thanks to a specific automatic manipulator not shown) on the plate 2 and can be released from the latter for the introduction and treatment of a subsequent bundle, the arms 8 deliasseur and 5 presser being in the release position (a = a3, Figure 3a).

It goes without saying that the invention can be subject to many different embodiments with respect to the preferred embodiment shown in the figures and described above. In particular, nothing prevents a different number of processing station (s) (and therefore location (s) of receipt of bundles) and / or a different number of processing unit (s). For example, it is possible to provide a single unit for processing adhesive labels at the center of a plurality of processing stations distributed around this processing unit. The processing carried out by such a processing unit can be of any kind, including printing, forming, removal of materials, or even measurement of parameters by contact or at a distance, photography ...

Claims (1)

CLAIMS1 / - Device for treating at least one bundle (4) of generally shaped articles of flexible sheets stacked and connected to each other by a binding device (26) in the vicinity of one end of the bundle Binding end (7), characterized in that it comprises: - a frame (1), - at least one location (2) for receiving a bundle (4) of articles, - a device ( 5, 6, 27, 28, 29) relative to the frame (1) of the binding end of a bundle (4) arranged in a receiving location (2), at least one moving motorized unit said deliasseur (30), capable of flipping a bundle (4) disposed in a receiving location (2) in the form of an initial pile of superposed articles, said deliasseur (30) comprising at least one member (11) ) gripping adapted to cooperate with a portion opposite the binding end of the free surface of an article in the first position of the stack r residual (38) of the bundle, û said déliasseur (30) being adapted to drive each member (11) for gripping, and thus individually said article with which it cooperates, 20 in a displacement adapted to fold said article about an axis (22) of folding relative to the binding device (26), in order to flip the bundle (4) while maintaining and preserving its binding, at least one processing unit (16) adapted to apply a treatment to an article is presenting, after folding an article by said deliasseur (30), 25 in the first position of the residual pile (38) of a bundle disposed in the receiving location (2). 2 / - Device according to claim 1, characterized in that said déliasseur (30) is adapted for, in a folding stroke of an article, driving each member (11) for gripping between a gripping position in which it comes into contact the free surface of an article located in first position of the residual pile of the bundle, and a folding position of an article about the folding axis (22), opposite said gripping position, and in that said deliasseur (30) is adapted to impose during a first part of the folding stroke, a first speed (V 1) of displacement from the gripping position, then in at least a second subsequent part of the folding stroke, at least a second velocity (V2) of displacement greater than the first velocity (V1). 3 / - Device according to one of claims 1 or 2, characterized in that said deliasseur (30) is adapted to impose an acceleration of displacement at the end of folding stroke. 4 / - Device according to one of claims 1 to 3, characterized in that said deliasseur (30) comprises at least one device (14) motor and a unit (41) for controlling the device (14) engine adapted to be able to control the displacement drive of each gripping member (11) successively between: an intermediate waiting position of each gripping member (11) away from the free surface of a stack of maximum thickness present in the location (2) for receiving, at a gripping position in which each gripping member (11) comes into contact with the free surface of an article located in the first position of the residual pile of the bundle, at a folding position of an article about the folding axis (22), opposite said gripping position. 5 / - Device according to one of claims 1 to 4, characterized in that said deliasseur (30) comprises an arm (8) deliasseur driven in rotation relative to the frame (1) by a motor device about an axis (9) of rotation parallel to the axis (22) of folding, said arm (8) deliasseur carrying at least one member (11) gripping. 6 / - Device according to one of claims 1 to 5, characterized in that each location (2) for receiving comprises a plate (2) horizontal capable of carrying a stack of horizontally extending articles. 7 / - Device according to claims 5 and 6, characterized in that the axis (9) of rotation of the arm (8) deliasseur is fixedly arranged relative to the frame (1), and in that said plate (2) is mounted relative to the frame (1) so as to be movable in horizontal translation orthogonal to the axis (9) of rotation of the arm (8) deliasseur in one direction or the other to allow adjustment of the relative position of the plate (2) and the axis (9) of rotation of the arm (8) deliasser according to the size of the articles. 8 / - Device according to claims 5 and 6 or according to claim 7, characterized in that the axis (9) of rotation of the arm (8) deliasseur is disposed horizontally under said plate (2) and in that the arm ( 8) deliasseur comprises at least one leg (35) extending from the axis (9) of rotation in a vertical plane on the side of said plate (2), said leg (35) carrying a support (10) extending above said plate (2), said support (10) carrying at least one member (11) for gripping. 9 / - Device according to claim 8, characterized in that each member (11) for gripping is mounted on said support (10), and said support (10) is mounted relative to said branch (35), so as to allow an adjustment of the position of each member (11) gripping relative to the location (2) of receipt and therefore with respect to the articles arranged on the latter. 10 / - Device according to one of claims 1 to 9, characterized in that the device (5, 6, 27, 28, 29) for holding comprises at least one pressing member (5) resiliently biased against the free surface of an article in first position of the initial stack of the bundle (4) in the vicinity of its binding end. 11 / - Device according to one of claims 1 to 10, characterized in that each member (11) for gripping comprises a suction cup (11) adapted to come into contact with the free surface of an article connected to a source of controlled air suction. 12 / - Device according to claim 11, characterized in thata sucker (11) is mounted at the end of a rod (12) extending in a plane orthogonal to the axis (22) of folding, slidably mounted by relative to a support (10) and resiliently biased by a compression spring (13) to a maximum extension position in which, in the gripper's gripping position (30), said suction cup (11) comes into contact with the location (2), said rod (12) and said spring (13) being also adapted to allow, in the grip position of the deliasseur (30), a contact of the suction cup (11) with the free surface of an article in first position of a stack of maximum thickness present in the location (2) of reception. 13 / - Device according to one of claims 1 to 12, characterized in that it further comprises at least one surface treatment unit (16) capable of applying a surface treatment on the free surface of an article in first position of the residual pile of a bundle (4) disposed in the receiving location (2). 14 / - Device according to claim 13, characterized in that at least one surface treatment unit (16) is adapted to apply a label on said free surface. 15 / - Device according to claim 14, characterized in that said unit (16) for surface treatment comprises a station (17) for printing 20 labels, and a mechanism (43) for placing labels. 16 / - Device according to one of claims 13 to 15, characterized in that it comprises a plurality of receiving locations (2) and several deliassers associated with the same unit (16) surface treatment whose operation is out of phase with such so that the surface treatment unit (16) processes the articles of the different receiving locations (2) successively.