EP1700786B1 - Modular dispensing system for packaging tablets in a pocketed web - Google Patents

Abstract

The system has a frame (1) equipped with two motorization units for driving in rotation two rotating brushes above the trajectory of displacement of a strip. The frame has a vertical plate (100) provided with two series of fixation units permitting to removably integrate the plate with a dispensing assembly (3) channeled by gravity, with descending manifolds, and a horizontal brush case (2) combined with a chute (20), respectively.

Description

The present invention relates to the materials used in the field of packaging tablets, thereby meaning products of all kinds in discrete units, when these tablets are packaged distributed in the cells of a honeycomb support, generally called "blister" .

It is known in the prior art, in particular for the pharmaceutical industry, many packaging facilities to have tablets or equivalent units in the cells of a moving honeycomb strip, driven to scroll on itself below a feeding device bringing the tablets in bulk. The tablets are thus distributed, for example, in the cells of blister packs in a sheet of synthetic material receiving at another station a closure film (for example an aluminum protective film), as described for example in the patent US Pat. No. 3,464,182. It is known, on the one hand, of blistering machines of this type in which the advance of the strip is continuous (as it is chosen as an example in the remainder of the description to better illustrate the invention) and, on the other hand, machines in which the advance of the strip is discontinuous at the level of the deposit of the tablets, which is carried out in successive batches (as in the system described in the French patent application 2,759,669 ).

The known installations are divided into two major families, distinguished by the means of distribution of the tablets between the bulk feed device and the blister strip, according to whether it is carried out by stirring and spreading in rotary brush dispensers or by guiding the tablets along ramps in so-called channelized distribution devices. Distributors of each type are subject, for example, to French patent applications FR 2 759 346 , FR 2 759 668 , FR 2 759 669 , or US patents US 3,724,165 and US 4,733,520 , which describe with all the desirable details their constitution and their functioning for particular concrete forms of realization.

A constraint commonly encountered with known installations is the need to be able to process tablets of different sizes. In the pharmaceutical industry in particular, these formats are very varied, with pills, capsules and other tablets, which differ in size, shape, surface structure. Modern blistering shops must then have several machines and adjust them specifically for each change in quality of tablets to be treated. In particular, while a device depositing the tablets on the band moving in a housing supporting rotating stirring and spreading brushes optimally ensures filling of the cells for tablets of rounded format, such Filling mode becomes inoperative for tablets having a more elongated or rectangular shape, or flatter. For these latter formats, it is generally necessary to use one or the other of the ramp distribution modes, which make it possible to pre-position the tablets.

The present invention aims essentially to improve the conditions of packaging blister packs, so in particular to reduce construction and operating costs, to facilitate the processing of tablets of various sizes in the same installation, to increase the rate of production. It makes it possible to avoid the drawback of existing installations in which several specific heavy equipment is used, to be assembled and dismounted in the packaging line each time the mode of distribution or distribution of the tablets changes, and in which the assembly operations -Demontage require a lot of time and cause a stop of the conditioning detrimental to the productivity.

For this purpose the invention provides a modular tablet dispensing system for packaging tablets in a blister strip moving beneath a bulk tablet feeder, wherein a control member mounting frame. motorized has an attachment surface provided with at least two sets of fasteners for releasably mounting respectively at least two interchangeable distribution assemblies in functional relationship with each other with at least some of said motorized control elements for driving own means thereof for dispensing tablets between the bulk feeder and the blister strip.

Said interchangeable assemblies preferably comprise at least one rotating brush spread distribution unit succeeding one another above the path of the cellular strip and at least one channelized distribution assembly with guide rails depositing the tablets one after the other in the alveoluses in line of the alveolate band.

The system of the invention allows interchangeability between different distribution configurations thanks to the removable nature relative to the frame of the distribution elements in contact with the tablets. It is no longer necessary to perform a tedious disassembly of the entire distribution equipment. In addition, the purity requirements required in the pharmaceutical field are facilitated by avoiding contamination between tablets of different chemical compositions treated successively in the same machine.

The different components of the various interchangeable assemblies are mounted on the frame so as to operate in dispensing tablets from the bulk feed device to the scroll plane of the blister strip. The mounting surface of the frame therefore advantageously has a vertical component so as to support equipment extending from one to the other. It is configured to alternately receive the different distribution elements, removably, even if they are either in an inclined arrangement between two levels of different heights above the path of the blister strip as in a pipe assembly in ramps guiding the descent of the tablets by gravity, either in a low position longitudinally above of this trajectory as in a dispensing box with rotating stirring brushes and spreading tablets. Such a brush box, which preferably is itself with interchangeable brushes as described in the patent text FR 2 759 346 , is advantageously completed by an inlet chute of the tablets joining the bulk feed device, which makes it possible to keep the same mounting support thereof, as well as the same drive means of the blister strip, when you change the distribution mode.

To suit a maximum of distribution modes, the frame with its attachment surface is preferably adapted to alternately receive distribution sets with guide rails of several different types, to choose from among those in which the ramps are inclined almost to the vertical so that the tablets run easily through gravity, or those in which the ramps are less inclined but subjected to vibrations favoring the descent of the tablets, those in which the tablets are introduced into these ramps from the feed device. Bulk by rotating systems with blades or by vibrating spreaders with lyre as described in the patent texts already mentioned, or those in which the ramps are formed around a cylinder which is rotated to lower the tablets .

According to another of its advantageous features, the modular system according to the invention comprises rotary drive members actuated via motorization elements carried by the frame which are accessible through the attachment surface thereof to connect removably to the different rotating elements of the distribution sets. Such members are advantageously arranged at at least two distinct levels of height to rotate at a first level of height, or high level, the axis of at least one rotary element of the set with gravity distribution ramps, and at a second level of height, or low level because lower than the first level of height, the axis of at least one rotating brush falling from the distribution box by spreading.

According to another feature, the frame attachment surface is orthogonal and adjacent to a drive device of the cellular web in horizontal displacement, and a series of fasteners comprises at least two remote attachment points one of the other in the direction of advance of the band, to allow the assembly of what is known as a brush box, namely the main rotating brushes and their support in a distribution set spreading, placing it horizontally in a low position above the moving honeycomb strip, so that the rotating stirring and spreading brushes come into contact with it. Especially for the elements that are useful in this mode of distribution, but where appropriate also for those of the channelized distribution assemblies, it is advantageous for the fasteners of the elements on the frame, by screwing or otherwise, to be configured to allow adjustment in relative position, between the elements and the blister strip and / or between the elements of one to the other. It is thus possible to take full advantage of the flexibility of a brush box in that it makes it possible to alternately treat tablets which remain rounded, but more or less elongated or flat, and which may especially be of different sizes from one another. one batch from one production to another.

According to another particular feature, it is advantageously provided with independent fixing members for mounting a tablet-lying brush (in the plane of the receiving honeycomb strip) or with a helical threading brush used to remove the excess tablets by relative to the available cells, which are located downstream of downstream distribution ramps channeled or downstream of a brush box. The fasteners provided on the mounting surface of the frame are arranged in correspondence with the relative provisions of the alternative distribution elements that result.

In accordance with the invention, the means for fixing the elements of the distribution assemblies on the frame are chosen to facilitate assembly and disassembly operations which are convenient and fast. It is the same for the connecting means ensuring the connection between, on the same side of a wall having said attachment surface as the moving strip, the axes of the brushes. rotary drives and other elements to be rotated, and the drive shafts of the drive elements which are mounted in the frame on the other side of the attachment surface. From this point of view, it is preferable to use screwdriver type means operating by axial interlocking of a male end member in a member cooperating with a female end through said wall.

Other motorized control members advantageously complement the system according to the invention to ensure, through the mounting surface of the frame, an automatic control of the elements of distribution sets that require it. This is particularly the case for sensitive sensors at the level of the tablets that are part of a circuit for regulating the admission of the tablets to the inlet of a brush distribution box on the surface of the relative displacement strip.

According to other features of the invention, the mounting system of the interchangeable distribution sets is designed to facilitate quick adjustment of the elements that constitute them respectively. It is known that in order to adapt the installation to the treatment of each type of compound, it is desirable not only to modify the composition of the distribution assembly, but also to act on the operating parameters of the various elements participating in the process. distribution of the tablets to make them pass the total of the loose provision to disposition each in a cell of the blister strip. And as the same plant is generally required to periodically restart the processing of different series for compounds of a specific type, it is useful to record the parameters adapted to each type of compounds for reuse in each sequence and thus avoid trial and error that their setting requires during the first treatments of a type of compounds hitherto unknown.

In this sense, the invention advantageously provides to equip the frame with presence sensors which detect which model of distribution element has just been mounted in a situation appropriate to its operation on the attachment surface and which transmit the information to a computer controlling the installation that has pre-recorded data according to which it automatically calculates which motorization elements will then have to be started and which orders their operation accordingly. In addition, it is advantageous that for each distribution mode, there are stored in the memory of the control means, several series of operating parameters previously defined in correspondence with the adjustment possibilities suitable for each particular type of compounds to be treated. The computer is then programmed to automatically select the series of recorded parameters to correlate with the distribution elements whose presence has been detected by the sensors and to provide the information to an operator selecting the appropriate series from those proposed to him and giving the order of automatic implementation of the corresponding parameters. The parameters whose settings can thus be memorized preferably comprise at least the rotational speeds of the various rotary elements, including in particular the brushes of a brush box, the rotary drum of a rotary distributor, the blade cylinder of a apparatus for distributing tablets on admission into a downward-sloping element, the auxiliary brushes for laying down the flat tablets and for removing excess tablets or debris, as well as the vibrating powers of the vibrating elements, for example for adjust the speed of the tablets by their speed along a vibrating rail element.

• la figure 1 représente, en perspective, un mode de réalisation du système modulable de distribution selon l'invention ;
• la figure 2 représente, en perspective, un mode de réalisation d'un bâti apte à être configuré selon différents modes de distribution ;
• les figures 3A et 3B représentent respectivement, en perspective, un ensemble à rampes de distribution pouvant être associé au bâti de la figure 2 ;
• la figure 4 représente une vue en perspective d'une boîte de distribution pouvant être associé au bâti de la figure 2 ;
• la figure 5 montre un exemple de système selon l'invention ayant une configuration avec boîte de distribution ;
• la figure 6 montre un exemple de système selon l'invention ayant une configuration avec rampe de distribution.

The invention, with its features and advantages, will emerge more clearly from a reading of the description which will be made now with reference to the drawings below, in which:

• the figure 1 represents, in perspective, an embodiment of the modular distribution system according to the invention;
• the figure 2 represents, in perspective, an embodiment of a frame capable of being configured according to different modes of distribution;
• the Figures 3A and 3B represent respectively, in perspective, a set of distribution ramps that can be associated with the frame of the figure 2 ;
• the figure 4 represents a perspective view of a distribution box that can be associated with the frame of the figure 2 ;
• the figure 5 shows an example of a system according to the invention having a configuration with a distribution box;
• the figure 6 shows an example of a system according to the invention having a configuration with a distribution ramp.

In the example chosen to illustrate the invention, it is applied to the distribution of tablets in a blister pack of pharmaceutical tablets. These are received individually in the cells of a cellular strip (5) driven in translation on itself. The modular system comprises a frame (1) with motor elements (M1, M2) for rotating rotating brushes (B1, B2) above the path of movement of the web (5). As illustrated in figure 2 , the frame may comprise or be associated with a device for horizontal displacement (50) of the blister strip (5).

The frame has at least one attachment surface which is embodied by a vertical plate (100) disposed orthogonally here and adjacent to the displacement device. The frame (1) also comprises a support assembly (S) for supporting, in height relative to the strip (5) in displacement, a bulk feed device illustrated by a platform (P) for supplying tablets. . The plate (100) is provided with at least two series of fasteners (41, 42) for respectively securing a gravity-fed distribution assembly (3), with downward distribution ramps, and a brushbox ( 2), substantially horizontal, combined with a chute (20). These means of distribution and distribution are advantageously secured to the surface (100) of attachment of the frame removably, so that it is possible to easily achieve, or without tools, a rapid assembly and disassembly of the means of distribution and distribution specific to a tablet format. The specific form of the distribution modules can be very variable, provided they have fasteners adapted to the frame (1) for rapid assembly, these modules being attached to the frame by one and / or the other of the two sets of fasteners (41, 42) of the attachment surface (1) illustrated in FIG. figure 1 .

The modular system according to the invention as described makes it possible to fix the upper platform (P) by fast fastening means (11) as illustrated in FIG. figure 2 . The support assembly (S) is adjustable in height and / or depth position. This support assembly (S) is for example connected to the attachment surface (100) of the frame (1) by means of adjustable screwing or clamping means on the one hand to move the support assembly (S) ) relative to the attachment surface (100) of the frame and on the other hand to lower more or less this support assembly (S). Adjusting the position of the support assembly (S) is effected for example by respective knobs (15, 16), a wheel for adjusting the height and the other to adjust the depth. A tablet inlet sleeve (10) upstream of the platform (P) may also be attached to the support assembly (S) via means (17) for fixing and height adjustment. of this sleeve (10). The platform can also be adjusted for cross-directional admission ( figure 1 ) or an admission in the longitudinal direction ( figure 2 ).

The platform (P) may comprise a rail for feeding the tablets into an introduction chute (20, 30) to the means (2, 3) for distributing these tablets. The platform (P) may comprise, in its downstream part, a suction system to evacuate pieces of broken products or the powder that may result from the friction and shocks of the products between them. The downstream end of the platform disposed above the upstream end of the means (2, 3) for distributing the tablets. These distribution means are described below.

With reference to Figures 3A and 3B , the system according to the invention can be configured for particular non-rounded formats by detachably receiving a set (3) with downward distribution ramps, the ramps being vibrating or fixed. This assembly (3) comprises a guide (32) provided with longitudinal grooves (33), forming tablet ramps. The tablets can thus be deposited and oriented as desired in falling into the internal ramps of the guide (32). A hopper (31) is provided in this dispensing assembly (3) for receiving the tablets arriving through the tabletting chute (30) disposed therein. Alternatively, several chutes may be provided. The hopper (31) comprises an inclined piece or incline (36) downwards towards its downstream part and which can form one or more feed channels for the ramps of the vertical guide (32), this guide (32) being located in downstream of the hopper (31).

In one embodiment of the invention, at least one wall of the feed chutes disposed in the hopper (31) is shaped to form a funnel or constriction in the direction of the vertical guide (32). For example, constrictions are provided for several inclined chutes and are designed so that, in the downstream part of each chute, the tablets can be oriented only longitudinally with respect to a longitudinal axis of symmetry of the chutes and arranged one behind the other.

As illustrated in figure 5 , the hopper (31) forms a closed interior volume in which is incorporated a blade brush (B1), that is to say a rotating cylinder with flexible radial blades. This blade brush (6) is disposed above the vertical guide (32). The axis of the cylinder of the brush (B1) is perpendicular to the longitudinal axis of symmetry of the inclined slope (36). The cylinder, which comprises for example four flexible strips, is rotated in a determined direction (clockwise in the case of the figure 5 ) in which it pushes a portion of the tablets in the opposite direction to their progression towards the vertical guide (32).

As represented in figure 1 , the attachment surface (100) of the frame (1) comprises at least one fixing member (41) at the high level and at least one connecting member of the male or female type. This connecting member, comprising, for example, a groove or slot (4) of a female endpiece, is arranged in height relative to the blister strip (5) for receiving and connecting a portion (35) extending the axis of the rotary brush (B1) for forming a cooperating male end, a motor element (M1) or rotation drive located high.

The cylinder with radial lamellae can ensure a regulation of the flow of tablets that pass through the inclined chutes, allowing only one tablet at a time to pass in the downstream part of the chutes. The laminated cylinder releases back all the superimposed tablets and allows downstream only the tablet located at the bottom of the hopper (31). Naturally, it is possible to provide as many inclined chutes as vertical ramps in the guide (32) at the outlet of the hopper. The ramps formed with the longitudinal grooves (33) are located in a plane perpendicular to the longitudinal axis of symmetry of the strip (5).

In one embodiment of the invention, a dust suction system (34) may be disposed at the inclined slope (36) to aspirate and discharge broken tablet pieces or powder that may result from friction or shocks products between them. The tablets retain their acquired orientation in the vertical ramps. Detection means (16), for example optical, may be provided in the distribution assembly (3) to detect the state of filling of the vertical guide (32).

According to the present invention, the set (3) of downward ramp distribution is easily fixed on at least one surface (100) for attaching the frame by a rapid connection device, for example of screwdriver type, to connect the brush to blades (B1) to a motor element (M1), fixing and centering elements (43) being provided to facilitate assembly / disassembly operations. The quick links type screwdriver are provided to cooperate each with a rotating slot disposed on said surface (100) for attachment of the frame (1). A knurled screw with quick coupler, arranged on the opposite side to the side through which the dispensing assembly (3) is fixed to the frame (1), allows the user to assemble and disassemble this assembly (3) without tools and with a great speed.

As illustrated in figure 5 , a brush (B3) lying down the tablets is disposed above the moving honeycomb strip (5) downstream of the distribution manifold assembly (3) down. Placing the tablets in the cells of the strip (5) is thus facilitated.

The modular system according to the invention can incorporate another type of interchangeable dispensing equipment, for example in the form of a casing providing a direct and random way of inserting round-shaped tablets into the cells of the strip (5). ). With reference to the figure 4 , the system may comprise a removable distribution box (2) covering a portion of the moving strip (5). In the embodiment of figures 1 and 4 , the distribution box (2) is composed of a housing (21) open in its lower part and a distribution chute (20). The chute (20) conveys the tablets spilled from the platform to the inside of the housing (21). This housing (21) comprises for example between two and five brushes (B2) in a parallelepiped volume. The respective axes of the brushes (B2) are extended by fast links of the screwdriver type, that is to say the male parts (25, figure 4 ) having a substantially rectangular endpiece adapted to engage in a complementary groove (4, figure 1 ).

As illustrated in figure 4 , the housing (21) may comprise fixing and centering elements (44), for example arranged at each end of the housing (21) and oriented towards the attachment surface (100). These elements (44) are fast type to handle and may simply consist of male elements, while a series of fasteners (42) comprising female-type attachment points, for example at least two attachment points , are provided in the attachment surface (100) to allow the dispensing box (2) to be fixed horizontally just above the moving web (5). The manipulation of these elements (44) can be achieved by means of knurled screws (46), the user having to manipulate two knobs (46) as illustrated in FIG. figure 1 to secure the distribution box (2) to the frame (1). The quick links between male parts (25) extending the axis of the brushes (B2) then engage automatically in the associated grooves (4) of the frame (1).

In the example of figures 1 and 4 , the housing (21) has lateral projections at both ends (22, 23) so that the housing (21) can be associated with a block (13) advanced relative to the rest of the attachment surfaces (100). This block (13, figure 6 ) receives the end of the axes of the brushes (B2) and allows them to be rotated by independent motors (M2). A dust suction nozzle (12) is provided laterally on the frame (1) and can communicate with a dust discharge channel disposed in the projecting portion of one end (22) of the housing, as shown in FIG. figure 1 .

With reference to the figure 1 , the one or more fastening surfaces (100) for connecting the respective dispensing equipment comprise between four and eight screwdriver type quick links for connecting a respective drive member of the axis of the rotating brushes (B1, B2, B3 ) motor elements (M1, M2), which are for example independent motors.

The frame (1) used in the invention, as illustrated in FIG. figure 2 , and thus comprises rotary drive members actuated via the motorization elements (M1, M2) which are advantageously arranged at at least two distinct levels of height (h1, h2). It is therefore possible thanks to this frame (1), to rotate at a first level of height, or high level (h1), the axis of at least one rotating brush (B1) of the assembly (3) to downward distribution ramps, and at a low level (h2) the axis of at least one rotating brush (B2) of said horizontal distribution box (2). A drive member disposed at this second height level (h2) can be used to rotate a brush (B3) to bed the tablets fed by the vertical guide (32) of the set (3) with distribution ramps .

As described, drive of the movable members of the interchangeable dispensing assemblies takes place through the attachment plate (100). In particular, the shafts of the drive motors have tips that are accessible through this wall to connect to the axes of the rotating elements. Apart from the accesses of this kind, this wall is advantageously full. In addition, each of the elements of the interchangeable assemblies which are in contact with the tablets is separated from the frame (1) by a vertical wall. This makes it possible, in particular, to isolate the brushes (B) from the attachment surface (100) and thus avoiding a diffusion of the chemical compounds which would cause risks of contamination from one type of tablet implemented to the other.

Claims (12)

1. Modular tablet-distributing system for the packaging of tablets in an alveolate strip (5) which is in displacement underneath a device for supplying tablets in loose form, wherein a frame (1) for mounting motorised-control elements has a connection surface (100) provided with at least two series of fastening members (41, 42) for the detachable mounting, respectively, of at least two interchangeable distributing units (2, 3) in a situation of functional relationship each with at least certain of the said motorised-control elements for the purpose of driving means of its own which it comprises for the purpose of carrying out the distribution of the tablets between the device for supplying them in loose form and the alveolate strip.
2. Tablet-distributing system according to claim 1, wherein the said interchangeable units comprise at least one unit for effecting distribution by spreading-out with rotary brushes which follow each other above the trajectory of the alveolate strip, and at least one channelled-distribution unit with guide ramps depositing the tablets one after the other in lined-up cells in the alveolate strip.
3. Tablet-distributing system according to claim 1 or 2, wherein the connection surface of the frame has a vertical component so as to be capable of supporting fittings comprising the various elements making up the various interchangeable units which are mounted on the frame (1) so as to be able to function in the distribution of the tablets from the device for supplying them in loose form, which is situated at a relatively high level in the system, to the plane in which the alveolate strip passes by and which is situated at a relatively low level.
4. Tablet-distributing system according to claim 1, wherein the frame supports at least one motorising element (M1, M2) for driving the rotary brushes (B1, B2) in rotation above the trajectory of displacement of the strip (5), a supporting unit (S) for supporting, at a height in relation to the strip (5) which is in displacement, a platform (P) for bringing in tablets in loose form, the connection surface with a vertical component having at least two series of fastening members (41, 42) which make it possible to detachably attach at least two interchangeable-distribution units, including a channelled-distribution unit (3) with descending distributing ramps and a unit for effecting distribution by spreading-out which comprises a substantially horizontal box with rotary brushes (2) which is supplemented by a supply chute (20) with a vertical component rejoining the said platform.
5. System according to claim 4, wherein the frame (1) comprises members for effecting driving in rotation which are actuated via the said motorising elements (M1, M2) which are accessible through the connection surface of said frame so as to be connected in a detachable manner to the various rotary elements of the distributing units, and are disposed at at least two distinct levels in height (h1, h2) so as to cause to rotate, at a first, relatively high level in height (h1), the spindle of at least one rotary brush (B1) of the unit with descending distributing ramps, and at a second, relatively low level in height (h2), the spindle of at least one rotary brush (B2) of the said horizontal distributing box (2).
6. System according to any of claims 1 to 5, wherein the said frame with its connection surface is adapted to receive, alternatively, channelled-distribution units with guide ramps of a number of different types, which are to be chosen from among, especially, those in which the ramps are inclined almost vertically so that the tablets run through them easily as a result of gravity, or those in which the ramps are at less of an inclination but are subjected to vibrations that promote the descent of the tablets, those in which the tablets are introduced into ramps of this kind from the device for supplying them in loose form by rotary systems with vanes or by vibrating distributors, or even those in which the ramps are arranged around a cylinder which is driven in rotation so as to cause the tablets to descend.
7. System according to any of claims 1 to 6, wherein the connection surface of the frame with a vertical component is adjacent to a device for driving the alveolate strip in horizontal displacement, and wherein a series of fastening members comprises at least two fastening points which are at a distance from one another in the direction of advance of the strip, so as to permit the mounting of a box with brushes which supports the rotary dispersing and spreading-out brushes mounted in series just above the strip which is in displacement within a unit for effecting distribution by spreading-out, while another series of fastening members comprises at least two fastening points which are at a distance from one another in the vertical direction, so as to permit the mounting of a ramp for guiding the tablets within a channelled-distribution unit.
8. System according to any of the preceding claims, wherein the members for fastening elements of the interchangeable distributing elements are associated with means for effecting adjustment in relative position, between the elements and a plane of displacement of the alveolate strip and/or between the elements from one to the other.
9. System according to any of the preceding claims, wherein the frame comprises means for mounting, in terms of fastening and functioning, a rotary brush for laying the tablets down and/or a brush with a helical thread serving to move the surplus tablets aside, which means are disposed downstream of the descending ramps belonging to a channelled-distribution unit and downstream of a box with brushes belonging to a unit for effecting distribution by spreading-out.
10. System according to any of the preceding claims, wherein the connecting means providing the link between, on the same side of a wall (100) having the said connection surface as the strip which is in displacement, the spindles of the rotary brushes and other elements which are to be driven in rotation, and the driving shafts of the motorising elements which are mounted in the frame on the other side of the said wall, are advantageously embodied in the form of means of the screwdriver type operating by the axial fitting-in of a member with a male tip into a cooperating member with a female tip through the said wall.
11. System according to any of the preceding claims, wherein the frame is equipped with presence sensors which detect what model of distributing element has just been mounted, in a situation appropriate to its operation, on the connection surface, and which transmit the information to a computer for managing the installation which has available previously recorded data, as a function of which it automatically calculates what motorising elements will then have to be started up, and which orders the bringing-into-operation of said elements accordingly.
12. System according to claim 11, wherein, for each mode of distribution by spreading-out or by channelling, there are available, in the memory of the management means, a number of series of operating parameters which have been previously defined in accordance with the possibilities of adjustment that suit each particular type of the tablets to be packaged.

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