WO2020127524A1

WO2020127524A1 - Device and method for conveying products

Info

Publication number: WO2020127524A1
Application number: PCT/EP2019/086011
Authority: WO
Inventors: Jean-Claude WAELDIN
Original assignee: Sidel Engineering & Conveying Solutions
Priority date: 2018-12-18
Filing date: 2019-12-18
Publication date: 2020-06-25
Also published as: FR3089965B1; FR3089965A1

Abstract

The present invention relates to a device for conveying products for a line for producing and treating said products, comprising at least one conveyor (1) provided with at least one section (100) in the form of a linear motor comprising at least one shuttle (2) for receiving at least one product, said shuttle (2) being driven electromagnetically by said linear motor along at least said section (100); along at least one portion of said section (100), at least one product-treatment station (3), said station (3) comprising at least one rotary element (4) for moving products provided with at least one support (5) for receiving a shuttle (2); characterised in that said conveying device comprises, for each support (5), means for reversibly securing a shuttle (2), preferably at the support (5). The invention also relates to the corresponding conveying method.

Description

DESCRIPTION

Title of the invention: Device and method for conveying products

The present invention enters the field of conveying products within an industrial line for the production and processing of said products.

In the sense of the present invention, the term "product" includes an individual object. Such a product is a container, like a bottle, rigid or semi-rigid. Such a container is intended to contain, in a non-exhaustive manner, a fluid, a liquid of powders or of granules, in particular of the food or cosmetic type.

In the context of the invention, a product can have any type of shape, symmetrical or not, regular or irregular. Preferably, a product has a specific shape, having an asymmetry, a non-regular section, or a flat bottom or a non-flat base. Thus, in particular, a product can therefore have a base or a circular, elliptical or oval, polygonal, in particular parallelepiped, or even complex section. Such products can also have flat or curved walls, straight or curved. They can have an orthogonal or inclined height with respect to at least one of their base, generally forming cylinders, cones or trunk of cones, or even trunks of spheres.

Preferably, but not limited to, such products with a specific form can be bottles intended for the agrifood sector, cleaning products and cosmetics (or FHPC for "Food, Home / Health and Personal Care").

In a known manner, within an industrial line, the products can receive several different successive treatments, ranging from the manufacture of the container by a plastic injection or stretch-blow molding operation to the packaging in batches of several grouped products. , notably by filling, closing with a cap and labeling the products individually.

The invention relates to the conveyance of products, preferably individually, for processing one by one, one after the other. Such conveying of the products takes place between the processing stations as well as inside each station. Currently, a problem in the conveying of products along a production line and through the stations which it comprises for each treatment to be applied to a product, lies in the transfers between the conveyors and the processing means of each post. Such transfers are limited in the case of stations providing linear processing of products, but they are also generally limited in rate and do not allow a large number of products to be processed. It is then necessary to multiply the linear stations, resulting in an additional cost of installation, but also an increase in the installation area, as well as substation maintenance operations.

It is for this reason that more and more stations are equipped with processing means in the form of a rotary element, of the carousel type, as for example in the case of a rotary filler. These rotary stations ensure higher rates by processing more products over the same period. However, in certain cases, it is necessary to transfer each product from the conveyor, generally linear, to one of the supports equipping the rotary element. A widely used solution consists of intermediate transfer means, in particular in the form of pitching screws and transfer wheels, using gripping of the products, generally one by one, at the entry of a station from the conveyor to support, and vice versa. It is easy to understand that the grip is dependent on the format of the product, in particular on its size and shape, making it difficult to compatible such an installation with different formats of products to be treated, in particular in the case of products having specific shapes. Another solution therefore consists in depositing each product in a receptacle within which a housing is formed which complements the specific shape of the product, in particular at its lower part. Such a receptacle has a flat base allowing it to be deposited on the surface of a traditional conveyor, in particular with an endless belt. Such a receptacle is commonly called a "bucket" or "puck". This bucket will then be moved along the production line and transferred from one station to another. Once again, there is the problem of transferring the bucket between the conveyor and the rotary element of the treatment station.

Further on, such a bucket can be supported by a cart or a shuttle. The supports of the rotary element of a station are then provided with housings making it possible to receive the bucket or the product, even the trolley or the shuttle, at the time of transfer during the passage of said support at the right of the conveyor during its rotation. . We understand the difficulty of synchronizing the linear conveying of the shuttles to operate such transfers to or from a support of the rotary element, while ensuring the continuity of supply of the flow of shuttles, so that all the supports of the rotary element successively receive a shuttle and the product it carries. Apart from the supports of the rotary element which must be dedicated to the shuttles, and consequently to the conveyor which transports them, the duration of each transfer from a shuttle to or from a support limits the speed of the rotary element, and by therefore the rate of the treatment center and, therefore, of the entire line of production. Thus, at present, for example in the case of the production of cosmetic products, the lines rotate at rates not exceeding 100 to 150 products per minute, while the rotary stations make it possible to process more than 200 products per minute.

In a related way, in order to improve the flexibility of production lines, conveyors have recently evolved using linear motor technology. Using this technology, several shuttles can be moved independently by electromagnetic attraction along the path of such a conveyor. An example of a linear motor type conveyor is described in document DE 10 2017 108558, showing in particular rolling means specific to each shuttle, in order to allow their travel on a curved portion of the conveyor. However, such linear motor conveyors are extremely expensive to install. As a result, only certain sections are equipped with a linear motor, while the rest of the conveyor uses conventional and less expensive technology. In addition, at present, linear motor type conveyors make it possible to move shuttles linearly along a production line, inducing the problems and drawbacks mentioned above, especially when transferring products to a rotary element d 'a treatment center. In this context, the shuttles are held on a guide rail, which is used for driving them under the effect of an electromagnetic attraction, said shuttles cannot be extracted from their rail.

The object of the invention is to overcome the drawbacks of the state of the art by proposing a device for conveying products within a production and processing line for said products, said device ensuring an improved transfer of each product between a conveyor and support for a rotary element of a processing station. Further on, the invention provides a conveyor with a section in the form of a linear motor ensuring the movement of shuttles by electromagnetic attraction. Therefore, it is possible for example to operate the transfer of a shuttle by modifying the electromagnetic attraction of said section, to move it at a given instant and in an indexed position to a dedicated support, from said section to the machine. rotary.

To do this, such a conveying device comprises

- at least one conveyor provided with at least one section in the form of a linear motor comprising at least one shuttle for receiving at least one product, said shuttle being driven electromagnetically under the action of said linear motor along at least said section;

- Along at least a part of said section, at least one product processing station, said station comprising at least one rotary product movement element provided with at least one support for receiving a shuttle shuttle;

characterized in that said conveying device comprises at least:

- For each support, reversible fixing means of said at least one shuttle, preferably at the support.

According to additional, non-limiting characteristics, said reversible fixing means can comprise at least one electromagnet.

Said section can be oriented tangentially with respect to said rotary element.

Said conveying device can comprise, for each support, mechanical locking means on receiving a shuttle, preferably at the level of the support.

Said conveying device may include means for referencing the position of a shuttle along at least said section relative to an indexed position specific to a support.

The invention also relates to a conveying method in which at least:

- Driving at least one shuttle supporting at least one product along at least one section in the form of a linear motor, said at least one shuttle moving along said section by electromagnetic attraction;

- Said at least one shuttle is transferred from said section to a support for receiving a rotary element of a station for processing said products;

characterized in that it consists at least of:

- Transfer said at least shuttle from said section to said at least one reception support by disengagement from the section and reception while holding on said support.

According to additional, non-limiting characteristics, such a conveying method can be transferred a shuttle from said section to said support at least by activation of at least one electromagnet, preferably mounted on said support.

A shuttle can be transferred from said support to another section by another electromagnetic attraction effected by said other section.

At the time of a transfer, the position of a shuttle can be referenced along a section opposite an indexed position specific to a support, in particular by managing the instant of said activation. Thus, the invention makes it possible to convey products through the movement of shuttles which are quickly transferred between a linear conveyor and a support for a rotary element of a treatment station, in particular in the case of a double electromagnetic action of the share of the section of the linear motor and an electromagnet of each support, increasing the rate of treatment and production.

Other characteristics and advantages of the invention will emerge from the detailed description which follows of non-limiting embodiments of the invention, with reference to the appended figures, in which:

[Fig. 1] schematically represents a simplified top view according to a first configuration of implementation of the conveyor device at a processing station of a production line;

[Fig. 2] schematically represents a simplified top view according to another configuration of implementation of the conveying device at a processing station of a production line; and

[Fig. 3] schematically shows a simplified top view of another configuration of the conveying device implemented along two successive treatment stations.

The present invention relates to the conveying of products along a production and processing line for said products.

To this end, the invention relates to a device for conveying said products.

Such a product can be a container, such as a bottle, rigid or semi-rigid. Such a container is intended to contain, in a non-exhaustive manner, a fluid, a liquid of powders or granules, in particular of the food or cosmetic type.

A product can have any type of shape, symmetrical or not, regular or irregular. Preferably, a product has a specific shape, having an asymmetry, a non-regular section, or a flat bottom or a non-flat base. Thus, in particular, a product can therefore have a base or a circular, elliptical or oval, polygonal, in particular parallelepiped, or even complex section. Such products can also have flat or curved walls, straight or curved. They can have an orthogonal or inclined height with respect to at least one of their base, generally forming cylinders, cones or trunk of cones, or even trunks of spheres. Preferably, but not limited to, such products with a specific form can be bottles intended for the agrifood sector, cleaning products and cosmetics (or FHPC for "Food, Home / Health and Personal Care").

Such a conveying device comprises at least one conveyor 1.

Said conveyor 1 comprises at least one section, preferably several sections abutted one after the other, continuously or not.

Each section ensures the movement of the products through suitable means, directly by receiving them on the upper face or by maintaining them otherwise, for example in suspension, or else indirectly by means of a suitable means, in particular within a bucket or shuttle 2. In addition, a shuttle 2 can receive one or more products, individually or grouped, directly or through the bucket. The shuttle 2 therefore cooperates directly with one or more products, or else via one or more buckets which it then comprises.

In addition, such a cup can be shaped and dimensioned to receive and maintain a product at least partially within it, such as for example the base of a product which is inserted and kept in a cavity complementary to the corresponding cup.

The products are loaded onto the shuttles 2 during an operation located upstream along the industrial line and are unloaded during an operation located downstream, the conveying device making it possible to route the shuttles loaded with products from the upstream downstream (but also empty, back or along a section between these two operations).

Several shuttles 2 run along the conveyor 1 and one and / or the other of its sections, carrying at least one product or empty.

A section may be rectilinear, comprising one or more straight portions, or may be curved, comprising at least one rounded portion, or may also be both, straight and curved portions succeeding one another.

As can be seen in Figure 3, several sections can be butted together, ensuring the continuity of product movements from one end to the other from the first to the last section. According to the configuration of FIG. 2, a conveyor 1 can comprise several sections separated from each other. Several sections therefore form the conveyor 1, continuously or discontinuously.

Along the sections of such a conveyor 1, the shuttles 2 therefore circulate in a translation, the sections forming a driving guide. In particular, each section can be in the form of at least one element extending longitudinally relative to the direction of drive of said shuttles. Such a longitudinal element can be a rail or a slide, along which each shuttle 2 slides.

Thus, the conveyor 1 essentially ensures the movement of the products linearly, in a straight line or along a curve, unlike a different movement, for example provided for rotation. In other words, the conveyor 1 essentially drives the products in a translation between two successive positions of said conveyor 1.

As such, according to the invention, the conveying device comprises at least one station 3 for processing products. Such treatment is preferably carried out individually, product by product, one after the other, such as for example filling or bottling, closing or even labeling.

A station 3 is positioned along at least part of a section 100 of the conveyor 1, as visible in the example of FIG. 1. Several stations 3 can be located at several locations in the same section 100 or at different positions of several sections 100, 101, as shown in the example in FIG. 2. In sum, one or more stations 3 can be positioned around the conveyor 1, at places in some of its sections 100. Said section 100 therefore runs along or terminates, in particular tangentially, a part of the periphery of each post 3 which it supplies with products.

As mentioned above, each station 3 is dedicated to the treatment of products, which must be taken care of there in order to undergo the envisaged treatment.

In this context, at least one processing station 3 is provided for rotation, unlike the conveyor 1 provided for linear. A station 3 then comprises at least one rotary element 4, in particular of the carousel or transfer wheel type. This mobile element 4 is therefore mounted in rotation and rotates about a central axis. The station 3 therefore ensures a displacement of the products essentially according to a rotation about said axis of the rotary element 4.

Thus, said section 100 runs along a part of the periphery of said rotary element 4.

Said rotary element 4 comprises at least one support 5 for receiving each shuttle 2. Such a support 5 is essentially located at the periphery or around the rotary element 4. Several supports 5 are preferably distributed along the edge of the rotary element 4, in particular spaced at angular intervals regular. Such supports 5 are optionally fixed to the structure of the rotary element 4, driven by its rotation.

Thus, said section 100 runs along a rotary element 4 at a point of passage or close to the passage of its supports 5.

Each support 5 is designed to receive a shuttle 2, loading it during a treatment cycle within the station 3. Such a cycle is generally carried out according to part of a revolution of the rotary element 4. A product therefore undergoes treatment within a station 3 while it is maintained by its shuttle 2.

A shuttle 2 is therefore transferred from section 100 of the conveyor 1 to a support 5, where it is received to rotate with the rotary element 4 while it undergoes the dedicated treatment of the station 3, before being transferred again from the support 5 towards the conveyor 1, at the same section 100 as visible in FIG. 1, or else at another section 101 as visible in FIG. 2, said zone being positioned on the periphery of the movable element 4.

In order to carry out the transfer of a shuttle 2, between a support 5 and the conveyor 1, namely from or to the conveyor 1 respectively to or from a support 5 of the rotary element 4, the invention uses a specific motorization d 'At least said section 100 of said conveyor 1. Advantageously, at least said section 100 is in the form of a linear motor. Consequently, this linear motor is equipped with at least one shuttle 2, preferably several shuttles 2. Each shuttle 2 is therefore driven electromagnetically along at least said section 100, preferably along several sections 100 of the conveyor 1 which are in the form of a linear motor. It is therefore the linear motor, in particular the cooperation of the rail forming a section 100, 101 with each shuttle 2, which ensures the movement (s) of each shuttle 2 along said conveyor 1 and relative to said rail. A linear motor therefore comprises at least one rail and at least one shuttle 2, forming at least one section 100 of the conveyor 1.

The use of a linear motorization for driving the shuttles 2 gives increased flexibility and cadence, in particular with greater accelerations and decelerations. In addition, the shuttles 2 can be moved independently, with a more precise indexed positioning.

Different linear motor technologies can be used to manufacture a section 100, as well as any other section of the conveyor 1. In this context, the invention will find a preferential application in the transfer of products, in particular shuttles 2, between at least the conveyor 1 and at least one treatment station 3, in particular a support 5 for receiving its rotary element 4 Advantageously, the support 5 comprises reversible fixing means for a corresponding shuttle 2. A support 5 cooperates with a shuttle 2 through said reversible fixing means, optionally mounted in whole or in part on the support 5, or in whole or in part on the shuttle 2.

According to one embodiment, such reversible fixing means are mechanical. They make it possible to maintain a shuttle 2 at the time of its transfer and once received within a support 5. As the case may be, the reversible fixing means may comprise an attachment element present on the shuttle 2 or the support 5 and cooperating with a complementary element respectively present on the support 5 or the shuttle 2. In another case, they may comprise a hooking means alone mounted on the shuttle 2 or the support 5, intended to grip and hold the support 5 respectively or the shuttle 2. The fixing means may in particular comprise elastic rapping means in the hooking position.

Therefore, for example, a support 5 may include a cell, shaped and dimensioned to receive a shuttle 2, while the reversible fixing means may include a retaining equipment, in particular locally controllable at least at said support 5, the shuttle 2, station 3, or at the level of the conveyor 1 or of a command center said production line.

According to another preferred embodiment, such reversible fixing means comprise at least one electromagnet. Said electromagnet can be mounted on said shuttle 2 or said support 5.

Consequently, the transfer of a shuttle 2 from said section 100 to a reception support 5, on the outward journey or at the entrance (or in other words at the time of its separation from its linear motor), comprises the disengagement of the shuttle 2 from section 100.

Preferably, the transfer from said section 100 to a support 5 can be carried out at least by activating at least said electromagnet fitted to said support 5. Preferably, the force of attraction of the electromagnet is greater than the attraction electromagnetic of the linear motor of said section 100, so that the shuttle 2 is attracted and transferred to the support 5. Such a transfer can also be synchronized with a stop of the electromagnetic attraction of the section 100, releasing the shuttle 2 which is then attracted towards the electromagnet of the support 5.

A similar operation is carried out in the opposite direction, on leaving or returning, during the transfer of a shuttle 2 from a support 5 to a section 100. The electromagnet of the removable fixing means of a support 5 and the shuttle are deactivated. 2 he was carrying is attracted by the electromagnetic force of section 100.

Such a transfer can also be synchronized with a restarting of the electromagnetic attraction of the section 100, to again attract the shuttle 2 which is then attracted to the section 100.

Note that the shuttles 2 are provided removable relative to the linear motor used for a section 100 of the conveyor 1. In particular, each shuttle 2 can be removable at a part of the section 100, according to a segment provided for transfer to or from the rotary element 5. In other words, if each shuttle 2 is held on the guide element, such as the rail or the slide, of the section, such support can be canceled, retracted or disengaged, in order to authorize its transfer to this section, in particular at the entry and exit levels.

The input and the output are understood with respect to the processing station 3, with each station 3 corresponding an input and an output. The input corresponds to a forward transfer from section 100 to a support 5, while the output corresponds to a return transfer from a support 5 to the same section 100 or another section 101. As shown in the examples in FIGS. 1 and 3, the entry and exit of a station 3 are located at the same location or approximately at the same location in the section 100. As visible in the example of FIG. 2, the entry is located on a first section 100 and the exit is distinct, located on another section 101. It will be noted that, in this precise case, at exit, the attraction of section 101 can be maintained constantly, to directly recover the shuttles 2 after their treatment, whereas it it may be necessary to cut the attraction during an input transfer, from section 100 to a support 5.

A preferred embodiment of a device according to the invention comprises a conveyor 1 provided with a section 100 at the inlet and a section 101 at the outlet, distinct from one another. At least these sections 100, 101 are provided in the form of a linear motor.

Preferably, all of the sections of the conveyor 1 are in the form of one or more linear motors. Preferably, in order to improve the transfer at the input and / or at the output, a section 100 can be oriented tangentially with respect to said rotary element 4. In other words, the circular trajectory of a support 5 follows a curve including a tangent is parallel or substantially parallel to a portion of section 100. It is then at this portion that the transfer of a shuttle 2 is carried out.

In addition, at each tangent, the distance between the rotary element 4 and a section 100 can be such that the electromagnetic attraction of said electromagnet determines the transfer by activating or deactivating the electromagnet.

According to a particular embodiment, the device can comprise mechanical locking means on receiving a shuttle 2. These locking means can be mounted in whole or in part on each shuttle 2 or else in whole or in part on each support 5. Therefore, a shuttle 2 received by a support 5 is maintained during its rotational movement. In addition, such mechanical locking can improve the holding effected by the electromagnet, for example in the case of a large force applied to the product during a specific treatment, such as in particular when closing a container with a stopper. , with a forceful insertion. In addition, such a mechanical locking ensures the maintenance of a shuttle 2 within a support 5, even in the event of a breakdown, malfunction or electrical outage.

It will be noted that this locking occurs after the outward transfer, the means being unlocked by means of the return transfer.

According to one embodiment, the conveying device can comprise means for referencing the position of a shuttle 2 along at least said section 100 relative to an indexed position specific to a support 5. In sum, it is possible to position a shuttle 2 at a precise location of said support 5, as a function of the synchronization of the transfer from a section 100 to a support 5. In other words, the referencing means make it possible to modify the instant of transfer of a shuttle 2 to a support 5, according to a defined indexed position, centered or not relative to said support. The definition of this indexed position may depend in particular on the shape of the product to be treated, for example in the case of a bottle to be filled and having an offset opening on one side: it is then possible to center this opening, by positioning the shuttle 2 in an indexed position, so that said opening is found under the filling nozzle. The same item 3 then makes it possible to process different product formats, without modifying the constituent elements, only by modifying the referencing of the shuttles 2. FIG. 3 shows two stations 3 having different referencing of the shuttles 2 on the supports 5 of their respective rotary element 4.

This referencing is improved by the precision of a linear motorization used for a section 100 of the conveyor 1.

The invention also relates to a method for conveying products within a production line and processing said products.

In addition, as mentioned above, such a process is aimed at conveying and essentially transferring products between a section 100 of said conveyor 1 and a support 5 of a rotary element 4 of a processing station 3.

According to this method, at least, at least one shuttle 2 is driven supporting at least one product along at least one section 100 in the form of a linear motor. Each shuttle 2 moves along said section 100 by electromagnetic attraction.

Advantageously, said shuttle 2 is transferred from said section 100 to a support 5 for receiving a rotary element 4 from a station 3 for processing said products. In short, the invention makes it possible to go from a linear drive along the rail of a section 100 of the linear motor, with a drive under the effect of an electromagnetic attraction, to a rotary drive by the support 5 of the 'rotary element 4, where a shuttle 2 is found maintained, without relative movement relative to its support 5.

Preferably, such a shuttle transfer 2 between the section 100 and a support 5 can be carried out without stopping the shuttle 2, which is constantly subject to movement along said section 100. According to another possibility, during the transfer from the section 100 towards a support 5, a shuttle 2 can stop temporarily, in particular the time that a support 5 passes in proximity and comes to embark said shuttle 2 from said section 100.

In a first embodiment, the reception of a shuttle 2 is effected by disengagement from the section 100 accompanied simultaneously or essentially simultaneously with a reception while holding on a support 5.

Advantageously, the method can consist in transferring a shuttle 2 from said section 100 to a support 5 by activation of at least one electromagnet equipping said support 5. The disengagement can then occur only due to the attraction of the electromagnet, more stronger than the electromagnetic attraction of the guide rail of the linear motor. A transfer in the opposite direction can be provided in a similar manner, preferably by deactivating the electromagnetic attraction of the electromagnet of a support 5 when it passes as close as possible, notably tangentially, to the rail of the section 100.101 The shuttle 2 returns then engage on the linear motor of said section 100, 101 to circulate there again longitudinally.

In addition, a shuttle 2 can be transferred from said support 5 to another section 101 by another electromagnetic attraction effected by said other section 101. Consequently, the starting section 100, where a transfer is effected at the entrance of station 3 , may be different from the arrival section, where a return transfer is made at the exit from said station 3.

As mentioned above, the method can include, at the time of a transfer, outward and / or return, referencing the position of a shuttle 2 along a section 100 opposite an indexed position specific to a support 5, in particular by managing the instant of said activation. In other words, the position for hanging or boarding a shuttle 2 is shifted to a support 5, by modifying one of the parameters of the outward transfer, such as for example the position of a shuttle 2 relative to in section 100, whether or not stopped, or even the instant of activation of the electromagnet of a support 5.

Thus, the conveyor according to the invention, because of its device and its method, makes it possible to improve the transfer of the shuttles 2 between said conveyor 1 and a station 3 for the treatment of the products thus transported. The invention notably makes it possible to speed up the production and processing rates of said products 2, which can go up to 200 units per minute, or even more.

The invention also offers increased flexibility, making it possible to manage different product formats, with a minimum of intervention on the components of the treatment stations 3, but by adapting the referencing of the position of care according to the format specific to the products to be treated.

Claims

1. Product conveying device for a production and processing line for said products, said conveying device comprising

- at least one conveyor (1) provided with at least one section (100) in the form of a linear motor comprising at least one shuttle (2) for receiving at least one product, said shuttle (2) being driven by electromagnetically under the action of said linear motor along at least said section (100);

- along at least part of said section (100), at least one station (3) for processing products, said station (3) comprising at least one rotary element (4) for moving the products provided with less a support (5) for receiving a shuttle (2);

characterized in that said conveying device comprises at least:

- For each support (5), reversible fixing means of said at least one shuttle (2), preferably at the level of the support (5).

2. Conveying device according to the preceding claim, characterized in that said reversible fixing means comprise at least one electromagnet.

3. Conveying device according to any one of the preceding claims, characterized in that said section (100) is oriented tangentially with respect to said element (4).

4. Conveying device according to any one of the preceding claims, characterized in that it comprises, for each support (5), mechanical locking means for receiving a shuttle (2), preferably at the support ( 5).

5. Conveying device according to any one of the preceding claims, characterized in that it comprises means for referencing the position of a shuttle (2) along at least said section (100) relative to an indexed position specific to a support (5).

6. Method for conveying products within a production and processing line for said products, in which at least:

- at least one shuttle (2) supporting at least one product is driven along at least one section (100) in the form of a linear motor, said at least one shuttle (2) moving along said section ( 100) by electromagnetic attraction;

- Transferring said at least one shuttle (2) from said section (100) to a support (5) for receiving a rotary element (4) of a station (3) for processing said products;

characterized in that it consists at least of:

- Transfer said at least shuttle (2) from said section (100) to said at least one support (5) for receiving by disengagement from the section (100) and receiving while holding on said support (5).

7. Conveying method according to the preceding claim, characterized in that a shuttle (2) is transferred from said section to said support (5) at least by activation of at least one electromagnet, preferably mounted on said support (5) .

8. Conveying method according to any one of claims 6 or 7, characterized in that a shuttle (2) is transferred from said support (5) to another section (101) by another electromagnetic attraction effected by said other section ( 101).

9. Conveying method according to any one of claims 7 to 9, characterized in that at the time of a transfer, reference is made to the position of a shuttle (2) along a section (100) in screw with respect to an indexed position specific to a support (5), in particular by managing the instant of said activation.