FR3114310A1 - CONVEYOR PROVIDED WITH TWO BELTS ATTRACTING MUTUALLY BY MAGNETIC FOR THE TRANSPORT OF NON-MAGNETIC LAYERS, AND APPLICATION OF SUCH A CONVEYOR TO THE MANUFACTURE OF WHEEL BANDS - Google Patents

Abstract

The present invention relates to a conveying device (1) intended to convey a web (2) and comprising a first strip (3) and a second strip (4) which are mounted so as to move in the same drive direction (FWD). and which overlap to form a conveying air gap (5) intended to receive the sheet (2) and to cause said sheet to move along the drive direction (FWD), said conveying device comprising a magnetic pinching system (10 ) which comprises a magnetization member (11) associated with the first strip (3) and a ferromagnetic member (12) associated with the second strip (4), so as to be able to generate a force (F10) of mutual attraction between the first band (3) and the second band (4), and thus ensure, in the air gap (5), a maintenance of the web (2) by pinching of said web between said first and second bands (3, 4) . Figure 2

Description

CONVEYOR PROVIDED WITH TWO BELTS ATTRACTING MUTUALLY BY MAGNETIC FOR THE TRANSPORT OF NON-MAGNETIC LAYERS, AND APPLICATION OF SUCH A CONVEYOR TO THE MANUFACTURE OF WHEEL BANDS

The present invention relates to the field of conveying devices, and more particularly conveying devices making it possible to convey sheets to a use station, for example to a building drum in the context of a manufacture of wheel tyres.

Such an invention finds application in particular in the manufacture of pneumatic tires or even self-supporting so-called "airless" tires which comprise a tread which is supported not pneumatically by an overpressure gas contained in a sealed enclosure, but in a pneumatic manner. mechanical by spokes or even by a solid disc.

It is known, particularly in the field of the manufacture of wheel tyres, to transport reinforcing plies by means of belt conveyors.

To avoid relative sliding, and therefore poor positioning, wrinkling, poor control of the transport speed, or even a fall, of the reinforcing ply which is placed on the conveyor belt, it is known to use holding systems which press said web against said conveyor belt.

There are thus vacuum holding systems, which make it possible to create a vacuum through suction orifices distributed over the conveyor belt, which conveyor belt then acts on the reinforcement ply like a suction cup. However, such systems are relatively complex, expensive and bulky.

It is also possible, when the reinforcing ply contains reinforcing threads made of a ferromagnetic material, such as steel, to use a magnetic holding system, which comprises a permanent magnet or an electromagnet placed on the back of the strip of the conveyor to draw the reinforcing ply through and against said conveyor belt. Of course, such holding systems are ineffective in the case where the reinforcing ply does not contain, or not enough, ferromagnetic elements.

The objects assigned to the invention therefore aim to remedy the aforementioned drawbacks and to propose a versatile conveying device, which allows reliable routing of any type of reinforcement ply, ferromagnetic or not.

The objects assigned to the invention are achieved by means of a conveying device intended to convey a lap, said conveying device comprising a first strip, mounted movable in a direction called the "driving direction", as well as a second strip which is also movably mounted in the same drive direction and which is placed opposite the first strip so as to overlap said first strip to form with the first strip a conveying air gap intended to receive the web and driving said web in displacement along the drive direction common to the first and second strips, said conveying device being characterized in that it comprises a magnetic pinching system which comprises a magnetization member associated with the first strip and a ferromagnetic member associated with the second band, so as to be able to generate a force of mutual attraction between the first band and the second band, and thus ensure, da ns the air gap, maintaining the web by pinching said web between said first and second bands.

Advantageously, the magnetic pinching system makes it possible to force, in the air gap, the mutual approximation of the first and second strips against the ply engaged in the air gap, so as to cause a tightening of the ply present in the air gap between said first and second bands, so that the synchronous driving of the first and the second band in the direction of drive also causes, by mechanical friction, the driving of the sheet in displacement integrally with the first and second strips, even if said layer is, in itself, insensitive to magnetization.

The use of a magnetic system associated with a relative flexibility of the first and second bands, as well as, where appropriate, with a relatively large thickness of the air gap, also allows the conveying device to easily adapt to different layer thicknesses.

Other objects, characteristics and advantages of the invention will appear in more detail on reading the description which follows, as well as with the aid of the appended drawings, provided for purely illustrative and non-limiting purposes, among which:

FIG. 1 illustrates, according to an overall view in perspective, an example of an installation implementing a conveying device according to the invention, here for conveying sheets to a drum in order to wind said sheets on said drum .

FIG. 2 represents the installation of FIG. 1, according to a side sectional view including an enlarged detail view, so as to show the arrangement of the air gap formed by the first and second bands of the conveying device as well than the associated magnetic pinch system.

The present invention relates to a conveying device 1 intended to convey a sheet 2.

For convenience of description, it is considered that the sheet 2 extends in length in a direction called "longitudinal direction" X, in width in a direction called "lateral direction" Y, perpendicular to the longitudinal direction X, and in thickness in a direction called "vertical direction" Z perpendicular to the two previous ones.

Said ply 2 can be formed in a natural textile material, a metallic material, or, preferably, based on a polymer material, more preferably based on an elastomeric material of the rubber or resin type.

Preferably, the ply 2 is formed in a composite material comprising a matrix, for example in rubber or in resin, in which reinforcing threads are embedded. According to a first implementation variant, said reinforcing threads can extend continuously along the longitudinal direction X, parallel to each other and parallel to the lateral edges of the ply 2. According to a second implementation variant, the reinforcing threads can extend parallel to each other, continuously from one side edge of the ply 2 to the other side edge of the ply, forming a non-zero angle, called "ply angle", relative to the longitudinal direction X. By way of indication, said ply angle may preferably be between 15 degrees and 35 degrees. Advantageously, by superimposing on the same tire crown two plies having different ply angles, where appropriate opposite signs, it is possible, in a manner known per se, to create a tire reinforcement with crossed reinforcements, which is particularly rigid.

Whatever their arrangement and their orientation in the ply 2, the reinforcing threads can be made of metal, of polymer fibers, for example of polyamide (“Nylon”) or aramid (“Kevlar”), of natural textile fiber, for example example cotton, fiberglass, or carbon fiber.

Particularly preferably, the ply 2 forms a glass-resin composite, comprising a resin matrix, for example a vinyl ester resin, said resin matrix being loaded with reinforcing threads formed from glass fibers, said reinforcing threads being able to extend, as indicated above, either parallel to the longitudinal direction X of the ply 2, or transversely by forming a non-zero ply angle, for example between 15 degrees and 35 degrees with said longitudinal direction X. Said reinforcing threads are preferably continuous over the entire length, or respectively over the entire width, of the ply 2.

As is particularly clearly visible in FIG. 2, the conveying device 1 comprises a first strip 3, which is mounted so as to move in a direction FWD called the "drive direction" FWD, as well as a second strip 4 which is also movably mounted in the same drive direction FWD and which is placed opposite the first strip 3 so as to overlap the said first strip 3 to form with the first strip 3 a conveying air gap 5 intended to receive the web 2 and to drive said web 2 in displacement according to the drive direction FWD common to the first and second bands 3, 4.

The drive direction FWD advantageously corresponds to the longitudinal direction X of the sheet 2, and the height of the air gap 5, considered perpendicular to the respective faces of the first and second strips 3, 4 which delimit the air gap 5, corresponds to the vertical direction Z along which said sheet 2 extends in thickness.

The respective faces of the first and second strips 3, 4, called "contact faces", which delimit the air gap 5 and thus come into contact with the sheet 2 by each of the two corresponding opposite faces of the sheet 2, called "visible faces (here the two faces of the largest dimensions of the sheet), are preferably planar, preferably parallel to each other and parallel to the drive direction FWD, and in a particularly preferential way are substantially or even exactly horizontal, which, in particular , facilitates the installation and the stable maintenance of the web 2 within the conveying device 1.

Preferably, the first band 3 is located below the second band 4, to come to support the underside of the web 2, while the second band 4 is placed above to come to bear on the upper face of said tablecloth 2.

Preferably, as partially symbolized in FIG. 2, the first band 3 is formed by a first toothed belt and/or the second band 4 is formed by a second toothed belt.

A simple, robust, powerful and precise drive of said first and second bands 3, 4 is thus obtained by means of sprockets 6, and therefore efficient transport of the sheet 2.

Preferably, the first and/or respectively the second toothed belt has a smooth, or relatively smooth, contact face facing the air gap 5, to come into contact with the ply 2, and, on the back of said visible face, opposite the air gap 5, a notched hidden face which allows the sprockets 6 to mesh with the toothed belt in question in order to drive it in displacement and, if necessary, to adjust the tension of said belt .

The driving of the first and second bands 3, 4, and more particularly of the sprockets 6, may be ensured by one or more motors 7, preferably electric motors 7, controlled by an appropriate control unit.

According to the invention, and as can be seen in particular in FIG. 2, the conveying device 1 comprises a magnetic pinching system 10 which comprises on the one hand a magnetization member 11 associated with the first strip 3 and on the other hand a ferromagnetic member 12 associated with the second band 4, so as to be able to generate a force F10 of mutual attraction between the first band 3 and the second band 4, and thus ensure, in the air gap 5, a maintenance of the ply 2 by pinching said ply 2 between said first and second strips 3, 4.

By “ferromagnetic”, is meant any object or material, preferably a metallic material, for example a steel, which has the ability to be attracted by a magnetic field, and more particularly by a magnet.

Thus, the ferromagnetic member 12 associated with the second band 4 is attracted by the magnetization member 11 associated with the first band 3, so that said magnetization member 11 and said ferromagnetic member 12 cooperate to create the attraction force F10 which tends to bring the first and second strips 3, 4 closer to each other, and therefore to compress the air gap 5 and the web 2 located there.

Advantageously, the magnetic pinching system 10 therefore makes it possible to force the mutual approximation of the first band 3 and the second band 4 against each other, and against the sheet 2 placed between these strips 3, 4, in one direction, here the vertical direction Z, which is perpendicular to the drive direction FWD, and which is normal to the contact faces of said first and second strips 3, 4 and to the corresponding visible faces of the web 2, so that the sheet 2 is thus sandwiched between said first and second strips 3, 4, in the air gap 5, and compressed in its thickness by a normal force, which corresponds to the force F10 of attraction.

Advantageously, this normal force resulting from the attraction force F10 is sufficient to prevent an undesired relative displacement of the sheet 2 with respect to the first and second strips 3, 4, and more particularly to generate friction of the sheet 2 on the contact faces of the first and second strips 3, 4 which is sufficient to, in the longitudinal direction X, allow the strips 3, 4 to drive the web 2 along the drive direction FWD, and, in the lateral direction Y, avoid a lateral sliding of the ply 2 on the contact face of the first and/or second strip 3, 4.

The sheet 2, thus firmly held by the bands 3, 4, can therefore be transported precisely and reliably to its destination.

Advantageously, the use of a magnetic attraction force F10 which acts on the strips 3, 4, at a distance, through the gap 5 and therefore through the thickness of the layer 2, without being dependent on the nature of the transported sheet 2, allows the conveying device 1 to tighten, by means of the first and second bands 3, 4, and to convey, any type of sheet 2, and in particular a non-magnetic sheet 2 which cannot itself be attracted and held by the magnetization member 11.

As an indication, the magnetic pinching system 10 may be sized to generate an attraction force F10, and therefore a normal clamping force, the resultant of which, considered in the vertical direction Z, will be substantially between 50 N and 100 N , and/or, equivalently, a pinching pressure, reduced to the total area, considered in projection in a plane normal to the vertical direction Z in which the clamping force is applied, of the visible faces of the web 2 which are actually located in the air gap 5 and bearing against the first and the second band 3, 4, which is between 150 Pa and 350 Pa.

To allow adaptation of the air gap 5 to the thickness of the ply 2, the first and second strips 3, 4 will preferably be made of a flexible material, preferably rubber-based, which gives said strips 3, 4 a certain ability to deform reversibly on the one hand in bending, that is to say by bending and being able to modify their radius of curvature in a plane normal to the lateral direction Y, and therefore containing the direction d FWD drive, such as the cutting plane used for Figure 2, and/or on the other hand in elastic compression in the vertical direction Z.

On the other hand, said first and second bands 3, 4 will preferably have reinforcing threads, continuous and parallel to the drive direction FWD, so as to present a quasi-inextensibility in longitudinal traction, according to the drive direction FWD.

By way of indication, and in particular to facilitate the insertion of the front edge of the ply 2 into the gap 5, the height of said gap 5 when empty, that is to say in the absence of ply 2, considered according to vertical direction Z, may be chosen to be non-zero, and for example represent, in a relative manner, between 50% and 100% of the thickness of the slick that is to be transported (said thickness of the slick being considered at rest, in -apart from any vertical compression), and/or, absolutely, be between 1 mm and 3 mm.

According to a possible alternative embodiment, the first strip 3, respectively the second strip 4, may be formed in one piece over the entire width of the web 2, and more generally over the entire width of the air gap 5 and of the device conveyor 1.

However, for convenience of construction, in particular in order to use strips 3, 4 of standardized format and therefore inexpensive, and as shown in FIG. 1, the first strip 3, and/or respectively the second strip 4, may be formed by the juxtaposition, in the lateral direction Y, of several initially separate strips, preferably identical, which are paired by being joined by their edges, and driven by the same drive system.

In absolute terms, one could envisage the magnetization member 11 associated with the first band 3 being integrated into the first band 3, for example in the form of magnets embedded in said first band 3.

However, preferably, the magnetization member 11 associated with the first strip 3 is formed by a magnetized sole 13, arranged on the back of the first strip 3, opposite the air gap 5, and on which said first strip 3 moves, preferably by sliding, when said first strip 3 is driven along drive direction FWD.

Said sole 13 preferably forms a plate, preferably of a width greater than the width of the ply 2, which offers the first strip 3 a flat support surface, which guarantees precise and stable guidance during the relative movement of the first strip 3 with respect to said sole 13, as well as good support of the first strip 3 and of the ply 2 carried by the latter.

Preferably, said support surface thus offered to the first strip 3 by the sole 13 is horizontal, which in particular allows the sole 13 to compensate for the weight of the first and second strips 3, 4 and of the ply 2.

Advantageously, the sole 13 thus forms an anvil which solidly and stably supports the two bands 3, 4 and the sheet 2 against gravity, but also against the force F10 of attraction exerted by said sole 13 on the second band 4.

The sole 13 is preferably fixed, and as such secured to the frame of the conveying device 1 which carries the strips 3, 4 and relative to which said strips 3, 4 move in the drive direction FWD.

The sole 13 can be formed intrinsically of a magnet, that is to say of a block of ferromagnetic material to which a permanent magnetic moment will have been conferred.

Alternatively, the sole 13 may be formed in a plate of metallic material (preferably ferromagnetic), or of polymer material, in or on the back of which one or more magnets or electromagnets will be placed. As an indication, four identical permanent magnets can be distributed within the sole 13, each developing an attractive force of the order of 15 N, to obtain a total attractive force F10 of the order of 60 N.

Furthermore, the surface of the sole 13 in contact with the first strip 3, here more particularly in contact with the hidden face of the first strip 3 which slides on said sole 13, may preferably be provided with a non-stick coating. , for example either in a self-lubricating metallic material based on copper, or in a polymeric material with a low coefficient of friction, such as PTFE.

Alternatively, the sole 13 could be lined with a plurality of rollers mounted in free rotation on said sole, along axes of rotation parallel to the lateral direction Y, and arranged in series one behind the other along the longitudinal direction X, in order to form a carpet of rollers on the upper face of the sole 13 which receives the back of the first strip 3.

This being the case, for simplicity of construction, it is preferable to use a sole 13 forming a solid and immobile plate, in contact with which the sheet moves by sliding.

Preferably, magnetization member 11 associated with first strip 3 comprises at least one permanent magnet or at least one electromagnet.

A permanent magnet has the particular advantage of simplicity and robustness.

An electromagnet makes it possible to control the device more finely, and in particular to adjust the intensity of the magnetic attraction force F10 according to the thickness of the sheet 2, the rigidity of said sheet, and/or the coefficient of friction between the strip 3, 4 considered and the constituent material of the ply 2.

Furthermore, an electromagnet advantageously allows the magnetic pinch system 10 to alternately adopt a deactivated configuration, in which the electromagnet is not powered so that the force F10 of magnetic attraction between the first and second bands 3, 4 is substantially zero, so that said first and second strips are relatively loose, which facilitates the introduction of the sheet 2 into the air gap 5, and an activated configuration, in which the electromagnet is powered so as to generate the force F10 of desired attraction, and thus force the mutual approximation of the bands 3, 4 on either side of the sheet 2, and therefore the tightening of said sheet 2, in compression in the vertical direction Z.

Preferably, as indicated above, the first strip 3 contains reinforcing threads.

Preferably, these reinforcing threads extend continuously parallel to the longitudinal direction X, and therefore parallel to the drive direction FWD, in order to give the first strip 3 good traction capacity, and quasi-inextensibility, according to said drive direction FWD.

Advantageously, and whatever their arrangement within the first strip 3, these reinforcing threads will preferably be non-ferromagnetic.

Indeed, if we consider the use of a magnetization member 11 external to the first band 3, and in particular the use of a magnetized sole 13 as described above, it is not useful that the first band 3 has in itself ferromagnetic properties.

Such reinforcing threads could thus be made of textile fibers or of polymer fibers, and for example preferably made of aramid (“Kevlar”).

Advantageously, it will thus be possible to use non-metallic reinforcing threads, which are therefore particularly light and flexible, while being very resistant, in particular in traction, and which, moreover, do not disturb the magnetic field generated by the magnetization 11.

Preferably, as shown in Figure 2, the ferromagnetic member 12 associated with the second strip 4 is formed by one or more ferromagnetic inserts integrated into said second strip 4.

Thus, advantageously, it is the second strip 4 itself which intrinsically has the ability to react to the magnetic field generated by the magnetization member 11 associated with the first strip 3, and to be attracted towards and against said first strip 3. In particular, such an arrangement allows the ferromagnetic member 12 to accompany said second strip 4 when the latter performs, if necessary, a slight movement in the vertical direction Z, with respect to the first strip 3, and where appropriate with respect to sole 13, to approach said first strip 3, respectively said sole 13, in order to come into contact with web 2 and to press said web 2 against first strip 3 (and, if appropriate, against the sole 13 which supports said first band 3).

The conveying device 1 thus has a particularly simple, compact structure with a long service life.

In absolute terms, the ferromagnetic member 12 of the second strip 4 could be "active", the inserts being able for this purpose to be formed by small permanent magnets or by a magnetic film which would be embedded in the thickness of the second strip 4, or attached to one face of said second strip 4.

However, the ferromagnetic member 12 of the second band 4, and more particularly the inserts constituting said ferromagnetic member 12, will preferably be "passive", in that they will not have a permanent magnetic moment, and will simply be attracted by the external field generated by the magnetization member 11 associated with the first band 3.

More preferably, as shown diagrammatically in dotted lines in FIG. 2, the second strip 4 comprises a matrix 14 made of polymer, preferably rubber, in which are embedded one or more metallic reinforcing threads 15 forming the ferromagnetic inserts constituting the ferromagnetic member 12.

Thus, one can advantageously use the same structural element of the second strip 4, here a set of reinforcing threads 15, to provide a dual function, namely on the one hand a reinforcing function to ensure the solidity and the rigidity (inextensibility ) of the second strip 4 in tension in the drive direction FWD, and on the other hand a ferromagnetic function making it possible to generate the force F10 of mutual attraction of the strips 3, 4 and therefore the tightening of the sheet 2.

It is thus possible to simplify the conveying device 1 and reduce its cost.

Preferably, the first strip 3 and the second strip 4 mutually overlap along the drive direction FWD, to form the air gap 5, over a length called "common length" L5 which is between 500 mm and 1000 mm, preferably between 800 mm and 850 mm.

The air gap 5 will thus have a significant length, which allows the sheet 2 to be effectively supported and precisely guided by the first and second bands 3, 4.

Advantageously, the magnetic pinching system 10 can then preferably be distributed over a total length, called "active length" L10, considered along the drive direction FWD, which represents between 75% and 99%, preferably between 85% and 95% of said common length L5.

Advantageously, the force F10 of magnetic attraction, and therefore the clamping force of the sheet 2 between the bands 3, 4, is distributed relatively evenly over a long length, and therefore over a large surface, which ensures a maintenance that is both effective and very respectful of the tablecloth 2.

Preferably, this active length L10 is, in practice, the length of sole 13 considered along the longitudinal direction X.

In absolute value, the active length L10, or, in particular, the length occupied by the sole 13, can as an indication be between 700 mm and 800 mm, for example of the order of 775 mm (at +/- 5 mm).

Of course, the invention also pertains as such to a manufacturing installation 100 which comprises a drum 101 as well as a conveying device 1 according to the invention for conveying and laying reinforcing plies 2 by winding on said drum 101.

As can be seen in FIG. 1, the central axis of rotation of the drum 101 will preferably be arranged parallel to the lateral direction Y, and therefore perpendicular to the drive direction FWD.

Said drum 101 will present its apparent radially outer surface facing the outlet of the air gap 5, in order to receive the web 2 exiting from the conveying device 1.

Preferably, the sheet 2 will be arranged to close on itself, around the drum 101, after having traveled a complete turn (and preferably a single and unique turn) on the drum 101, around the axis of rotation of the last.

If necessary, the longitudinal ends of the sheet will be arranged so as to be able to operate an edge-to-edge junction at the end of the winding turn. Preferably, said longitudinal ends will be bevelled for this purpose, according to the ply angle, and therefore parallel to the reinforcing threads.

The invention finally relates to a method implementing an installation 100 according to the invention, and, more particularly, a wheel tire manufacturing method during which an installation 100 above is used to wind a sheet on the drum 101 2 reinforcement which is intended to form a reinforcement of the tire and which is formed of a non-ferromagnetic composite material having a polymer matrix, for example based on rubber or resin, in which are integrated non-ferromagnetic reinforcing elements, such as fiberglass.

Particularly preferably, said reinforcing ply 2 will be devoid of metal reinforcements, and formed by a resin-fiberglass composite as mentioned above, whose reinforcing threads, made of fiberglass, are intended to form, depending on whether they are arranged parallel to the longitudinal direction X or obliquely according to a ply angle, circumferential reinforcements of the tire or else, respectively, in combination with the reinforcements of other plies superimposed on each other, cross reinforcements within said bandage.

Of course, the invention is in no way limited to the variant embodiments described in the foregoing, the person skilled in the art being in particular able to isolate or freely combine one or the other of the aforementioned characteristics. or to substitute equivalents for them.

Claims (10)

Conveying device (1) intended to transport a lap (2), said conveying device comprising a first strip (3), mounted so as to move in a direction called the "driving direction" (FWD), as well as a second strip ( 4) which is also movably mounted in the same drive direction (FWD) and which is placed facing the first strip (3) so as to overlap said first strip (3) to form with the first strip a conveying air gap (5) intended to receive the lap (2) and to drive said lap in displacement along the drive direction (FWD) common to the first and second strips (3, 4), said conveying device being characterized in that it comprises a magnetic pinching system (10) which comprises a magnetization member (11) associated with the first strip (3) and a ferromagnetic member (12) associated with the second strip (4), so as to to be able to generate a force (F10) of mutual attraction between the first strip (3) and the second strip (4), and thus ensure, in the air gap (5), a maintenance of the sheet (2) by pinching of said sheet (2) between said first and second strips (3, 4). Device according to Claim 1, characterized in that the magnetization member (11) associated with the first strip (3) is formed by a magnetized sole (13), placed on the back of the first strip (3), at the opposite the air gap (5), and over which said first strip (3) moves, preferably by sliding, when said first strip (3) is driven along the driving direction (FWD). Device according to Claim 1 or 2, characterized in that the magnetization member (11) associated with the first strip (3) comprises at least one permanent magnet or at least one electromagnet. Device according to one of Claims 1 to 3, characterized in that the first strip (3) contains non-ferromagnetic reinforcing threads, for example made of aramid. Device according to one of the preceding claims, characterized in that the ferromagnetic member (12) associated with the second strip (4) is formed by one or more ferromagnetic inserts integrated into the said second strip. Device according to Claim 5, characterized in that the second strip (4) comprises a polymer matrix, preferably rubber, in which are embedded one or more metallic reinforcing threads (15) forming the ferromagnetic inserts constituting the ferromagnetic member (12). Device according to one of the preceding claims, characterized in that the first strip (3) and the second strip (4) mutually overlap along the drive direction (FWD), to form the air gap (5), on a length called "common length" (L5) of between 500 mm and 1000 mm, preferably between 800 mm and 850 mm, and in that the magnetic pinching system (10) is distributed over a total length, called "length active” (L10), considered according to the drive direction (FWD), which represents between 85% and 95% of said common length (L5). Device according to one of the preceding claims, characterized in that the first band (3) is formed by a first toothed belt and/or in that the second band (4) is formed by a second toothed belt. Manufacturing installation (100) comprising a drum (101) as well as a conveying device (1) according to one of the preceding claims for conveying and laying reinforcing plies (2) by winding on said drum (101). Method of manufacturing a wheel tire during which an installation (100) according to the preceding claim is used to wind onto the drum (101) a reinforcing ply (2) intended to form a reinforcement of the tire and which is formed of a non-ferromagnetic composite material having a polymer matrix, for example based on rubber or resin, in which are integrated non-ferromagnetic reinforcing elements, such as glass fibers.