Compagnie Generale Des Etablissements Michelin

Michelin Recherche Et Technique S.a.

Societe Detechnologie Michelin

Nicolas Jaunet

Stephane Ravat

Jean-Marie Dettorre

Henri Hinc

Christophe Ougier

Arnaud Letocart

Stéphane Ravat

Pascal Martin

Michel Druet

Michel Deboeuf

Alain Faugeras

Antoine Filiol

Gérard Buvat

Herve Queraud

Hervé Queraud

Jacques Lauper

A method for transferring unwinders () using a transfer facility () comprising a control unit () for controlling the unwinders, and at least one autonomous mobile platform () is disclosed. The facility comprises measurement means for measuring the quantity of product wound on reels () supported by the unwinders and communication means. The method comprises the following successive operations: measuring the quantity of product wound on the reels and communicating the measured data to the control unit; on the basis of the measured data, determining the moment at which to transmit a removal or supply mission instruction to a mobile platform; transmitting to a mobile platform at the previously-determined moment, a mission instruction to remove or to supply a unwinder; and moving the mobile platform in such a way that it becomes positioned under a unwinder.

Method and facility for transferring reels

A method for supplying green tire manufacturing machines () with elastomeric products () by means of a supply facility () comprising a loading member () and at least one transfer member () comprising an unwinder () is disclosed. The supply facility comprises a preparation station (), said preparation station comprising a manipulator arm (), and at least one motor (), the preparation station and the unwinder being distinct from the green tire manufacturing machine. The method comprises the following successive operations: loading the reel onto the unwinder; positioning the end of the product wound on the réel; arranging the end of the product in such a way that it is laid on a dispenser of the unwinder; and transferring the reel from the preparation station to the green tire manufacturing machine.

Method and facility for supplying elastomeric products

The machine includes an extrusion head having flow ducts, the inlet orifices of which are connected to the outlets of at least two extruders for supplying extruded strips made of elastomeric compounds. The outlet orifices lead into a die which is adjacent to a roller and is designed to cooperate with the latter to shape the profiled element strip. The roller has a central axis surrounded by an external surface intended to receive the profiled element strip and a means for driving the roller in rotation about its central axis. The flow ducts are mutually parallel and are perpendicular to the circumferential direction of the roller, and the profiled element strip is joined to the receiving surface of the roller along an equivalent length of at least 700 mm.

Coextrusion machine for elastomeric compounds, and method for manufacturing a profiled element strip

A device for manufacturing a reinforcing ply N by assembling lengths of strip cut at an angle, comprising: a feed means () for delivering a strip (B), an assembly belt (), a transfer means () for conveying onto the assembly belt a given length of straight-grain strip in a direction (AA') comprising a retaining wall (), parallel to the planes of the assembly belt () and of the feed means, and a first face () of which is intended to come into contact with the surface of the strip, in which device the feed means (), the transfer means () and the assembly belt () are fitted with magnetic means. The retaining wall () is able to move up and down and back and forth, and the magnetic means are adjusted so that when the device is in operation: in the lowered position, the said magnetic means of the transfer means () exert on the metallic threads of the strip a magnetic field of a strength higher than the strength of the magnetic field exerted by the magnetic means () positioned on the feed means (), in the raised position, the said magnetic means of the transfer means () exert a magnetic field of a strength weaker than the strength of the magnetic field exerted by the magnetic means positioned on the assembly belt ().

Device for transferring and aligning strips intended to be assembled to form a ply

A technique for extruding a strip of rubber having filaments embedded therein. The rubber is channeled to an extrusion orifice for forming the strip. The outline of the extrusion orifice presents first and second orthogonal planes of symmetry that intersect at a straight line that is substantially parallel to a direction in which the strip is extruded through the extrusion orifice. The channeling of the rubber can be done with an upstream main channel having the first plane as a plane of symmetry, and extended by two downstream secondary channels that are substantially symmetrical to each other about the first plane. The main channel and the two downstream secondary channels also have the second plane as a plane of symmetry.

Device for sheathing a strip of filaments, the device having symmetrical feed channels

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Chateaugay, France

Nicolas Jaunet