Manufacture of a strip by extrusion of a tube then flattening the tube
AssigneeMichelin Recherche et Technique S.A.
InventorsRemy Martin, Olivier Dailliez
Life of this patent
Estimating the term…
Abstract
A process and apparatus for laying a strip for the manufacture of a tire by extruding uncured rubber through a die to form a rubber tube on a rotary support and flattening the tubular form to form a band which is adhered to a receiving surface on the rotary support.
Claims18
A process for laying a component comprising uncured rubber during the manufacture of a tire, the laying being effected by winding a band on to a rotary support having a receiving surface, comprising:
- extruding uncured rubber through a die imparting a tubular section to the extruded uncured rubber to form a rubber tube, the wall of which defines an internal cavity, and
- flattening the tubular form to form a band which is adhered to said receiving surface.
A process for manufacturing a band of uncured rubber, comprising the following steps:
- extruding uncured rubber through a die imparting a tubular section to the extruded uncured rubber to form a tube of uncured rubber, the wall of which defines an internal cavity,
- concomitantly with the extrusion, introducing a material into said tube, in a predefined amount, and
- flattening the tubular form and thus obtaining a band.
A process for laying a component comprising uncured rubber during the manufacture of a tire, the laying being effected by winding a band of uncured rubber on to a rotary support having a receiving surface, the band of uncured rubber being manufactured by a process comprising:
- extruding uncured rubber through a die imparting a tubular section to the extruded uncured rubber to form a tube of uncured rubber, the wall of which defines an internal cavity,
- concomitantly with the extrusion, introducing a material into said tube in a predefined amount, and
- flattening the tubular form and thus forming a band.
A machine for laying a component comprising uncured rubber for the manufacture of a tire, said machine winding a band on a rotary support, said machine comprising:
- an extruder equipped with a die imparting a tubular form to the section of extruded uncured rubber,
- a rotary support of revolution, serving as a reference for the manufacture of the tire,
- a manipulating robot which imparts all the desired relative positions between said support of revolution and said die, and
- at least one roller downstream of said die cooperating with the rotary support to flatten the tubular form on the rotary support.
Dependencies are inferred from the claim text.