The machine includes a tire-building zone for producing, on a drum, a carcass entity that includes a carcass ply with carcass reinforcers. The machine also includes a finishing zone for producing a crown entity that includes a tread, a shaping system for causing the carcass entity to expand radially in order to give it a toroidal shape. In an assembling zone, the crown entity is assembled on the carcass entity. A biasing system interacts, during the shaping, with the carcass reinforcers so as to modify the angular orientation of the carcass reinforcers with respect to the circumferential direction of the drum. An automatic control unit allows a biased-crown tire to be manufactured in this way.

One or more embodiments of the present invention provide a method for applying a dual compound coextruded continuous strip of a first compound and a second compound, the method comprising a first extruder for processing a first compound and a second extruder for processing a second compound, wherein the outlet from the first extruder is in fluid communication with a first channel of a housing, and the outlet from the second extruder is in fluid communication with a second channel of the housing, wherein a gear pump is positioned in each channel, wherein a nozzle is in fluid communication with an outlet of the first channel and an outlet of the second channel, and a coextruded continuous strip is produced. The ratio of the first compound to the second compound may be adjusted instantaneously.

Method for controlling the feed of semifinished products in a tyre building process, said method comprising: feeding a semifinished product (10) into a building station (30) adapted to build, through said semifinished product (10), a structural component of a tyre; performing, in an acquisition zone (AZ), a verification to verify the presence of at least one defect of said semifinished product (10); generating a notification signal (NS) as a function of said verification; activating, as a function of said notification signal (NS), a discard device (60), configured for discarding at least one portion of said semifinished product (10) comprising said at least one defect.

An applicator roll, a tire component servicer, and a method for applying a strip to a drum are provided. The applicator roll includes an outer ring that is rotatable about a rotation axis and that defines a retaining surface. The applicator roll is provided with suction openings for retaining the strip to the retaining surface. The applicator roll includes a follower that is rotatable inside the outer ring to follow a part of the strip on the retaining surface. The follower defines a chamber that extends in the circumferential direction over a retaining arc along the outer ring. The follower is rotatable about the rotation axis independently of the outer ring to a first retaining position on the outer ring in which the chamber is arranged in air communication with one or more suction openings within said retaining arc.

Provided are a method and device for forming a cylindrical member for accurately forming belt-like members into a cylindrical shape without meandering. A pre-winding position sensor detects a position of a member reference line extending in a longitudinal direction of a belt-like member along the entire length of the belt-like member in the longitudinal direction thereof before the belt-like member is placed on a transport conveyor belt, transported to a forming drum, and wound around the forming drum. The belt-like member is wound around the forming drum and formed in a cylindrical shape while the forming drum is relatively moved in the drum width direction with respect to the transport conveyor belt by a controller and the member reference line, based on the detected data and a position data of the drum reference line orthogonal to the drum axial center of the forming drum.

The device comprises at least one module for stitching the tread and a means for moving the module vertically and horizontally. The stitching module comprises a frame which is provided with a fixed stitching assembly, equipped with spikes, and at least one mobile stitching assembly. The at least one mobile stitching assembly comprises at least one stitching plate provided at the base of same with at least one planar horizontal contact surface, from which at least two spikes protrude. The plate is arranged in a vertical guide space provided in the frame such that the spikes protrude downwards and such that it is free to move vertically in this space over a limited travel path. The device also includes a vertical movement device for moving the plate from the top downwards in this guide space and a device for locking the altitude position of the plate in this space.

A method for manufacturing a pneumatic tire includes: a step of winding carcass plies around a molding drum to mold a carcass, wherein the carcass has a joint portion in which ends of each of the carcass plies in a tire circumferential direction are overlapped with each other, the method further includes a step of pasting a rubber tape that covers at least a part of the joint portion after winding the carcass ply, and the rubber tape has: a central portion pasted to an outside of the joint portion and extending with a constant thickness along the tire circumferential direction; and tapered portions individually extending from both ends of the central portion in the tire circumferential direction along the tire circumferential direction while reducing a thickness of each of the tapered portions, and having tip ends with an angle of 45 degrees or less.

A method for supplying green tire manufacturing machines (14) with elastomeric products (12) by means of a supply facility (10) comprising a loading member (30) and at least one transfer member (34) comprising an unwinder (36) is disclosed. The supply facility comprises a preparation station (32), said preparation station comprising a manipulator arm (70), and at least one motor (53), 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 for controlling the feed of semifinished products in a tyre building process, said method comprising: feeding a semifinished product (10) into a building station (30) adapted to build, through said semi-finished product (10), a structural component of a tyre; performing, in an acquisition zone (AZ), a verification to verify the presence of at least one defect of said semifinished product (10); generating a notification signal (NS) as a function of said verification; activating, as a function of said notification signal (NS), a discard device (60), configured for discarding at least one portion of said semifinished product (10) comprising said at least one defect.

A device and a method for feeding a sheet material are provided. A conveying machine is disposed above a holding machine. A sensor detects a lateral position of a rubber sheet fed from the holding machine. At a position between a grip position below the conveying machine and a release position at an upstream side in a conveying direction above the conveying machine, a leading edge of the rubber sheet is gripped by a gripping machine. The gripping machine is revolved and moved to the release position using, as a revolution center, a position in a vertical direction midway between the grip position and the release position. The leading edge being released is pressed against a placement surface of the conveying machine by a pressing portion. The rubber sheet is placed on the placement surface and conveyed to a downstream side in the conveying direction by the conveying machine.