A stitcher device presses a carcass ply to be pressure-bonded to a rubber member after that the carcass ply is wound around an outer periphery of a building drum movable along a drum guide path via a rubber member. The stitcher device includes an annular frame that is able to surround the outer periphery of the building drum by inserting the building drum thereinto, and a pressure-bonding device provided in the annular frame so as to be able to press the carcass ply from its outer periphery and pressure-bond the carcass ply to the rubber member. The annular frame is provided so as to be openable and closable by being divided into a plurality of parts in a peripheral direction.

A stitcher device presses a carcass ply to be pressure-bonded to a rubber member after that the carcass ply is wound around an outer periphery of a building drum movable along a drum guide path via a rubber member. The stitcher device includes an annular frame that is able to surround the outer periphery of the building drum by inserting the building drum thereinto, and a pressure-bonding device provided in the annular frame so as to be able to press the carcass ply from its outer periphery and pressure-bond the carcass ply to the rubber member. The annular frame is provided so as to be openable and closable by being divided into a plurality of parts in a peripheral direction.

An application system and method for applying a sealing agent to the inner surface of a pneumatic tire includes: rotating, by means of a support device, the pneumatic tire about an axis of rotation; applying a layer of sealing agent to the inner surface of the pneumatic tire by means of a dispensing head arranged within the pneumatic tire itself; pressing, by means of a pressure roller, the just applied layer of sealing agent against the inner surface of the pneumatic tire; pushing the pressure roller against the just applied layer of sealing agent by means of an actuator which generates a force having a desired value; determining, by means of a force sensor, a measured value of the force generated by the actuator; and cyclically varying the force generated by the actuator as a function of the measured value of the force.

The invention relates to a belt and tread drum for manufacturing a package of a belt layer and a tread layer into a cylindrical tire component, wherein the belt and tread drum comprises two support surfaces which are arranged spaced apart in a longitudinal direction of said belt and tread drum and which face away from the drum centre line and are radially movable with respect to the rigid support surface from a retracted position in which the tread support surface is arranged at or near the rigid support surface, to a raised position wherein the tread support surface is arranged in a radially outward position with respect to the rigid support surface, and vice versa, and wherein the tread support surfaces are movable in the substantial longitudinal direction of said drum.

The invention relates to a belt and tread drum for manufacturing a package of a belt layer and a tread layer into a cylindrical tire component, wherein the belt and tread drum comprises two support surfaces which are arranged spaced apart in a longitudinal direction of said belt and tread drum and which face away from the drum centre line and are radially movable with respect to the rigid support surface from a retracted position in which the tread support surface is arranged at or near the rigid support surface, to a raised position wherein the tread support surface is arranged in a radially outward position with respect to the rigid support surface, and vice versa, and wherein the tread support surfaces are movable in the substantial longitudinal direction of said drum.

The cutting system is configured to cut a continuous strip which extends lengthwise in a longitudinal direction and widthwise between a first edge and a second edge into strips. The cutting system includes a drive device which imparts to the continuous strip a feed speed, a first cutting roller and a contrarotating second cutting roller that cooperate to cut the continuous strip across its full width. The first cutting roller is provided with a first helical blade and is driven in rotation A variable synchronizer makes it possible to select and to modify the synchronization ratio between the rotational speed of the first cutting roller and the non-zero forward speed of the continuous strip in such a way as to be able to adjust the cutting angle according to which the cross-section of the continuous strip is oriented with respect to the longitudinal direction of the continuous strip.

Disclosed are to a transfer apparatus and a method for transferring plies onto a carcass package on a tire building drum. The transfer apparatus includes a transfer ring with first ring segments and a frame that extends in a circumferential direction about a central axis for holding the first ring segments in first angular positions distributed in the circumferential direction along the frame, wherein the first ring segments are movable relative to the frame in a radial direction from a first radial distance to a second radial distance from the central axis that is smaller than the first radial distance. The transfer apparatus further includes a first rolling device that is positionable in a second angular position interposed between the first angular positions, and a second ring segment that is positionable in the second angular position at the second radial distance from the central axis.

Disclosed are to a transfer apparatus and a method for transferring plies onto a carcass package on a tire building drum. The transfer apparatus includes a transfer ring with first ring segments and a frame that extends in a circumferential direction about a central axis for holding the first ring segments in first angular positions distributed in the circumferential direction along the frame, wherein the first ring segments are movable relative to the frame in a radial direction from a first radial distance to a second radial distance from the central axis that is smaller than the first radial distance. The transfer apparatus further includes a first rolling device that is positionable in a second angular position interposed between the first angular positions, and a second ring segment that is positionable in the second angular position at the second radial distance from the central axis.

An application device for applying a conductive insert on a tyre being processed. The application device includes a supply device for supplying a conductive liquid elastomeric compound, and an applicator having a movable surface for being operatively coupled with the supply device and receiving the conductive liquid elastomeric compound. The movable surface is for being placed in contact with a rotating tyre being processed and for applying the conductive liquid elastomeric compound on at least one coil of axially adjacent and/or partially superimposed coils. The applicator generates depressions in the tyre in a pattern defined by elements in relief and fills the depressions in the tyre with the conductive liquid elastomeric compound to covering the elements as the depressions in the tyre are generated.

The invention relates to a belt and tread drum (1, 401, 501, 601), an assembly of the belt and tread drum and a pressing device and to a method for manufacturing a belt and tread package (9), wherein the belt and tread drum comprises a first support member (2), wherein the first support member (2) comprises a tread support surface (20) which faces away from the drum axis (x) for supporting the tread layer (92) where said tread layer (92) is wider than the belt layer (91), wherein the first support member (2) is positionable in a raised position outside the circumferential surface (S) in the radial direction, wherein the belt and tread drum (1, 401, 501, 601) further comprises a first retaining element (4, 404) and a second retaining element for retaining the tread layer (92) at the first support member.