The present invention refers to a method for controlling the laying down of components of tyres on forming drums, said method comprising: sending a first electromagnetic radiation (Ri1) on a first laying down structure (3a) comprising a forming drum (2) and a first component (CI) of a tyre laid down on said forming drum (2); detecting at least a first corresponding reflected radiation (Rr1), determining as a function of said first reflected radiation (Rr1) a first parameter (PI) representative of a first main length (LI) of said first component (CI); comparing said first parameter (PI) with one or more pre-stored reference values; generating a first correction signal (SI) as a function of said comparison; sending said first correction signal (SI) to at least one preparation station adapted to prepare said first component (CI) to regulate the preparation of further components. An apparatus for controlling the laying down of components of tyres on forming drums is also described.

A method for controlling the laying down of components of tyres on forming drums, includes: sending a first electromagnetic radiation on a first laying down structure including a forming drum and a first component of a tyre laid down on the forming drum; detecting at least a first corresponding reflected radiation, determining as a function of the first reflected radiation a first parameter representative of a first main length of the first component; comparing the first parameter with one or more pre-stored reference values; generating a first correction signal as a function of the comparison; and sending the first correction signal to at least one preparation station adapted to prepare the first component to regulate the preparation of further components. An apparatus for controlling the laying down of components of tyres on forming drums is also described.

A tire manufacturing method and system is provided for controlling a product profile having one or more elastomeric layers that are produced by continuously extruding an elongated element (200) of an elastomeric material and depositing the elongated element (200) upon a forming surface (100a) of a circumferentially rotating drum (100).

A continuous elongated element of elastomeric material is produced through an extruder at a linear delivery speed and directly fed onto a moving surface of a conveyor without interposition of other devices. The continuous elongated element is advanced on the moving surface along a predetermined direction and at a linear advancing speed different from the linear delivery speed until a proximal end of the conveyor. Subsequently, the continuous elongated element is applied onto a forming support which rotates relative to the proximal end of the conveyor at a peripheral speed different from the linear delivery speed, so as to deform the continuous elongated element and apply it in the form of wound coils onto the forming support in order to form a component of elastomeric material of a tyre.

A continuous elongated element of elastomeric material is produced through an extruder at a linear delivery speed and directly fed onto a moving surface of a conveyor without interposition of other devices. The continuous elongated element is advanced on the moving surface along a predetermined direction and at a linear advancing speed different from the linear delivery speed until a proximal end of the conveyor. Subsequently, the continuous elongated element is applied onto a forming support which rotates relative to the proximal end of the conveyor at a peripheral speed different from the linear delivery speed, so as to deform the continuous elongated element and apply it in the form of wound coils onto the forming support in order to form a component of elastomeric material of a tyre.

A continuous elongated element of elastomeric material is produced through an extruder at a linear delivery speed and directly fed onto a moving surface of a conveyor without interposition of other devices. The continuous elongated element is advanced on the moving surface along a predetermined direction and at a linear advancing speed different from the linear delivery speed until a proximal end of the conveyor. Subsequently, the continuous elongated element is applied onto a forming support which rotates relative to the proximal end of the conveyor at a peripheral speed different from the linear delivery speed, so as to deform the continuous elongated element and apply it in the form of wound coils onto the forming support in order to form a component of elastomeric material of a tyre.

A tire manufacturing method and system is provided for controlling a product profile having one or more elastomeric layers that are produced by continuously extruding an elongated element (200) of an elastomeric material and depositing the elongated element (200) upon a forming surface (100a) of a circumferentially rotating drum (100).

A distance measure between a beginning and an end of a material strip wound onto a body in a tangential direction can be determined by creating a height profile of a surface of the material strip, which covers the beginning and the end of the wound material strip in the tangential direction. If a position value of the beginning of the material strip is determined in the created height profile, the distance measure can be determined using this position value and the height profile covering the end of the material strip.

The present invention refers to a method for controlling the laying down of components of tyres on forming drums, said method comprising: sending a first electromagnetic radiation (Ri1) on a first laying down structure (3a) comprising a forming drum (2) and a first component (CI) of a tyre laid down on said forming drum (2); detecting at least a first corresponding reflected radiation (Rr1), determining as a function of said first reflected radiation (Rr1) a first parameter (PI) representative of a first main length (LI) of said first component (CI); comparing said first parameter (PI) with one or more pre-stored reference values; generating a first correction signal (SI) as a function of said comparison; sending said first correction signal (SI) to at least one preparation station adapted to prepare said first component (CI) to regulate the preparation of further components. An apparatus for controlling the laying down of components of tyres on forming drums is also described.

A tire layer application assembly and a method for applying a tire layer around a substantially circular circumferential surface of an object. The assembly is provided with a drive which, during application, is coupled to the object for driving the object in a driven rotation about a concentric axis of rotation with respect to the circumferential surface, wherein the assembly includes a tracking device which, during application, is arranged to be fixed to a part of the tire layer that is applied to the circumferential surface, wherein the tracking device is rotatable in a tracking rotation about the axis of rotation of the object, independent of the driven rotation of the object about the same axis of rotation.