A transporter and a method are provided for retrieving at least one reinforcing ply and conforming the at least one reinforcing ply to a forming surface of a rotatable forming drum having one or more tire components disposed thereon.

A transporter and a method are provided for retrieving at least one reinforcing ply and conforming the at least one reinforcing ply to a forming surface of a rotatable forming drum having one or more tire components disposed thereon.

The invention relates to a method for picking up and placing a tire components, wherein the method includes the steps of picking up a supplied first tire component with a transfer drum, rotating the transfer drum in a first direction for winding a predetermined length of the continuous length of the first tire component, rotating the transfer drum in the opposite second direction, while at the same time moving the transfer drum downstream into a cutting position, wherein a part of the predetermined length of the first tire component is unwound from the transfer drum, cutting the unwound part, thereby obtaining a cut-to-length first tire component, and rotating the transfer drum again in the first direction for winding up the unwound part of the cut-to-length first tire component up to the trailing end.

The invention relates to a method for picking up and placing a tire components, wherein the method includes the steps of picking up a supplied first tire component with a transfer drum, rotating the transfer drum in a first direction for winding a predetermined length of the continuous length of the first tire component, rotating the transfer drum in the opposite second direction, while at the same time moving the transfer drum downstream into a cutting position, wherein a part of the predetermined length of the first tire component is unwound from the transfer drum, cutting the unwound part, thereby obtaining a cut-to-length first tire component, and rotating the transfer drum again in the first direction for winding up the unwound part of the cut-to-length first tire component up to the trailing end.

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.

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 building method comprising: feeding an elastomer strip in a feed direction towards a building drum by means of a first and a second feed conveyor arranged in succession; cyclically determining the transverse position of both sides of the elastomer strip in a centring direction perpendicular to the feed direction; calculating an average head out of center on a head portion of the elastomer strip; and moving the second feed conveyor transversely in the centring direction by an amount equal to the average head out of center, before winding the elastomer strip around the building drum.

A tire building method comprising: feeding an elastomer strip in a feed direction towards a building drum by means of a first and a second feed conveyor arranged in succession; cyclically determining the transverse position of both sides of the elastomer strip in a centring direction perpendicular to the feed direction; calculating an average head out of center on a head portion of the elastomer strip; and moving the second feed conveyor transversely in the centring direction by an amount equal to the average head out of center, before winding the elastomer strip around the building drum.

A tyre building plant includes a forming drum and a supply device for supplying an elongated element toward the forming drum. The supply device includes at least one conveyor belt which extends in a supply direction between a loading region, in which the elongated element is loaded on the conveyor belt and an unloading region, a control unit for controlling the loading of the elongated element on the conveyor belt, at least a first detection element which is fixed with a first portion of the conveyor belt, a sensor which is fixed and independent with respect to the conveyor belt and which detects the position of the first portion with respect to the supply device. The loading of the elongated element on the conveyor belt is performed when the first portion is at a predefined reference distance from the loading region.

A tyre building plant includes a forming drum and a supply device for supplying an elongated element toward the forming drum. The supply device includes at least one conveyor belt which extends in a supply direction between a loading region, in which the elongated element is loaded on the conveyor belt and an unloading region, a control unit for controlling the loading of the elongated element on the conveyor belt, at least a first detection element which is fixed with a first portion of the conveyor belt, a sensor which is fixed and independent with respect to the conveyor belt and which detects the position of the first portion with respect to the supply device. The loading of the elongated element on the conveyor belt is performed when the first portion is at a predefined reference distance from the loading region.