An extruder is disclosed including: a barrel; and a screw provided with a helical groove; wherein the screw comprises a dewatering portion comprising a first portion, and a second portion at a location downstream from the first portion; wherein, at the dewatering portion, clearance between the groove and the barrel decreases as one proceeds downstream; and wherein clearance reduction ratio at the first portion is greater than clearance reduction ratio at the second portion.

The present invention includes a shaft that protrudes further toward a lower spindle side than an upper rim and includes a plurality of engagement grooves arranged in an up-down direction at an outer periphery of a lower end accommodated in a hollow portion of the lower spindle; a shaft support part that rotatably supports an upper end of the shaft; an engagement part that is accommodated within the hollow portion and is engaged with any one engagement groove of the plurality of engagement grooves; a first elevating part that is configured to integrally move the upper spindle, the shaft, and the shaft support part in the up-down direction; and a second elevating part that adjusts the length of the shaft protruding below the upper rim by changing the distance between the shaft support part and the upper spindle.

Disclosed herein are automated systems and methods utilizing a plurality of specialized RFID tags incorporated within various tire manufacturing components (e.g., mold segments, mold container, bladder plates, tire presses, and extrusion dies) that are able to readily track tire manufacture and identify defect source(s) while concurrently being configured to the harsh processes and temperatures of tire manufacture.

The subject matter of the present invention relates to an integrally formed tire sensor container (100) for holding a tire sensor on the inner liner surface (70) within the cavity of a pneumatic tire (10). The container (100) has a base surface (110) surrounded by a peripheral wall (120) that extends from the base (110). An aperture (130) is formed by the peripheral wall (120) and has a maximum aperture diameter (132) smaller than a maximum wall diameter (126).

A method for transferring unwinders (36) using a transfer facility (38) comprising a control unit (39) for controlling the unwinders, and at least one autonomous mobile platform (40) is disclosed. The facility comprises measurement means for measuring the quantity of product wound on reels (22) supported by the unwinders and communication means. The method comprises the following successive operations: measuring the quantity of product wound on the reels and communicating the measured data to the control unit; on the basis of the measured data, determining the moment at which to transmit a removal or supply mission instruction to a mobile platform; transmitting to a mobile platform at the previously-determined moment, a mission instruction to remove or to supply a unwinder; and moving the mobile platform in such a way that it becomes positioned under a unwinder.

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.

A plant for building a tyre for a vehicle wheel includes a device for building carcass sleeves on building drums, a bead-forming machine, a first storage region, a second storage region, a first transport device movable between a picking-up position of pairs of annular anchoring structures in the first storage region and a release position of the pairs of annular anchoring structures in the bead-forming machine, and a second transport device movable between a first engagement position in the first storage region and a second engagement position in the second storage region, to move a plurality of annular anchoring structures between the first storage region and the second storage region.

A pneumatic tire according to the present technology is a pneumatic tire provided with a tread section, sidewall sections, and bead sections, a belt-shaped sound-absorbing member being bonded via an adhesive layer to an inner surface of the tire in a region corresponding to the tread section along the circumferential direction of the tire, wherein a bonding surface of the sound-absorbing member is provided with a bonded region that is bonded to the inner surface of the tire and an unbonded region that is not bonded to the inner surface of the tire, and the bonded region is divided by the unbonded region into a plurality of divisions along the circumferential direction of the tire.

Apparatus (1) for checking tyres, comprising: a support frame (2); a flange (3); and an acquisition system (4) of three-dimensional images of a surface of a tyre, the acquisition system being mounted on the support frame and comprising: a matrix camera (5), a linear laser source (7), and a reflecting surface (12) which intersects the propagation axis (9) of the linear laser beam and the optical axis (6) of the matrix camera (5), wherein a first angle (50) formed between a first section (14) and a second section (31) of the optical axis (6) mutually symmetrical with respect to a normal to the reflecting surface in the respective point of incidence to the reflecting surface, is obtuse, and wherein a second angle (51) formed between a first section (16) and a second section (32) of the propagation axis (9) mutually symmetrical with respect to a normal to the reflecting surface in the respective point of incidence to the reflecting surface, is obtuse.

An extrusion system (10) is provided that has first and second extruders (12,14) with first and second extrusion barrels (50,52). First and second extruded components (24,26) are transferred through the barrels (50,52) to a die (22) to coextrude tire tread (20) from the first and second extruded components (24,26). A horizontal plane (70) is located above ground in a vertical direction (40) and extends through both the first extrusion barrel (50) and the second extrusion barrel (52).