Techniques presented herein relate to vulcanizing equipment that includes a vulcanizing mold in which a vulcanizing cavity is formed, a vulcanizing bladder suitable for being placed in the vulcanizing cavity, and a supporting assembly that includes a center rod and a clamping device arranged on the center rod. The clamping device is suitable for installing the curing bladder in the cavity in a sealed manner. The vulcanizing equipment further includes a heating assembly and a gas circulation assembly that are arranged in the curing bladder in a stacked manner in the axial direction of the center rod. The gas circulation assembly is suitable for circulating a heated heating medium in the curing bladder. A driving assembly of the vulcanizing equipment includes a rotating shaft sleeve that is arranged on the outer side of the center rod in a clearance-fit manner and is connected to the gas circulation assembly.

A method of molding a tire that has a container (12) that includes the steps of placing an uncured tire into a mold, and providing a bladder (16) that has a flexible portion (18) and an insert (20) that has a cavity configured for molding the container into the tire. The bladder has a fluid therein and is inflated within the mold, and material of the uncured tire flows into the cavity of the insert (20). Sufficient heat and pressure is applied to the uncured tire to at least partially cure the tire when the uncured tire is in the mold. The material in the insert (20) forms the container (12) such that the container is integrally formed with other portions of the tire. The mold is opened to retrieve the tire.

Evaluation device and method for monitoring a vulcanization process of a vehicle tire in a tire heating press, wherein at least one sensor value and/or at least one control variable of the tire heating press is acquired, where the sensor value and/or the control variable is fed to an evaluation device that includes an ML model, and the evaluation device and/or the ML model outputs a warning notification when an evaluation of the at least one sensor value and/or the at least one control variable by the evaluation device reveals that there is a defect or an anomaly with the tire heating press or at least part of the tire heating press, or that there will be a defect or an anomaly with the tire heating press or at least part of the tire heating press in the foreseeable future.

A tyre includes a toroidal ring-shaped carcass structure with at least one carcass ply associated with at least one annular fixing structure, as well as a tread band positioned radially externally with respect to the carcass structure. The annular fixing structure includes a radially inner and axially inner surface and a radially inner and axially outer surface, the surfaces being substantially opposed to each other. The radially inner and axially inner surface and radially inner and axially outer surface are shaped by successive application of a first squeezing pressure produced by a first surface and a second surface of a curing mould that are brought towards each other, as well as a second squeezing pressure produced by bringing the first and second surfaces closer together. The radially inner and axially inner surface and/or radially inner axially outer surface have a shape that includes air evacuation channels.

An apparatus for vulcanizing a tire comprises: a side mold segment provided with a face for shaping the outer surface of a tire sidewall portion, and an opposite face not serving for shaping; and a heater part for vulcanizing the raw tire. The heater part is disposed adjacently to the side mold segment to heat the raw tire abutting on the side-shaping-face from the side of the face not serving for shaping. The side mold segment is provided with a flow path through which a first fluid whose temperature is lower than the vulcanization temperature of the raw tire can flow to prevent over-vulcanization of the sidewall portion.

A tire vulcanizing apparatus of the present invention includes a liftable center post which supports a green tire, and a heating portion which is fixed to the center post, is disposed inside the green tire, and transmits heat from the inside of the green tire to the green tire by radiation heat.

The invention proposes a configuration applied to envelope for tire retreading in a cold retreading process. In the state of the art, envelopes consisting of two parts are known. However, the known methods of sealing among the pieces are not satisfactory either due to sealing problems, or by reducing the useful life of the envelope. In order to overcome these limitations, the invention proposes an envelope (20) comprising three parts (22, 24, 26), in which a flap (224) of the first part (22) presents a free end with a differentiated cross-section (224b), in which a flap (244) of the second part (24) has a free end with a differentiated cross-section (244b) and in which the third part (26) presents a shape of an elastic ring with enough width to cover the differentiated cross-section (224b) of the flap (224) of the first part (22) and the differentiated cross-section (244b) of the flap (244) of the second part (24).

A system and method for molding complex three-dimensional articles is disclosed. The system includes a mold for receiving an article made of at least one moldable material and, in one example, the article comprises at least one flat region and at least one radial region. The mold comprises an inner bladder that conforms to an inner surface of the article when pressurized and an outer mold that contacts an outer surface of the article. The system also includes an inner electrode spaced from an outer electrode, and a generator operable to generate an alternating electric field between the electrodes and across the article in the mold to obtain substantially even heating of the moldable material in the flat region and the radial region at the end of the heating cycle.

A tire-holding device includes: a shaft body having a portion thereof inserted into a bladder which is fixed to the shaft body, the bladder expanding in a tire to hold the tire; and a support body which comes into contact with the shaft body to support the shaft body, the shaft body includes an inner hole placed inside the bladder, and an outer hole placed outside the bladder and is brought into communication with the inner hole, and the support body includes a support hole, and when the support body supports the shaft body, the outer hole and the support hole come into communication with each other irrespective of a position of the shaft body in its circumferential direction.

An apparatus for vulcanizing a tire comprises: a side mold segment provided with a face for shaping the outer surface of a tire sidewall portion, and an opposite face not serving for shaping; and a heater part for vulcanizing the raw tire. The heater part is disposed adjacently to the side mold segment to heat the raw tire abutting on the side-shaping-face from the side of the face not serving for shaping. The side mold segment is provided with a flow path through which a first fluid whose temperature is lower than the vulcanization temperature of the raw tire can flow to prevent over-vulcanization of the sidewall portion.