A tire vulcanizing system (100) is provided that optimizes the service life of guidance means and preserves the thermal stability of the vulcanization.

A method and the device are used to control valves. The valves are arranged in the region of lines for a fluid. At least one first valve is in the form of a control valve arranged in the region of a primary line. At least one second valve is in the form of a switching valve. At least one branch is arranged downstream of the control valve in the region of a direction of flow. At least two secondary lines extend downstream of the branch. Each secondary line has one of the switching valves. The valves are connected to a control unit which coordinates the function of the valves.

A method and the apparatus serve for air extraction in the area of a heating press. Extracted air is fed to at least one exhaust air treatment device. In the area of the device, the extracted air is modified in terms of at least one parameter. It is intended, in particular, to use a tire heating press as the heating press.

A tire vulcanizing system (100) is provided that optimizes the service life of guidance means and preserves the thermal stability of the vulcanization.

In an electric vulcanization system, a temperature of a heating medium in a fluid-tight enclosure is detected and adjusted during a current curing cycle.

In an electric vulcanization process, open loop and closed loop control modes can be used for controlling a heater output.

In a mold for vulcanizing and molding a tire, an annular tread mold that presses a tread section of a green tire mounted in the mold includes a plurality of segments divided in the circumferential direction of the green tire mounted in the mold, each segment includes a design surface mold and a holder member for holding the design surface mold and transferring heat from a heating device, and the design surface mold includes a plurality of piece members divided in the width direction of the green tire mounted in the mold. Thus, while avoiding generation of spews, a reduction in the temperature difference between a tire shoulder section and a tire width-directional center and its vicinity of a tread section at the time of vulcanization is realized, differences in physical property values from part to part are reduced, tire performance, and workability and strength of the mold are enhanced.

The present invention relates to a temperature sensor for measuring a temperature of a rubber, comprising: a protecting pipe; an element pipe extending coaxially with the protecting pipe, other than a tip portion of the element pipe being covered with the protecting pipe and the tip portion being exposed; and a temperature-measuring resistor element held in the element pipe to measure the rubber temperature. It is preferred that a ratio of a diameter (D2) of the protecting pipe to a diameter (D1) of the element pipe (D2/D1 ratio) is from 1.5 to 3.0. It is preferred that the protecting pipe and the element pipe comprise an air layer therebetween.

A tire vulcanization mold disclosed herein includes sectors 13 divided in a tire circumferential direction and molding a tread portion 1 of a tire, and a pair of upper and lower side plates 11 and 12 molding a sidewall portion 2 of the tire. Mold parting lines 16a and 17a formed by the sectors 13 and a pair of the upper and lower side plates 11 and 12 are located in the tread portion 1. The mold parting lines 16a and 17a are set within a range PR which accounts for up to 7.5% of a width BW of an outermost belt 5a of the tire on each of an outer side and an inner side than belt end positions BP of the outermost belt in a tire width direction.

A tire vulcanizer is provided which is capable of arranging a sector at a specified position during closing of a mold and suppressing a vulcanization molding defect. The tire vulcanizer includes: the sector that shapes a tread of a tire; paired upper and lower side plates that shape sidewalls of the tire; a segment to which the sector is fixed and which causes the sector to move in a tire radial direction; and mold parting surfaces defined by the sector and the side plates. Mold inner ends of the mold parting surfaces are arranged on the tread, and the mold parting surfaces extend outward in the tire radial direction from the mold inner ends. The sector includes paired upper and lower flange sections which respectively abut the paired upper and lower side plates in a state where the adjacent sectors in the tire circumferential direction tightly contact each other.