Abstract: By increasing an area of the fluid discharge ports to increase a discharge capacity, drain water can quickly be discharged. Furthermore, the number of fluid supply ports is increased and the ports are equally spaced to thereby quickly and uniformly fill a heated steam or the like into a bladder. As a result, it is possible to reduce a cycle time of a tire vulcanizing step to thereby increase productivity in a fluid supply/discharge head of the bladder in a tire vulcanizing machine. In the tire vulcanizing machine, the fluid supply ports and the fluid discharge ports which are open to face an inside of the bladder are formed in the head block, the fluid discharge ports are disposed on the lower side of the head block, the fluid supply ports are disposed on the upper side of the head block, and the fluid discharge ports and the fluid supply ports are not disposed on the same plane.

Abstract: Disclosed is a gas cycle apparatus for a tire vulcanizer, configured to increase the circulating flow rate of a heating gas by preventing a gas feeder of the gas cycle apparatus from being subjected to an excessive load caused by a drain, and thereby capable of shortening the tire vulcanizing time by improving the temperature difference eliminating capacity in a bladder, to thereby allow the enhancement of the production capacity of tires. A gas circulating flow path 2 constituted by allowing a forward flow path 2a and a return flow path 2b to communicate with each other, is connected to a bladder 1; a gas supply flow path 3 is connected to the forward flow path; an air-water separation section 5 is provided on the way through the return flow path; the return flow path is connected to an upper space 5a of the air-water separation section; and a gas discharge flow path 4 is connected to a lower space 5b of the air-water separation section.

Abstract: The invention provides a tire vulcanizing apparatus which can reduce time loss and efficiently vulcanize and mold employing a tire loading apparatus for positively loading the green tire, and forming a moving unit in which the tire loading apparatus and the lower mold are integrally connected.

Abstract: The invention relates to a piping structure in a tire vulcanizing machine which has a simple structure, has an improved operability of a valve, can easily execute a maintenance work such as a valve replacement or the like, and can form a compact valve unit. A plurality of panel valves 5 are attached to a block main body side by side in a vertical direction in a state of flush connecting a block side connection surface 34 formed approximately perpendicularly in a block main body 30 which is long in a vertical direction, and a valve side connection surface 56 formed approximately perpendicularly in one side of an outer surface of a valve main body 50, and main flow paths 31, 32 formed in an inner portion of the block main body and flow paths 51, 52 formed in an inner portion of each of the panel valves are connected.

Abstract: The invention provides a tire vulcanizing technique which can sufficiently secure a time for supplying a green tire by conveying the green tire to a tire supplying position during a vulcanizing and molding step which has the longest time in the tire vulcanizing step. The invention provides a tire vulcanizing method provided with a tire conveying apparatus which reciprocates between a conveyance waiting position (X1) and a tire supplying position (X2), a tire elevating apparatus which elevates between an ascent holding position and a descent set position at the tire supplying position, a lower mold which reciprocates between the tire supplying position and a tire vulcanizing position, and an upper mold which elevates between a descent vulcanizing position and an ascent waiting position at the tire vulcanizing position.

Abstract: By increasing an area of the fluid discharge ports to increase a discharge capacity, drain water can quickly be discharged. Furthermore, the number of fluid supply ports is increased and the ports are equally spaced to thereby quickly and uniformly fill a heated steam or the like into a bladder. As a result, it is possible to reduce a cycle time of a tire vulcanizing step to thereby increase productivity in a fluid supply/discharge head of the bladder in a tire vulcanizing machine. In the tire vulcanizing machine, the fluid supply ports 71 and the fluid discharge ports 61 which are open to face an inside of the bladder are formed in the head block 50, the fluid discharge ports are disposed on the lower side of the head block, the fluid supply ports are disposed on the upper side of the head block, and the fluid discharge ports and the fluid supply ports are not disposed on the same plane.

Abstract: The present invention provides a locking and unlocking mechanism of a post-curing in which a male mold is simplified in structure and reduced in weight, and the entire device including an upper flange hoisting and lowering device is reduced in size and weight. The locking and unlocking mechanism comprises a pair of flanges 1 and 2 for closing openings formed in left and right side surfaces of the tire, and a lock mechanism A provided between the flanges for supporting an expansion load of the tire. The lock mechanism A comprises a male rod 4 projecting from a surface of one of the flanges, and a female mold 3 of the other flange with which a tip end of the male rod 4 is engaged. An adjust mechanism for setting a length of the male rod 4 is connected to a base portion of the male rod 4. The male rod 4 is provided with a slide portion extended as the tire is expanded. The adjust mechanism sets a distance between the flanges 1 and 2 in accordance with a width of the tire.

Abstract: A direct-acting electric operated valve has a stem which reciprocates by an electric motor without using air pressure. In this direct-acting electric operated valve, as the stem 2 vertically reciprocates, a first passage 11 and a second passage 12 are switched over. A cam mechanism 4 is formed for converting rotary reciprocating motion of an eccentric cam 42 which rotary reciprocates by an electric motor 40 into vertical reciprocating motion. The eccentric cam is retained at an upper retaining position X which is slightly exceeding a top dead center X1 and at a lower retaining position Y which is slightly exceeding a bottom dead center Y1. In a state in which an integral coil spring 35 which is previously held between an upper spring seat 32 and a lower spring seat 34 in its compressed state is mounted to a spring shaft 30 which extends from a cam mechanism, the coil spring 35 is accommodated in a spring case 36 connected to the stem.

Abstract: The invention provide a tire vulcanizing apparatus which can reduce a time loss and can efficiently vulcanize and mold employing a tire loading apparatus for positively loading the green tire, and forming a moving unit in which the tire loading apparatus and the lower mold are integrally connected.

Abstract: The invention relates to a piping structure in a tire vulcanizing machine which has a simple structure, has an improved operability of a valve, can easily execute a maintenance work such as a valve replacement or the like, and can form a compact valve unit. A plurality of panel valves 5 are attached to a block main body side by side in a vertical direction in a state of flush connecting a block side connection surface 34 formed approximately perpendicularly in a block main body 30 which is long in a vertical direction, and a valve side connection surface 56 formed approximately perpendicularly in one side of an outer surface of a valve main body 50, and main flow paths 31, 32 formed in an inner portion of the block main body and flow paths 51, 52 formed in an inner portion of each of the panel valves are connected.

Abstract: A direct-acting electric operated valve has a stem which reciprocates by an electric motor without using air pressure. In this direct-acting electric operated valve, as the stem 2 vertically reciprocates, a first passage 11 and a second passage 12 are switched over. A cam mechanism 4 is formed for converting rotary reciprocating motion of an eccentric cam 42 which rotary reciprocates by an electric motor 40 into vertical reciprocating motion. The eccentric cam is retained at an upper retaining position X which is slightly exceeding a top dead center X1 and at a lower retaining position Y which is slightly exceeding a bottom dead center Y1. In a state in which an integral coil spring 35 which is previously held between an upper spring seat 32 and a lower spring seat 34 in its compressed state is mounted to a spring shaft 30 which extends from a cam mechanism, the coil spring 35 is accommodated in a spring case 36 connected to the stem.

Abstract: When the loading device or the unloading device is transferred, a procedure for separating the attaching/detaching-side rim mold to separate both the rim molds is eliminated, and the loading procedure and unloading procedure are simplified correspondingly, and the operation efficiency is enhanced. The present invention provides a tire grasping device of a PCI device in which a stroke amount when separating or coupling the attaching/detaching-side rim mold from and to the body-side rim mold is reduced to such a degree that the grasped tire does not interfere with the body-side rim mold and thus, the device is reduced in size. A post-vulcanization inflating device comprises a body-side rim mold 2 and an attaching/detaching-side rim mold 3.

Abstract: A tire vulcanizing machine has a tire receiving position, tire supplying position, tire vulcanizing position, and tire removing position. A receiving table receives a green tire and provides the tire to a tire supplying device. The tire supplying device positions the tire on a lower die and an upper die closes. The dies vulcanize and mold the green tire therebetween. A removing device transfers the vulcanized tire to a cooling device and ejects the cooled tire to a transfer conveyor. The receiving table, lower die and removing device are joined to each other and make a reciprocating movement at the same time at their set positions along with a transfer unit.

Abstract: The present invention provides a locking and unlocking mechanism of a post-curing in which a male mold is simplified in structure and reduced in weight, and the entire device including an upper flange hoisting and lowering device is reduced in size and weight.

Abstract: When the loading device or the unloading device is transferred, a procedure for separating the attaching/detaching-side rim mold to separate both the rim molds is eliminated, and the loading procedure and unloading procedure are simplified correspondingly, and the operation efficiency is enhanced. The present invention provides a tire grasping device of a PCI device in which a stroke amount when separating or coupling the attaching/detaching-side rim mold from and to the body-side rim mold is reduced to such a degree that the grasped tire does not interfere with the body-side rim mold and thus, the device is reduced in size.

Abstract: A tire vulcanizing machine to enhance operation significantly by performing separate processes at the same time on the multiple green tires or vulcanized tires.

Abstract: A tire vulcanizing machine has a tire receiving position, tire supplying position, tire vulcanizing position, and tire removing position. A receiving table receives a green tire and provides the tire to a tire supplying device. The tire supplying device positions the tire on a lower die and an upper die closes. The dies vulcanize and mold the green tire therebetween. A removing device transfers the vulcanized tire to a cooling device and ejects the cooled tire to a transfer conveyor. The receiving table, lower die and removing device are joined to each other and make a reciprocating movement at the same time at their set positions along with a transfer unit.