Abstract: Provided is a tire molding apparatus capable of preventing a transfer device from continuing to swing after stop. The tire molding apparatus includes: a rail; and a transfer device configured to hold a tire member and move along the rail. The transfer device is configured to move along the rail and stop to receive or deliver the tire member. A positioning device is provided in the transfer device. The positioning device includes a concave portion and a convex portion. One of the concave portion and the convex portion is provided in the transfer device, and the other one of the concave portion and the convex portion is provided at a position facing the transfer device when the transfer device is stopped. The transfer device is stopped by fitting the concave portion to the convex portion.

Abstract: A tire molding apparatus includes: a moving body which moves and stops along a rail; and a position information acquiring device which acquires information of a stop position of the moving body, in which the position information acquiring device includes at least a reflector and a sensor as components, in which one component of the reflector and the sensor is provided facing the moving body in a stopped state, in which the moving body is provided with the other component of the reflector and the sensor, in which the one component is disposed at a position outside a movable range of the moving body, in which a reflection surface of the reflector is inclined with respect to an extension direction of the rail, and in which the information of the stop position of the moving body is acquired on the basis of the distance measured by the sensor.

Abstract: To provide a transfer device for transferring a tire constituent member from a first drum to a second drum in a tire forming apparatus. The transfer device includes a main body part having a space for receiving the first drum from one side in an axial direction in a state of being arranged on the same axis as that of the first drum in which the tire constituent member is formed, and a holding device provided so as to hold the tire constituent member from an outer peripheral side in a state where the first drum is arranged in the space. A detection device is installed on an end face on the one side in the axial direction of the main body part and the detection device detects the tire constituent member formed on the first drum during a receiving operation of the first drum into the space.

Abstract: Provided is a mouthpiece for an extruder provided at an extruder extruding a flowable molding material, including: a molding material flow passage; a molding material extrusion port formed at a front end of the molding material flow passage; and one or plural flow resistance members provided to advance into and withdraw from the molding material flow passage, the advancing and the withdrawing being performed by an operation at the outside of the mouthpiece for the extruder.

Abstract: A manufacturing apparatus of a rubber member includes an extruder that kneads and feeds a rubber material; a mouthpiece that discharges the rubber material supplied from the extruder; a support member that has a support surface opposing the mouthpiece; a rubber collection chamber that is formed between the mouthpiece and the support surface, that collects the rubber material discharged from the mouthpiece, and that has an opening in a front movement direction of the support surface with respect to the mouthpiece; and a shutter that opens and closes the opening. A plate-like rubber member is molded using the rubber material discharged from the mouthpiece onto the support surface by relatively moving the support surface and the mouthpiece.

Abstract: A method of estimating a life of a gear pump includes detecting the number of rotations of a gear and a discharge amount of rubber being extruded from the gear pump; calculating, based on the number of rotations and the discharge amount of the rubber which are detected, a discharge efficiency ? (=T1/T) that is a ratio of a measured value T1 of a discharge amount of the rubber that is extruded from the gear pump per one rotation of the gear to a theoretical value T; and estimating the life of the gear pump based on the calculated discharge efficiency ?.