| 摘要 |
A tire tube manufacturing apparatus comprises a nozzle plate having a peripheral wall forming gap and a partition wall forming gap, two surface lubricant delivery ports opened in the nozzle plane at an area partitioned by two sides of the partition wall and partition portion forming gaps, and two delivering mechanisms for supplying a surface lubricant in the delivery ports, respectively. A tire tube manufacturing apparatus for a tire tube for extrusion molding a tire tube material in which the inside of a peripheral wall having an approximately circular cross-section is partitioned by a partition wall into an outer peripheral side sealant chamber and an inner peripheral side air chamber, comprises a nozzle plane having a peripheral wall forming gap (31) through which a peripheral wall portion of the tire tube material is extruded, and a partition wall forming gap (32) through which a partition wall portion of the tire tube material is extruded; a first surface lubricant delivery port (14a) opened in the nozzle plane at an area partitioned by one side of the partition wall forming gap and the peripheral wall forming gap; a second surface lubricant delivery port (14b) opened in the nozzle plane at an area partitioned by the other side of the partition wall forming gap and peripheral wall forming gap; first delivering mechanism (21) for supplying a surface lubricant into the first surface lubricant delivery port; and second delivering mechanism (22) for supplying the surface lubricant into the second surface lubricant delivery port. |
