| 摘要 |
PURPOSE:To improve the accuracy of vulcanization control by continuously detecting the boundary temperature between a mold and a type and the boundary temperature of the inside of type or bladder being in directly contact with the heating medium inside the type, from the vulcanization beginning to its finishing at the time of a type vulcanization. CONSTITUTION:For the boundary temperature of the shoulder 5a of a type 5, the boundary temperature between a mold and a tyre is continuously detected from vulcanization beginning to its finishing by fitting the mold temperature sensor 19 detecting mold surface temperature to the mold surface 6b, and on the other hand, the boundary temperature between a bladder and the heating medium on an inner pressure side is also detected similarly by the equivalent temperature measuring sensor 21 fitted in the adjacent of a center post. These boundary temperatures are respectively inputted in a control unit 3 as a signal C1 and C2. The distribution of the vulcanization degree is calculated from the data of the temperature distribution in each position, and the minimum vulcanization value in each position is calculated. This minimum vulcanization value changes with time elaspe and shows the true minimum value. The position of the most delayed vulcanization point is moved by the hysteresis of the boundary temperature, and the vulcanization condition is judged only at its specified point, thereby making no mistake. |
