| 摘要 |
<p>PURPOSE:To eliminate a management by a stock by altering a production amount of unvulcanized rubber to meet a required amount from a later step while obtaining predetermined size and shape. CONSTITUTION:When an extruding speed is altered from a present speed due to a request from a later step, a speed altering pattern is decided in response to physical properties of a unvulcanized rubber 12, a process central value of the rubber previously stored, a deviation amount at a present time point, and a speed altering width. The speed altering width is sorted to three types, and selected from four types of acceleration and deceleration patterns. A speed mode generator 34 controls motors 14, 18 according to a combination of the type of the speed altering width and the speed altering pattern.</p> |
