| 摘要 |
<p>PURPOSE:To provide a resin temperature controlling device in an extruder wherein temperature of discharging resin can be kept in a set temperature by eliminating influence of temperature change of a cylinder. CONSTITUTION:Among a plurality of cylinder temperature control zones C1-C5 a set temperature at a control loop of a zone nearest to a cylinder outlet 11 whose temperature change influences the most a discharging resin temperature is controlled in a cascading manner such that a set value of the discharging resin temperature is detected and corrected based on a difference between the set value and an actual temperature, so that a discharging resin temperature control loop can be formed.</p> |
