METHOD FOR CONTROLLING TEMPERATURE OF CALENDER AND APPARATUS THEREFOR

摘要

PROBLEM TO BE SOLVED: To finely adjust the temp. of a resin with good resposiveness. SOLUTION: The temps. of the resin 36 immediately after issued from banks 33-35 are detected by the non-contact type temp. detectors 38-40 attached on the discharge sides of the banks 33-35 and the obtained temp. detection signals 41-43 are sent to an operational control unit 51 to be compared with the set resin temps. 45-47 on the discharge sides of the banks 33-35 inputted to a setting device 44. Then, speed control signals 48-50 are sent to drive motors 29, 31, 32 during operation to provide a temporary difference between the speeds of calender rolls 25, 27, 28.