HEATING TEMPERATURE ADJUSTING DEVICE FOR RUNNING WIRE

PURPOSE:To attain the target temp. precisely by calculating temp. rise of a running wire with a control means, and adjusting the input heat amount of an electric heating means in accordance with the data of temp. rise. CONSTITUTION:A control means 12 calculates the corrected heating input amount from comparison of the sensed temp. given by a temp. sensor 4 with the target temp. given by a data input part 15, the data of a linear velocity sensing means 2 consisting of a contact roller 2a and a tacho generator 2b, and the initial temp. and the reference heating input amount. In the control means 12, namely, the ratio of the temp. rise data corresponding to the input heat amount due to either initial or arbitrary regular/reverse thyristors 6, 7 to the target temp. rise data is multiplied 13 with input heat amount, and thus a power amount adjusting means 3 is driven. In case the target temp. rise is not obtained by the first time corrected heating input amount or in case the linear velocity has varied, correction is repeated on the basis of specified computations.