PURPOSE: To supply exactly a rubbery material to the space between paired rolls only in a controlled amount by controlling the supply of the rubbery material to the space between the rolls on the basis of a signal of the volume of rubbery material present between the rolls.
CONSTITUTION: The infrared rays images of the bank portions of rolls 2 and 3 and rolls 4 and 5 are picked up by infrared cameras 14 and 15, amplified, digitalized, processed to binary value in a signal processing circuit 26, and then sent to a memory circuit 27. Image in the visual field is divided into plural portions in the axial direction of the rolls, the binary image signal is stored, areal signal for every portion is obtained by an arithmetic circuit 29 and multiplied by given factors for each to obtain volume signals, and decision output signal is supplied to rubber supply position controllers 10 and 11 through an output circuit 30.
NAKAO TSUTOMU
KUSABA TAKESHI
