Method and apparatus for producing cleaning blades

摘要

This disclosure relates to a production method for a cleaning blade made of thermosetting type polyurethane comprising mixing and stirring the liquid of a polyurethane prepolymer which is a raw material component for a thermosetting type polyurethane polymer and the liquid of a crosslinking agent, discharging the mixture (U) thereof into a die having a concave cross section in a molding drum (20), pressing it to the outer peripheral face of the molding drum (20), heating and pressurizing it via an endless belt (24) synchronized with the rotation of the drum (20) to continuously mold a banded blade molding (S) having a fixed width, and cutting the blade molding (S) by a fixed length after cooling it down.