| 摘要 |
PROBLEM TO BE SOLVED: To enhance manufacturing efficiency and the safety of work by systematizing a manufacturing process to minimize a process requiring the manual work of a worker. SOLUTION: The core draw-out device is constituted of roll molding molds 12 each of which comprises two freely openable and closable mold halves 26 and constituted so that a cavity 28 for molding a foamed urethane roll is provided inside the mold halves 26 and an injection hole 42 for permitting the injection of the urethane raw material in a cylindrical cavity 30 demarcated at the time of mold clamping is provided to one of the mold halves 26, a round rod-shaped core 40 concentrically set to the cylindrical cavity 30 of each of the roll molding rolls 12 so as to be freely inserted in and drawn out from the cylindrical cavity 30 and a core draw-out mechanism 176 provided at a constant position close to a route through which the roll molding molds 12 are intermittently fed at every required interval and drawing out the core 40 in a predetermined direction from each of the roll molding molds 12 arriving at the constant position to stop. |
