| 摘要 |
PURPOSE:To simply change and adjust a flow state of a sole injection molding material and to uniformly fill the sole injection molding material every nook and corner in a cavity of the sole by exchanging a flow rate adjusting tool provided on a gate of a sole injection molding metal mold. CONSTITUTION:As for the metal mold, a metal mold consisting of a last mold 1, a bottom mold 3, and a pair of left and right molds 2, 2 is used, and by assembling these molds, a sole molding cavity 4 corresponding to the sole is constituted. A runner 5 continues along a mating face of both the left and right side molds 2, 2 from a resin injection port 6 and extends to the vicinity of a stepping part of the sole molding cavity 4 of the bottom mold 3. The metal mold is constituted by allowing the runner 5 and the sole molding cavity 4 to communicate with each other by a gate 7, and as for the gate 7, one piece or several pieces are provided. In a flow rate adjusting tool 8, a through-hole 9 which a sole molding material passes through is formed, and a screw for attaching it to the gate 7 of the bottom mold 3 is provided. By exchanging the flow rate adjusting tool 8, a flow state to the sole molding cavity 4 of an injection molding resin material can be adjusted simply, and it can be filled uniformly in a well-balanced state every nook and corner of each part. |
