| 摘要 |
PURPOSE:To mold various types of articles with a resin by commonly using a center block, effectively kneading a melt resin for conducting resin molding with a good balance, and selecting a resin amount in accordance with the articles in conducting resin molding. CONSTITUTION:In a molding die in which a center block can be commonly used for various types of articles by connecting resin paths to each other with a through runner in the resin paths connecting pots A, B, C, D provided in the center block to cavities 20 of a cavity block, a lower through runner 16b and an upper through runner 18b are provided as the through runner on parting surfaces of a lower cavity block and an upper cavity block. The both are partially overlapped so that the resin paths are bent between the upper and lower molds. The lower through runner 16b is so disposed as to be extended in the longitudinal direction of the upper through runner 18b at the overlapped part thereof on the upper through runner 18b. |
