发明名称 MOLDING TOOL AND MOLDING METHOD FOR RUBBER PRODUCT
摘要 PROBLEM TO BE SOLVED: To provide a molding tool and a molding method for a rubber product for improving the release properties of the rubber product manufactured by molding from the molding tool and also improve the flash removing workability and the manufacturing quality of the rubber product. SOLUTION: A molding tool 1 for molding a product section by a method of injecting a flowing rubber-like elastic material into a cavity CV is provided with a top force 3 having the cavity CV, a gate section 5 and a spool section 6 disposed in said order starting from a parting line PL in the mold opening direction, and an umbrella-shaped valve V1 (a product section) and a spool section 6 combined integrally are retained on the top force 3 at the time of mold opening, the umbrella-shaped valve V1 is released from a bottom force 4.
申请公布号 JPH1190960(A) 申请公布日期 1999.04.06
申请号 JP19970273314 申请日期 1997.09.22
申请人 NOK CORP 发明人 NAKAMURA FUJIO
分类号 B29C33/44;B29C45/02;B29C45/26;B29K21/00;(IPC1-7):B29C45/26 主分类号 B29C33/44
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