| 摘要 |
PROBLEM TO BE SOLVED: To provide an easily and inexpensively producible die flow divider which can highly efficiently exchange heat with a refrigerant fed into a cooling hole thereof, and enables a portion requiring cooling to be almost uniformly cooled, and to provide a cooling mechanism for a flow divider. SOLUTION: The cooling mechanism for the flow divider is characterized in that: a sealing wall member 6 which is formed with a cooling chamber 5 at the inside and is provided with a refrigerant inflow port 61 and a refrigerant outflow port 62 and seals the opening of the cooling chamber 5 is provided with a definition part 63 in a protruded condition, which has an outer circumferential face contacted with the inner circumferential face of the cooling chamber 5 and also defines a refrigerant storage part 8 with the inner back of the cooling chamber; on the outer circumferential face of the definition part 63, a cooling groove 64 for an outgoing passage from the refrigerant inflow port 61 to the refrigerant storage part 8 and a cooling groove 64 for a returning passage from the refrigerant storage part 8 to the refrigerant outflow port 62 are each formed spirally; and a refrigerant having fluidity is circulated into the cooling chamber 5 through the refrigerant inflow port 61 and the refrigerant outflow port 62 provided at the sealing wall member 6, thus, the circumference of the cooling chamber is cooled. COPYRIGHT: (C)2008,JPO&INPIT
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