| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a sprue device capable of appropriately changing a flow rate of a cooling medium to correspond to e.g. a heat source range. <P>SOLUTION: A cooling circuit includes: a diversion channel (cooling path constituting water introducing/discharging path) 15 arranged in a device body 12 along the circumferential direction: and a cooling bush device S arranged along the axial direction to communicate with the diversion channel 15. The plurality of cooling bush devices S can be disposed in an appropriate angular range in the circumferential direction of the device body 12 within a range of a runner heat source in the sprue device 10. Since the flow rate of a cooling solvent relative to the range of the runner heat source can be changed appropriately, the sprue device 10 can be locally and efficiently cooled. Therefore, since the flow rate of the cooling solvent can be appropriately changed to correspond to the heat source range, cooling efficiency can be improved. Since the cooling bush devices S can be disposed in any portions intensively or dispersively, the complicated cooling circuit can be configured without dividing it like conventional cases. <P>COPYRIGHT: (C)2013,JPO&INPIT |
