| 摘要 |
PURPOSE: A cooling water supply apparatus for injection molding is provided to evenly circulate cooling water in a cooling water channel of an injection mold by simultaneously implementing the supply and recovery of the cooling water. CONSTITUTION: A cooling water supply apparatus for injection molding comprises a cooling water recovery pipe(210), a cooling water supply pipe(320), a channel shaft(340), a cooling water unit(330), and a connecting unit(350). The cooling water return pipe has a coupling member(220) and a recovery hole(212). The coupling member is coupled with a core unit and allowed to rotate. The cooling water supply pipe is inserted in the recovery hole to supply cooling water through a supply hole to an injection mold. The channel shaft is coupled to the cooling water recovery pipe on top thereof and connected to a cooling water recovery unit. The cooling water supply pipe is connected to the supply channel of a cooling water supply unit. A plurality of sealing members(360) of the channel shaft are installed between the cooling water recovery unit and the cooling water supply unit. The channel shaft is inserted in an insertion hole of the cooling water unit and allowed to rotate. A connection hole(334) of the channel shaft is connected to the insertion hole in order to supply and collect cooling water. One end of the connecting unit is coupled to the connection hole while the other end is coupled with a pipe for supply and recovery of cooling water.
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