| 摘要 |
PURPOSE: To accelerate filling and exhausting of a mold by forming a resin passage of a caillary tube disposed fixedly and partly protruding into a packing and a channel communicating with a mold cavity adjacent thereto, and cooperating with needles insertable into the channels with the channel, thereby preventing a damage of a packing. CONSTITUTION: The mold comprises a base plate 1 and a cover plate 2 movable to each other, and a packing 6 engaged within a channel 5 for partly deciding a cavity 3 compressable between the plates 1 and 2. The packing 6 has a passage 8 for introducing or discharging a material into or from the cavity 3. The needles 13 insertable into the channels are provided in the passage 8 to cooperate with the channels 10. Thus, a damage of the packing is prevented, thereby accelerating filling and exhausting of the mold. |
