| 摘要 |
PURPOSE:To prevent trouble such as the generation of voids or pinholes, non- filling or the like by discharging air to the outside at the time of resin sealing by providing an air vent allowing the air in a cavity to communicate with the outside, the suction passage communicating with the air vent and the suction port communicating with the outside of a mold provided to the suction passage. CONSTITUTION:A mold consists of upper and lower molds and a cavity 1 having a shape conforming to the outer shape of a molded product and the resin inflow passage communicating with the cavity 11 are provided to the upper and lower molds and the pot part 10 communicating with the resin inflow passage is provided to the upper or lower mold. The air vent preventing an inflow resin from flowing out of the cavity 11 and the relay groove 3 and communication groove 4 communicating with the air vent 2 are provided to the outer peripheral part of the cavity 11. The suction port 5 communicating with the outside of the mold is provided to a suction passage and a seal means cutting off the cavity 1, the resin inflow passage, the pot part 10, the air vent 2 and the suction passage from the open air at a part other than the suction port 5 is provided. |
