| 摘要 |
PURPOSE: A die having vacuum forming structure is provided to accurately inject a micro-fine product including a super-slim part by quickly injecting molten resin using the vacuum suction force. CONSTITUTION: Rubber rings(50) for sealing the inner space of a die are applied to assembling connecting portions of elements. When injecting molten resin, gas and air inside the die are removed and vacuumized via a vacuum suction unit(70). Recessed grooves(51) for installing rubber rings are formed at specific positions of the assembling faces of an upper fixing panel(12), a runner stripper panel(13), an upper circular panel(14), a lower circular panel(15), a base panel(16), legs, a lower fixing panel(18) and a push panel base(42). A through hole(60) as a duct of the vacuum suction unit is formed at one of the outer part forming elements. Molten resin is injected to the die quickly, and injection time is reduced. Moreover, a precise product is injected in the accurate shape.
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