| 摘要 |
PURPOSE:To obtain an apparatus characterized by that stage replacement is easy at the time of the replacement of a mold, a vacuum exhaust time is shortened, the reliability of a molded product or that of the apparatus itself is enhanced, piping work is easy and the number of piping parts is reduced. CONSTITUTION:Molds 1, 2 and piping 44 using a flexible hose are made automatically detachable by air cylinders 35, 37 and upper and lower valves 37, 43 are provided in the vicinity of the molds and a vacuum gauge 52 and an oil mist trap 55 are provided. These vacuum machineries are covered with a cover 57 and the exhaustion of the air in the cover 57 and the exhaustion of a vacuum pump 30 are simultaneously performed by a fan 56 to discharge air to a factory duct. |
