| 摘要 |
The present invention is to provide apparatus having a vacuum box, wherein the changing manner of the mold can be improved, the sealing structure of the vacuum box or an injection nozzle is simple and easy, and the cost of the apparatus is reduced and preservation of the apparatus is improved. The apparatus has a vacuum box 11 for surrounding a mold 1 into an airtight situation. The vacuum box 11 comprises an upper casing 12 and a lower casing 13, and they are divided at the parting surfaces 14, 15 which are formed as inclined surfaces front the operator-side to the opposite-side upwardly. An O-ring 18 as the sealing mechanism means of the vacuum box 11 is located in a groove 17 on the parting surface 14. The mold 1 is divided into an upper part 2 and a lower part 3, and the upper part 2 and the upper casing 12 are fixed on an upper plate 42 of a mold-clamping device 41, and the lower part 3 and the lower casing 13 are fixed on a lower plate 43 of the mold-clamping device 41. An injection nozzle 33 is connected to the lower part 3 through a hole 34 of the lower casing 13, and an O-ring as the sealing mechanism is located between the through position and the injection nozzle. <IMAGE> |
