| 摘要 |
PURPOSE:To eliminate parting line mark and bubble by a method wherein a manufacturing machine consists of a filling device to fill an elastic filling mold with filling material, a solidifying device and a withdrawing device and, after a flexible tube within the elastic filling mold is flattened together with the elastic filling mold, the filling is done by applying the pressure, which is higher than the flattening pressure. CONSTITUTION:A manufacturing machine consists of a filling device 40 to fill the interior of an elastic filling mold 10 with filling material 11, a solidifying device 60 to solidify the filling material 11 and a withdrawing device 70. The elastic filling mold 10 consists of a filling part 13 and a fixed part 14. In addition, pressing machines 56 is provided to flatten a flexible tube 55, which is annexed to the top of a filling nozzle 41, so as to flatten the elastic filling mold 10 at the start of filling in order to fill the filling material without bubbles by gradually expanding the elastic filling mold 10 by the filling pressure, which is slightly higher than the flattening pressure. The solidifying device 60 solidifies the filling material 11 by cooling or heating, depending upon the quality of the filling material 11. The withdrawing device 70 can push out a fill formed item 12 by pushing the item from the side, which is opposite to the opening part, of the elastic filling mold 10 by utilizing the elastic enlargement of the elastic filling mold 10. |
