| 摘要 |
PROBLEM TO BE SOLVED: To provide a molding device which can cut a molding cycle time by accelerating the advancing/receding speeds of a threaded core. SOLUTION: This molding device forms a communicating hole 320a and a finished product thread part 320b in a material which is inserted, to a full packing capacity, into a cavity 110a where a columnar part 134 at the tip of a threaded core 130 and a thread part 132 are formed by molds 110 and 120. In addition, a female thread part 141 to be fixed to a support 140 is formed in a male thread part 131 of the outer peripheral part of the threaded core 130, the threaded core 130 is supported by the support 140 and slides, rotating over a distance equivalent to the length of at least the thread part 132 by the actuation of a motor 210 and the engagement between the male thread part 131 and the female thread part 141. Further, the threaded core 130 sides, together with the support 140, over a distance equivalent to the length of at least the columnar part 134 by a sliding means 113a in a non-rotating state. COPYRIGHT: (C)2006,JPO&NCIPI |
