| 摘要 |
PURPOSE:To improve dimensional accuracy of an injection molded product, by compressing a contraction part of a resin in a cavity when being cooled by a compression device directly connected to a cavity face, also dwelling by an injection device. CONSTITUTION:A clearance between a molded resin and a cavity wall face formed due to cooling is omitted, by compressing a cavity face constituting part 11 by a compressing device 12 and compressing an injection molded resin in a cavity 10. Also a resin flowing into a cavity 10 due to dwelling by an injection device 13 is compressed by the compressing device 12 and filled in the cavity 10 uniformly. Further, because dwelling is performed only until the resin in the gate part 14 solidifies, internal strain of the gate part 14 of the molded product becomes small. |
