| 摘要 |
PURPOSE:To obtain a multi-gate resin molding method capable of enhancing a gate balance accuracy in resin amount and molding a stable product in injection compression molding. CONSTITUTION:A melt resin injected from an injection molding machine is injected into a plurality of variable-capacity chambers 12 each provided with a resin amount adjusting means. The melt resin contained in the respective variable-capacity chambers 12 is injected into a cavity K. The resin amount adjusting means adjusts an injecting resin amount by adjusting the position of an extruding member 14 sliding in each of the variable-capacity chambers 12. In the injection process, the extruding member 14 provided in the variable- capacity chamber 12 is connected to a hydraulic device 15 and moved by the drive of the hydraulic device 15, and a shut-off pin 16 connected to the extruding member 14 is moved from a gate 11 toward the cavity K, whereby the gate 11 is opened, and the melt resin in the variable-capacity chambers 12 is injected into the cavity K. |
