| 摘要 |
PURPOSE:To arrange so that the action of a spring to be provided on an insert having pin may become stable and the setting of the pin easy by providing a pressing weight on a mold in a sliding manner in the projecting direction of an insert holding pin at another end of the pin whose edge projects into the interior of a mold. CONSTITUTION:An insert 3 is attached in the interior 1a of a mold 1 and if a molding base 2 of the mold 1 is closed, the insert 3 is fixed by a movable insert holding pin with a spring 4. Later if resin 5 is filled into the interior 1a of a mold by a molding machine under high pressure, the movable insert holding pin 4 is pushed out the mold 1 by resin pressure resisting against the resilience of a spring 6. After the termination of molding, if the device is opened, a pressing weight 7 pushes the movable insert holding pin 4 back to its original position without fail. |
