公开(公告)号：US4957530A

公开(公告)日：1990-09-18

申请号：US347644

申请日：1989-05-05

申请人： Sigezo Fujii ,  Tsuneya Uesugi ,  Kiyoshi Sakamoto

发明人： Sigezo Fujii ,  Tsuneya Uesugi ,  Kiyoshi Sakamoto

IPC分类号： C03B11/02 ,  C03B11/16

CPC分类号： C03B11/02 ,  C03B11/16

摘要： A molding machine having a plunger replacement apparatus is disclosed. Molding operation of the molding machine for a plunger requiring replacement is only discontinued, and the plunger requiring replacement is taken out to a plunger replacing position through a reciprocating mechanism. Moving yokes are locked by locking mechanisms to fixed yokes at the pressing and plunger replacing positions. The position of the plunger is always held constant during the process of replacement at the plunger replacing position and also when the plunger is returned to the pressing position. When the plunger requiring replacement is taken out in a plunger replacing position, molding operation for the molding machine is continued by using the remaining plungers, thereby minimizing possible drop in molding operation productivity and preventing undesirable changes in temperature distribution conditions.

摘要翻译： 公开了一种具有柱塞更换装置的成型机。 仅需要更换的柱塞的成形机的成型操作才被停止，并且需要更换的柱塞通过往复机构被取出到柱塞更换位置。 移动轭被锁定机构锁定在按压和柱塞更换位置的固定轭。 在柱塞更换位置的更换过程中以及当柱塞返回到按压位置时，柱塞的位置总是保持恒定。 当需要更换的柱塞在柱塞更换位置被取出时，通过使用剩余的柱塞继续进行成型机的成型操作，从而最小化模制操作生产率的可能降低并防止温度分布条件的不期望的变化。