| 摘要 |
PURPOSE:To keep an extrusion plate with a large rigidity and to make it possible to always move the extrusion plate smoothly, by pinching strongly the extrusion plate from both sides with a fall-out stopping head at an apex of an extrusion rod and an apex of an outer cylinder. CONSTITUTION:An injection molding die 1 is set between die plates 2 and 3. A fall-out stopping head 40 of an extrusion rod 23 is contacted with a face of an extrusion plate 17. Then, an outer cylinder driving part 52 is worked to move an outer cylinder 51 toward the extrusion plate 17 and contact the apex. The extrusion plate 17 is thereby pinched strongly from both sides with the outer cylinder 51 and the fall-out stopping head 40 and becomes to be in a body. A determined injection molding is carried out in this state. As the thickness L of a die plate 3 can be set to be sufficiently larger than the thickness l of the extrusion plate 17, it is possible to ensure sufficient straight- forward movability of the outer cylinder 51 and an extrusion rod 23 held through a bearing 44.
|
