| 摘要 |
A die opening and closing device for a movable die plate 2 and a fixed die plate 1 includes a toggle link 5 disposed between the movable die plate 2 and a die tightening housing 8, a cross head 6 for flexing the toggle link 5, and a motor-driven ball screw 7 penetrating through the die tightening housing 8 and inserted into the cross head 6, and this die opening and closing device is provided with die thickness adjusting means 9 for adjusting the die thickness S when the die is tightened by extension of the toggle link 5, and ball screw rotation control means 20 for controlling constant the cracking gap, and a foamed resin molding machine is presented, together with its operating method. |
