| 摘要 |
The molder has a plurality of piston heads with different diameters on ends of tie bars combined with the injection molder, makes the piston heads actuated within a fixed die. It can increase a shaping force without increasing the cross-section area of the cylinder. It comprises tie bars(6) connected to a fixed plate(3) of the injection molder(1); piston heads(8,8') having respective oil seals(7) on the ends of the tie bars(6); shape cylinders(9,9') connected to the piston heads(8,8'); oil inlet holes(10,10')/discharge holes(11,11') formed in the cylinders(9,9').
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