| 摘要 |
<p>A hydraulic press (15) has smooth columns (26) that mount relatively movable mold support platens (20, 22) on a bed (16) and a ram or crosshead (18). The bed (16) and ram (18) are rigid, low deflection fabricated members mounted on the columns (26). The clamps (120) that clamp the movable ram (18) in molding position have integrated pressing and stripping cylinders (133) for performing the actual molding operation. The movable ram member (18) is opened and closed with actuators (35) separate from the molding force cylinders (133). The construction permits making a lighter weight press without a heavy crown at the top of the press.</p> |
