| 摘要 |
A mold clamping mechanism of injection molding machine in which a high pressure mold clamping cylinder, a low pressure high speed mold closing cylinder and a high pressure switching cylinder are arranged in a series relation, said mold clamping cylinder and mold closing cylinder are interconnected with each other by way of an opening to pass the pressure oil, the forward portion of a high pressure switching piston in said switching cylinder is inserted through said opening to close said opening, a mold clamping ram in said clamping cylinder is forced ahead to close the mold by advancing a high speed mold closing piston in said mold closing cylinder, and said mold clamping ram is pushed by the supply of pressure oil through a passage in said switching piston to clamp the mold tightly.
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