| 摘要 |
<p>A safety device for machine for injection moulding of plastic materials which comprises at least one plate movable towards a fixed plate, separated from the surrounding space by means of two gates, each of which is movable axially with respect to the frame of the machine, is described.The device comprises control means which are arranged to detect the opening movement of a first gate and consequently actuate members adopted to prevent the movement of said movable plate, the second gate being mechanically connected to the first gate by stop means which adopted to prevent the opening movement of the second gate when the first gate is in the closed position.</p> |
