| 摘要 |
A twin plate closure system for an injection molding machine, comprises a fixed tensioning plate and a movable tensioning plate, with fixed columns that have closure pistons that are hydraulically connected. A section of the piston is coupled to spindle drives, and the spindles are driven by a rotational drive with hydraulic piston-cylinder units. A twin plate closure system for an injection molding machine, comprises a fixed tensioning plate and a movable tensioning plate, with fixed columns that have closure pistons that are hydraulically connected. A section of the piston is coupled to spindle drives, and the spindles are driven by a rotational drive with hydraulic piston-cylinder units. The pressure chamber (22) of each piston-cylinder unit (20,21) is connected directly to the closure chambers (10,15) via a pipe (33). The closure pressure chamber is connected to the opening pressure chamber via a flow passage. The latter contains a valve which has a piston type valve body that closes the flow passage. The system pressurizer consists of a filler pump, which can be used to pump the medium from a tank to a system pressure line via a filter and a three way valve.
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