Mold clamping device and method
AssigneeThe Japan Steel Works, Ltd.
InventorsMasanosuke Ikegaya, Yukio Fujiwara, Kazunari Suzuki, Toshimitsu Okuoka
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Abstract
Moving servo motors of molds in synchronization with the operations of platens which enables fine patterns or shapes to be formed even on a large molded article. A mold clamping device forms patterns or the like on a molded article by detecting a mold position of a second platen among first, second, third platens with digital mold opening/closing position detector, and driving servo motors for molds of the molds in synchronization with a digital mold opening/closing position signal from the digital mold opening/closing position detector.
Claims10
A mold clamping device that moves, with an actuator, at least a second platen among first, second, and third platens provided on a base via a tie bar, and closes and opens first and second molds provided on the second and third platens, respectively, the mold clamping device comprising:
- servo motor(s) for the molds provided in at least one or both of the respective molds;
- and
- digital mold opening/closing position detection means provided on the base and detecting a mold position of the second platen, wherein
- one or both of the servo motors for the first and second molds are configured to be driven in synchronization with a digital mold opening/closing position signal from the digital mold opening/closing position detection means.
A mold clamping method for moving, with an actuator, at least a second platen among first, second, and third platens provided on a base via a tie bar, and closing and opening first and second molds provided on the second and third platens, respectively, the mold clamping method comprising:
- using servo motor(s) for the molds provided in at least one or both of the respective molds and digital mold opening/closing position detection means provided on the base and detecting a mold position of the second platen;
- and
- driving one or both of the servo motors for the first and second molds in synchronization with a digital mold opening/closing position signal from the digital mold opening/closing position detection means.
Dependencies are inferred from the claim text.