| 摘要 |
The present invention relates to a power locking device for mold clamping. According to the present invention, the power locking device for mold clamping, comprises: a manifold block (2); an oil pump (4), connected to one perforated hole (6) of the manifold block (2); an oil tank (5), connected to the other perforated hole (7) of the manifold block (2); and a plurality of hydraulic valves (11, 12, 13, 14), connected to respective other perforated holes (8) of the manifold block (2) and thereby providing hydraulic pressures for respectively clamping and unclamping a mold clamping device, wherein a first port (31) communicating with an hydraulic pump (4), a second port (32) communicating with the mold clamping device, and a third port (33) communicating with the oil tank (5) are disposed on one end portion of a hollow portion (34) of a valve body (40) of the hydraulic valve, a first valve sheet (38) and a second valve sheet (39) are facing each other and disposed between the first port (31) and the second port (32), and between the second port (32) and the third port (33), respectively, and the first valve sheet (38) is installed so as to be movable by a spring (62). |
