MOLD CLAMPING DEVICE

PROBLEM TO BE SOLVED: To provide a mold clamping device having a structure in which a uniform surface pressure distribution is generated on a whole mold parting surface even when the number of tie-bars is reduced to three or two, and a burr can hardly be formed. SOLUTION: The mold clamping device comprises a machine base; a fixed plate which is mounted on the machine base, is fixed to the machine base, and holds a fixed mold; a fixed platen which is mounted on the anti-mold side of the fixed plate; a movable plate which is mounted slidably in the mold opening/closing direction on the machine base and holds a movable mold; a movable platen which is mounted slidably in the mold opening/closing direction on the anti-mold side of the movable plate; and two or three tie-bars which receive mold clamping force. In the mold clamping device, between the fixed plate and the fixed platen and between the movable plate and the movable platen, the mold clamping force is transmitted by a plurality of point contacts or a plurality of line contacts. COPYRIGHT: (C)2011,JPO&INPIT