| 摘要 |
PURPOSE:To easily engage and disengage a platen side and a mold side extrusion plates and to improve workability and safety by arranging a groove engaging members, which are engaged or disengaged with each pawl moved forward and backward by hydraulic pressure, at outer peripheral part of the mold extrusion plate. CONSTITUTION:At right and left sides for both end parts of upper and lower parts of the extrusion plate 59, four grooved blocks 62 as engaging member having grooves 62a are fixed by pins 63 etc., and at the grooves 62a of the grooved blocks 62, engaging pieces 56b of the pawls 56 are engaged by moving forward a piston rod 50. In this way, the platen side extrusion plate 43 and the mold side extrusion plates 59, 60 are integrated firmly in a body. Further, by moving backward the piston rod 50, the engagement of the engaging pieces 56b and the grooves 62a is disengaged to separate between the extrusion plate 43 and the extrusion plates 59, 60 as separated bodies.
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