| 摘要 |
PURPOSE:To easily and quickly replace molds by a structure wherein a positioning mechanism consisting of a pair of stopper members having abutting faces, between which the predetermined angle is set in the plane view, and a lower mold having a pair of edges, between which the same angle as said predetermined angle is set in the plane view and which abut against the stopper members for positioning, is equipped. CONSTITUTION:Under the condition that a lower mold 2 is levitated from a seating member 3 by raising the ball bearings 14 of holding mechanisms 5, a holding plate 16 is raised by means of a cylinder mechanism 15 until a sliding body 22 abuts against large diameter parts 20a so as to raise cylinder mechanisms 17 in order to push and slide the lower mold 2 by the piston rods 17a of the cylinder mechanisms 17, resulting in abutting the rear edges 11 and 11' of the lower mold 2 against the abutting faces 12 and 12' of stopper members 4 and 4'. In this case, since the abutting faces 12 and 12' and the rear ends 11 and 11' make the same angle or angle of almost 90 deg. each other in the plane view, the lower mold 2 is slid by being guided along the abutting faces 12 and 12' so as to be positioned. |
