| 摘要 |
PURPOSE: A shaping drum apparatus for a green tire is provided to offer an exact symmetrical structure in an inflation molding process of manufacturing a green tire. CONSTITUTION: A shaping drum apparatus for a green tire comprises the following: an axial tube(10) formed with an air supply hole(14) and a guide slot(16a,16b); a lead screw(12) separately combined to guide blocks(18); guide sleeves(22a,22b) inserted to the inside of the axial tube in which the end of the guide sleeves are connected to guide pins on each guide block, and formed with a ring shaped supporting stand(24,26) in the outside to circularly arrange a rubber cover(32) and multiple supporting blocks(30); and a fixing plate(50) forming a clamping unit to fix a bead part of the green tire while moving to an expansion position and a retreating position by a pneumatic cylinder(46).
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