| 摘要 |
PURPOSE:To install a base platen at the upper part of a machine base and consequently enhance the accuracies of a mold clamping device and of a stretch-blowing device and increase the mechanical strength of a molder by a structure wherein, a rotating table is made in an annular form so as to connect machine bases and a base platen with supporting members across the inside space of the rotating table and the outside of the rotating table. CONSTITUTION:Pairs of supporting members 100, each of which consists of a square column, are arranged on machine bases 101 of injection operating sections A and of stretch-blowing operating sections C. At the same time, a supporting stand 102 consisting of frames is provided at the center of the machine bases 101. A base platen 103, the periphery of which is made into an octagonal shape, is supported and fixed onto the upper parts of the machine bases 101 by means of the supporting stand 102 and the supporting members 100. In addition, ribs 104 are integrally molded so as to extend from the sides of a quadrilateral hollow part, which is made at the central part of the base platen 103, to both the injection operating parts A. A rotating table 105 consists of a cast iron annular main body 106 and eight steel plates 107, which are bolted onto the undersurface of the annular main body 106. Further, the annular main body 106 has a structure consisting of an inner ring and an outer ring, between which arms 108 connect at fixed intervals, for weight reduction. The steel plates 107 are mounted over the undersurface of the inner and outer rings and of the arms 108.
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