| 摘要 |
A rubber injection molding apparatus and method for simultaneously molding a plurality of work parts ( 40 ) in separate molds ( 30 ) using a single, vertically oriented press machine ( 22 ). A clamping mechanism ( 52 ) is responsive to the vertical, reciprocating motion of the press ram ( 26 ) for converting the generally vertical motion of the press ram ( 26 ) into a horizontal clamping force to squeeze and hold the molds while rubber is injected into their cavities ( 38 ). The molds ( 30 ) each have two mold halves ( 32, 34 ) joining one another along a parting line interface ( 36 ) with the mold cavity ( 38 ) in between. The mold halves ( 32, 34 ) are received in universal carriers ( 62 ), which in turn are suspended between and slideable along spaced-apart first ( 58 ) and second ( 60 ) rails. A large number of mold cavities ( 38 ) can be filled simultaneously using a vertically oriented press machine ( 22 ). The plurality of molds ( 30 ) may contain different part configurations which are filled simultaneously in a single molting operation. Because the molds ( 30 ) are not fastened to platens as in prior art vertical press machines, changeover times are substantially decreased.
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