B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
18/680
B29C 45/12 (2006.01)
Patent
CA 1328719
ABSTRACT OF THE DISCLOSURE An injection molding machine and method of operation is disclosed having a plurality of accessory arrangements for molding a plurality of piece parts in efficient overlapping time cycle using primary and secondary molten plastic injection units, primary and secondary clamping units, a plurality of injection units in various arrays including molding piece parts in reverse or uniform orientation. In particular, an injection molding machine has a plurality of molding stations arranged in tandem where each station includes at least one mold, each mold comprising a pair of cooperating mold halves, fixed and movable platens supporting the mold halves; a single primary clamping means and a plurality of secondary clamping means for opening and closing the molds in accordance with a plurality of permutations and combinations at the direction of a programmed clamping control means, and a process for opening and closing molds comprises the steps of closing all molds by means of the primary clamping means, clamping the mold halves of each mold individually by the secondary clamping means, connecting the primary clamping means to the molds at all stations by means of a serial connection with secondary clamping means, unclamping a first pair of mold halves at a first mold station, and separating the mold halves at the first station by moving the remaining molds at the remaining stations by means of the primary clamping means and the serial connection.
616478
Brown Paul P.
Schad Robert D.
Husky Injection Molding Systems Ltd.
Swabey Ogilvy Renault
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