BLOW MOLDING: Injection-Blow Molding 96 Cavities!

All-electric injection machine is modified to boost output cabability of injection-blow process.

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At the K 2016 show in Dusseldorf in October, Engel Austria (U.S. office in York, Pa.) will demonstrate a dramatic boost in productivity for injection-blow molding. Using an all-electric Engel e-motion 220 machine (below) and an eight-cavity cube mold built as a proof-of- principle prototype by FOBOHA of Germany, Engel will demonstrate use of a standard injection machine to injection-blow mold large numbers of cavities in very short cycles. Blowing occurs 180° opposite the injection position of the mold. An insulating cover around the blowing station keeps the preforms from cooling off. An easix six-axis robot removes the containers and places them on a conveyor, with no effect on cycle time.

Engel claims this concept could be scaled up to 96 cavities without compromising cycle time or accuracy—well beyond the range of conventional injection-blow molding. Engel says process consistency beyond the range of standard injection-blow molding can be achieved with its self-regulating iQ weight control and iQ clamp control software. Superior mold-temperature control will be provided by six Engel e-flomo water-manifold units, each having four automatic flow-control circuits.

For more Engel K 2016 previews, see Close Up.