New electric models and hybrids at IPF show. (Keeping up with Injection molding).A hybrid electric model, a two-component all-electric machine, and an electric vertical unit were introduced at the Japan IPF (Itanium Processor Family) See Itanium. show by Sumitomo Heavy Industries (represented here by sm Plastics Machinery Inc., Norcross, Ga.). Fast cycling is claimed for the new hybrid SE-HY series. They have electric plastication and toggle To alternate back and forth between two states. toggle - To change a bit from whatever state it is in to the other state; to change from 1 to 0 or from 0 to 1. This comes from "toggle switches", such as standard light switches, though the word "toggle" actually refers to clamping plus hydraulic-powered injection with accumulator A hardware register used to hold the results or partial results of arithmetic and logical operations. (processor) accumulator - In a central processing unit, a register in which intermediate results are stored. assist at rates up to 800 mm/sec. The line is based on Sumitomo's SES horizontal electric line. The first models are the SE350HY (385 U.S. tons, see photo) and SE450HY (495 tons). At the show, the 385 tonner produced 15.4g PP drinking cups in a 12-cavity mold with a cycle time of 4.5 sec (shot weight was 184.8 g). Also new from Sumitomo is an all-electric two-component model with side-by-side injection units. The SE200D-CI D-CI Double Excitations In Configuration Interaction unit (220 tons) has a servodriven rotary mold table behind the moving platen A long, thin cylinder in a typewriter or printer that guides the paper through it and serves as a backstop for the printing mechanism to bang into. It is typically made of a hard rubber or rubber-like material. See carriage and typewriter. that is said to be faster and have better position accuracy. Sumitomo also rolled out a vertical all-electric insert molder with servo-driven rotary mold table. The SR75 (82.5 tons) joins 18- and 50-ton vertical electric models in the company's line. Sumitomo also updated its SE18D electric model (20 tons) with higher injection speed (500 mm/sec vs. 300 previously). New software reportedly improves plasticating consistency by 40% and shot repeatability by 20%. The upgrades also appear on every model in the line. A special model SE100D (110 tons) was shown with an extra-large servo motor and ball screw A ball screw is a mechanical device for translating rotational motion to linear motion. A threaded shaft provides a spiral raceway for ball bearings which act as a precision screw. that raise injection speeds to 800 mm/sec. Tel: (770) 447-5430, www.sumitomopm.com |
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