CHICAGO (July 15, 1:40 p.m. EDT) — Toshiba Machine Co. Ltd. introduced an ECN series of all-electric injection presses at NPE 2003 and showed its first remote machine communication system, dubbed iPaqet.
The ECN replaces Toshiba's EC series in presses with 45-390 tons of clamping force. The EC designation will continue to cover all-electric machines of 500 tons and larger, said Tim Glassburn, vice president at Toshiba Machine Co. America of Elk Grove Village, Ill.
The ECN sports a number of design changes, including a standard wide platen, a relocated safety drop bar and an injection unit position locator with four positions that improves plastic pressure and boosts part quality, according to the company.
Toshiba also relocated the servo motors for the injection unit, reducing the machine's footprint and opening up the design.
The ECN now has a tie-bar grease seal so it runs more cleanly, and a tie-bar bushing dust seal.
The injection unit is stronger, since the guide-bar span was shortened. Modifications to the barrel include a newly shaped feed-throat opening, which improves the charging capability of the machine when running regrind or resins with irregular pellet size, the company said.
Toshiba also made it easier to access the barrel.
Glassburn said the press running parts at NPE was equipped with a mold-cavity pressure-measurement system from Priamus System Technologies AG.
The ECN has the same basic drive system as the EC, using a belt and ball screw, Glassburn said.
Toshiba also released iPaqet software, which can do real-time monitoring of up to 24 injection presses. It displays current values and monitors the machines with X/R charting. The system includes a variety of logs, including machine stop logs, alarm logs, molded part and material lot history logs and parameter setting logs. The software stores molding setup files.