Milacron Inc. said the superfast Roboshot Si-B all-electric press has artificial intelligence.
The press comes in four clamping-force sizes, from 55-330 tons. During injection, the Si-B can accelerate from a standstill up to 300 millimeters a second in just 27 milliseconds. The high speed makes the machine well-suited for molding thin-wall and precision parts such as electrical connectors and cell-phone parts.
The Cincinnati company said the acceleration is the fastest of any all-electric injection molding machine now sold.
Overlapping functions because of the all-electric power, and artificial intelligence for mold and ejector protection and metering/injection, also reduce cycle times.
Roboshot presses are made in Japan by Fanuc Ltd., Milacron's partner. Si-B machines use Fanuc's newest Alpha series of servo-electric motors and drives, which have reduced inertia and quicker response than earlier models. The control is 10 times faster than before, Milacron said.
The injection unit features a new design that is more rigid and robust. The press uses fiber-optic communications, making it immune to electronic “noise” in a plastics factory.
Milacron also has improved the mold protection capabilities of its Ohio-made, all-electric injection press, the Powerline, with new software called Mold Guard and Ejector Guard now featured on the Xtreem controller.
The software compares clamp and ejector forces, establishing force reference curves padded with an alarm band. Milacron said that allows a much higher level of sensitivity than the Powerline's standard mold protection system, and accounts for normal force variations if the measured force exceeds pre-set limits.
The software can be programmed to monitor the clamp's entire stroke, or just a portion of the stroke. The ejector's entire stroke is always monitored.
Both software programs automatically compensate for force increases because of changes over time because of friction or temperature. The actual force and maximum deviation amounts are shown on-screen to allow for troubleshooting of mold problems.
Mold Guard tracks the force needed to close the clamp, using the previous cycle as the reference curve. If the force exceeds the alarm-band limit, the clamp retracts.
Ejector Guard operates the same way. When excessive force is detected, the system immediately stops forward movement of the ejector bar.
The Xtreem is a personal computer-based controller that runs on Windows NT.
Tel. (888) 645-2276, fax (800) 282-8082.