Page 16 - MetalForming December 2015

Reduce the Footprint
hydraulic-operated pilot-release mech- anisms. Here, Coe provided what reportedly is the industry’s first servo- driven pilot-release mechanism, able to achieve higher speeds than conven- tional mechanisms. As explained by Coe director of engineering Jim Ward, “A servo motor rotates an eccentric mechanism to drive the pilot-release mechanism. This design allows us to achieve 60 to 70 strokes/min. with full pilot release.”
The servo-driven feeder-straight- ener has 4-in.-dia. straightening rolls and 6.3-in.-dia. pinch rolls, selected for processing heavy-gauge and high- strength materials. The small straight- ener rollers provide a small radius around which to bend the material to accommodate AHSS, which needs to be bent more severely in order to exceed its high yield point.
Adds Ward, “The straightener-head design has close centers to effectively yield thinner yet stronger material, as well as increased force delivery so a
wider range of materials can be processed and flat- tened.”
Another unique
feature of the new
line is a pivoting
pull-off roll assem-
bly. This allows
tension to be
maintained on the
coil to prevent
clock-springing, and it enables higher line speeds for the compact coil-line process. Additionally, the roll system is self-leveling to accommodate a wide range of material thicknesses.
Proof is in the Performance
Describing the benefits Nahanni has realized with its new coil line, Zupanec notes significantly reduced coil changeover time, improving efficien- cies. Coil handling and safety also have been improved, he says, with reduced trial-and-error times to meet required
NORTH AMERICA
www.jier-na.com
To optimize slack-loop storage and maximize feed speed (the coil line can support press speed to 70 strokes/min.), the coil line employs lasers to track material location.
specifications that had previously chal- lenged the company. And, whereas press rate once exceeded feed-line capability, the new line promises to help improve throughput.
“We now can deliver products from high-strength materials,” concludes Zupanec, “that require a higher flat- ness tolerance, allowing us to obtain more of this type of automotive work with the hope that as we continue to evaluate this new product line, we’ll be able to expand and add additional metalforming technology.” MF
JIER SERVO TECHNOLOGY
14975 Cleat St., Plymouth, MI 48170 • 734.404.6683
14 MetalForming/December 2015
www.metalformingmagazine.com