Düsseldorf, Germany — There were two live optical molding demonstrations performed by injection molding machinery producers at K 2019 in Düsseldorf.
Tokyo-based Toshiba Machine Co. Ltd, which will be renamed Shibaura Machine Co. Ltd in April 2020, molded a complex automotive LED headlamp optical lens part.
The lens was designed in LSR by Wyoming, Mich.-based LumenFlow Corp., and Toshiba referred to it as a part "that cannot be replicated with more rigid materials." Lumenflow has more than 60 optical LSR molding machines running in its plants in the U.S., Mexico, Hungary and China.
The LSR used was Silastic MS-1002 Moldable Silicone from Horgen, Switzerland-based Dow Europe GmbH, molded on a 50-ton Toshiba ECSXII all-electric injection molding machine, supported by a Top 5000 P LSR mixing and dosing unit from Oftering, Austria-based Elmet Elastomere GmbH. Toshiba said integrated the hot runner control allows easy conversion from a LSR machine to a thermoplastic molding one.
An FAA-015S-15-8.8 takeout robot with dual function end-of-arm-tooling (EOAT) from Kyoto, Japan-based Yushin Precision Equipment Co. Ltd removed the parts from the mold, a universal base and two-cavity LSR mold in RoyAlloy stainless steel with a single-drop cold runner system, all supplied by Brea, Calif.-based M.R. Mold & Engineering Corp.
Yushin says the robot is "more agile, smarter, faster than previous models, with cycle time 10 percent faster than predecessors." Its features include active vibration, arc motion and adaptive motion control.