K 2013: Machine, screw, and color change advances for Sumitomo (SHI) Demag

High-speed packaging, single step touch-screen production, new pigment dosing system for fast color changes, and a low-feed plastification compression screw (minus the compression) are among the K 2013 highlights for Sumitomo (SHI) Demag (Hall 15 Stand D 22). A Systec SP (Speed Performance) 280 fast cycling packaging injection molding machine will mold 1.2-liter polypropylene buckets (84g) cycling at 5.3 seconds. The buckets will be labelled with parallel part removal and IML label insertion. The Systec SP combines an electric motor for dosing procedure and hydraulic motors for mold and injection movements.

Elsewhere, a fully automated injection molding IML/IDL production cell will produce 5-inch touch-screen displays. The IML screen foil is handled and inserted into a lacquer decorated molded frame, in a single step to ISO Class 7, with the whole process managed by a suspended 6-axis industrial robot. In each cycle, the robot takes one conductive inmold label (IML) and positions it onto the fixed half of the single cavity mold. At the same time, the inmold Decoration (IMD) carrier on the closing side above the moving mold half, positions a carrier foil with individual images for decorative coating. The narrow frame is injected and decorated using inmold decoration in black piano lacquer finish. Once the mold is closed, the display is injection molded in polymethyl methacrylate (PMMA) using a film gate and variotherm mold temperature control. Next, a CO2 laser removes the part from the film gate, and it is then cured under UV to harden the topcoat....

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