Simple Solutions That Work! Issue 7

achieved by a “closed-loop” servo control system. The unique construction permits use on zinc, and hot chamber magnesium machines as well as aluminum. Robotic Spray Units: Die Casting Robotic Spray System are self-mounted robots, speci cally designed to meet the challenging requirement of the die cast environment. Six-axis servo controlled robots carry a maximum static payload of over 300 lb. Floor Mounted Units: Designed for use on 800 to 1200 ton die casting machines. Floor mounted reciprocating die spray systems are ideal for die casters that have short-run work. Box style manifolds let you quickly and easily change spray heads. SERVO MOTORS Reciprocating sprayers often feature a servo motor drive system attached directly to the gear reducer for maximum torque and efficiency. Because there are no air cylinders, hydraulics, cams, or motor brushes, reliability is greatly improved. Continuous positioning accuracy is achieved by a closed-loop resolver feedback system. Positioning accuracy of .020 inches provides constant repeatability. AIR AND LUBE VALVES No external valve packages are needed. All air and spray lubrication valving is mounted directly on the sprayer. A filter on the lube input line prevents foreign material from entering the system. One lube zone comes standard with additional lube zones and Super Air Blast optional. The Air Blast is standard. The sprayers can spray lube and blow-off either simultaneously or sequentially. Additionally, if Lube 2 and Air Blast options are selected, any combination of Lube 1, Lube 2, or Air Blast can be selected and programmed to function independently at any time. CONTROLS AND REMOTE Reciprocating sprayers often feature color touch screens with controlled HMI that can store 500 parts programs alphanumerically in Flash memory, automatically recalling specific spray patterns for each part. The easy-to-use controller has touch screen and backlit display to guide you step by step through programming options. No special computer training is needed. The handheld remote allows the operator to manually program the sprayer movement from a visually convenient location near the open die. Spray and air blast zones are monitored during programming for maximum spray efficiency. MANIFOLDS There are different types of manifolds available, including bar and picture frame or manifolds, as well as custom manifolds for special die applications. Bar and Dual Bar Manifolds: The most common type, Bar Manifolds (figure 4) are best utilized for general die spraying by sweeping and dwelling in multiple positions. Bar and Dual Bar Manifolds are typically 13 to 37 inches long and offer up to nine spray heads. Picture Frame or Box Manifolds: If your die is more complex or you want to spray the die from one fixed point, a Picture Frame or Box Manifolds (figure 5) may be suitable. They come in a multitude of standard sizes to fit most any application. Picture Frame or Box Manifolds typically produce the shortest spray time, and are available in both single and dual zone capability. Picture Frame or Box Manifolds are very easy to remove. Simply unhook the four spray arms mounting platform latching arms, (two on each side of the manifold), and lift the manifold off the platform seats. It’s that easy! There are no air or lube lines to disconnect. Simply reverse the procedure to install a different manifold, and you’re back in production. Spray heads can be placed in an unlimited number of patterns for even the most complex parts. They can also be fitted with standoffs and on and off plane Ts to give even more location options. Conversion adapters are also typically available to spraying technology on existing systems. Continued on page 24 23 Figure 3 Figure 4 Figure 5