The international robot manufacturer, Sepro Group, is mounting its biggest display ever in China, exhibiting a total of seven robots at Chinaplas 2016. Three robots are being shown on the Sepro China stand simulating operations that are typical of automotive manufacturing. Another four robots are operating in the booths of several injection-molding machine manufacturers. The big, new Strong 50 robot represents a line of large robots designed to make 3-axis servo speed and precision available to molders who have relatively simple applications. At Chinaplas, a drawer-fed fabric-overmolding operation is simulated. The robot destacks fabric from one of two drawers and places it into a mold and then repeats the operation, taking fabric from the second drawer. Then the robot removes the fabric from the mold, simulating both part removal and refilling of the drawers.
With horizontal stroke of 3000mm, the Strong 50 is sized to serve injection-molding machines from 1000 to 1600 tons. Other new large robots, recently introduced for molding machines up to 5000 tons include the advanced 5-axis 7X Line and the technological 3-axis S7 Line. The new Strong range extends Sepro’s portfolio of universal robots – otherwise represented in the smaller Success Range – to serve machines up to 2800 tons. A Success 11 can be seen on the Sepro stand in a quality-control application involving automobile roof handles. The robot picks a handle from a conveyer belt and places it on a scale, where it is weighed. A red light indicates a bad (overweight or underweight) part and a green light indicates a good part. Good parts and bad parts are sorted into different chutes. The general-purpose Success robots feature 3 axes of servo-driven motion, plus the performance and reliability Sepro robots known for, and are ideal for simple pick-and-place applications. A third robot – a Model 5X-25 – is demonstrating the speed and precision of 5-axis servo operation in a deflashing demonstration. The robot grips a part and rotates it so that its edge passes by a flaming station. The Sepro 3-axis Cartesian platform, plus a 2-axis servo wrist and advanced Visual 3 control allows the robot to manipulate parts through complex paths, making it ideal for this kind of critical application.
All Sepro robots are operated using the same easy-to-use control platform, which was developed by Sepro especially for injection-molding applications. The 5-axis robots benefit from the application of the Visual 3 robot control, Sepro’s newest, fastest and most powerful control. Visual 2 controls are standard on more advanced 3-axis robots, while the basic Touch 2 control is standard on Strong and Success universal robots. All controls have the same user interface with large, easy-to-read and -navigate 10-inch touch-sensitive screen that makes operation simple and intuitive. A joystick allows operators to actually steer the robot to fine-tune its movements.