Blow-Molding Control connects to PC.
Press Release Summary:
MACO 6500RS offers Windows® 2000 Pro Ethernet capabilities, 3 modes of closed-loop shoot/fill, adaptive extruder speed control, digital on-demand heater amp scan, statistical process control, and security change function. PC/PLC arrangement permits dedicated sequencing and control of criteria such as temperature, extruder speed, and shot size while providing operator's station for data entry and back-up. Statistical items can be tailored to meet customer requirements.
Original Press Release:
Davis-Standard Introduces New Control System for Blow Molding
(Pawcatuck, Conn.)-A new Davis-Standard control system for blow molding combines operator-friendly, PC connectivity with multiple functions for optimal machine and parison control. Called the MACO 6500RS, the system is standard on all new blow molding machines and available for retrofit on older Davis-Standard equipment as well as non Davis-Standard brands. Standard features include Windows® 2000 Pro Ethernet capabilities, simplified wiring, three modes of closed loop shoot/fill, adaptive extruder speed control, digital on-demand heater amp scan, statistical process control (SPC) and a security change function. The competitively priced system is also available with custom options.
One of the primary advantages of the MACO 6500RS is its three modes of synchronous shoot/fill control. These include a synchronized parson drop via the lead head, synchronized parison drop via shoot time and manual individual head control. Using synchronized parison drop via the lead head, the head with the larger shot size is the leader while the corresponding head matches the lead head's push-out time. For shoot time synchronization, the operator can set a drop time in seconds whereby a microprocessor automatically adjusts the push out speed of each head according to the target setting. With manual head control, the operator can manually adjust the head push out speed. The system also features a "delay to shoot" function which allows the parison push-out on one head to be delayed for a specified period of time. This is beneficial when running two heads with a significant shot size differential.
The system's PC/PLC arrangement permits dedicated sequencing and
control of criteria such as temperature, extruder speed and shot size while providing an operator's station for data entry and back-up. Statistical items can be tailored to meet customer requirements and data trending can be viewed via the operator's station. The system uses a Windows Dynamic Data Exchange (DDE) format with networking options that permit direct interfacing with third party Windows-based SPC programs, interfacing with custom spreadsheets and user-defined database sizes. Trouble shooting is available via the operator's station by means of machine drawings, component manuals, a print screen utility and data trending. All information is kept secure via a security change function which enables the operator to set passwords and modify security features as required.
Davis-Standard offers a range of on-site training programs for customers integrating the new system. For more information, contact Mark Panaro at mpanaro@davis-standard.com.
