ENERGY MANAGEMENT | TECHNOLOGY
pump capacity, the maximum available heat output has increased. With the XL variant, this is optionally 16 or 32 kW. The smaller E-temp models achieve heat outputs of 8 or 16 kW. Even in the new size, E-temp retains the compact dimensions and fits beneath the clamping unit of many injection moulding machines. It therefore requires no additional footprint. The E-temp temperature control units that Engel has developed in collaboration with HB Therm play a central role in Engel’s integrated mould temperature control solution. With the iQ flow control software, the temperature control unit and CC300 injection moulding machine control merge into a single unit. The whole process is displayed on the injection moulding machine’s operating panel. The iQ flow control software regulates the volume flow rate and dynamically and automati- cally adjusts the temperature control process to match the respective process conditions. In order to achieve this, the software uses the measured values determined by the E-flomo electronic temperature control water manifold which is installed in the injection moulding machine. This results in constant temperature control conditions and significantly improved energy efficiency thanks to the automatic demand-based control of the pump RPM of the E-temp temperature control unit. The new iQ process observer monitors several
hundred parameters simultaneously. Engel says that to date, assistance systems have been used to optimise individual steps in the injection moulding process, such as injection and cooling. But the new iQ process observer goes several steps further, providing an overview of the entire process for the whole batch. This makes it possible to identify changes in the process at an early stage, allowing operators to determine their causes and find a solution more quickly. The iQ process observer continually analyses parameters across all four phases of the injection moulding process – plasti- cising, injection, cooling and demoulding. The results, split into the four phases, are immediately visible in an easy-to-understand overview on both the injection moulding machine’s CC300 control unit and the Engel E-connect customer portal. Arburg has introduced a number of smart assistant packages that are central to the company’s energy management strategies for its Allrounder machines. These include the new filling assistant, which was developed in conjunction with German company Simcon, which expands functionality to cover a larger tool and material spectrum. Due to the filling assistant, the Allrounder ‘knows’ the moulded part that it is producing, says Arburg. The
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simulation model created offline and the compo- nent geometry are directly read into the Gestica controller, and the filling level of the component is animated in 3D graphics in relation to the current screw position. On the Gestica screen, the machine operator is able to interactively compare the results of the simulation created offline with the filling behaviour of the last cycle. This results in benefits with regard to set-up time, safety and efficiency. Similarly, a plasticising assistant employing an
integrated memory chip controls plastification. The assistant uses the data of the chip to calculate parameters automatically, such as the utilisation of plastification and dwell times. This allows material processing to be evaluated and optimised quickly. On the other hand, the plasticising assistant writes data on the module and process history on the chip, such as operating hours or throughput. This creates the prerequisites for maintenance accord- ing to needs – the basis for predictive maintenance and improving troubleshooting during service. Performance-based lubrication has also been
introduced. Maintenance intervals are no longer simply defined on the basis of operating hours or by the number of cycles, but are calculated individually, depending on the forces, speeds, strokes, and times that have been set. Arburg is using performance-dependent lubrication for the servo axes of its Multilift robotic systems and for the toggle-type clamping units of electric and hybrid Allrounders. In addition, automatic central oil lubrication and the grease lubrication points, which are centrally located outside the panelling, ensure minimum maintenance requirements for the toggle-type clamping units. Because lubrication can take place during operation without interrupt- ing production, availability also increases. Sumitomo (SHI) Demag Plastics Machinery has launched an energy efficient all-electric multi-component machine. The company says that
June 2020 | INJECTION WORLD 51
Above: Performance- based lubrica- tion has been introduced by Arburg
IMAGE: ARBURG
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