TECHNOLOGY | PACKAGING
economy and all of these related aspects and activities are grouped together in the Arburg GreenWorld programme.” Arburg highlights a number of significant trends driving new developments in packaging for injection moulding at present. “Important topics are the minimisation of the carbon dioxide foot- print of machines, processing of recyclates and bio- plastics, while maintaining high quality, improve- ments in production efficiency and use of innovative processes, as well as consultancy advice on all aspects of applications technology, resources and energy efficiency,” says Stern. “In order to be able to improve the processing behaviour of recyclates, a consistent high quality and quantity of standardised material is required. For bioplastics and recyclates, the challenges lie in incomplete material data specific to processing, fluctuating recyclate qualities and smaller processing win- dows. These issues must be solved jointly by the material, mould and machine manufacturers and the processors. For this purpose, Arburg cooper- ates with the Institute of Plastics and Circular Economy (IKK) at the Leibniz University Hanover, Germany, for example.” Arburg has also recently collaborated with
Below: The Allrounder 1020 H in packaging version features a clamping force of 6,000 kN and a new size 7000 injection unit
Foboha in new cube technology – a reverse cube system which currently can only be used with Arburg’s Allrounder Cube injection moulding machines. The cube halves rotate by 90 degrees against each other. While injection takes place on one side of the cube, the components on the other three sides cool down to such an extent that they can finally be assembled directly in the mould. The automated process increases quality, accelerates cycle times by up to 40% compared to two separate injection moulding machines plus assembly process, and offers significant cost and space savings. The hybrid Allrounder 1020 H Packaging version was also introduced at K2019. The company says that the largest injection moulding machine designed specifically for packaging technology has a clamping force of 6,000 kN and is equipped with the new size 7000 injection unit. It is designed for use with moulds with numerous cavities and for
Above: Arburg has collaborated with Foboha in new cube technology – a reverse cube system which currently can only be used with Arburg’s Allrounder Cube injection moulding machines
large packaging containers with a volume of up to 30 litres. At K2019, Arburg demonstrated its capabilities by producing thin-walled round cups in an 8+8-cavity stack mould. The machine com- bined the electrical speed and precision of the clamping unit with the hydraulic power of the injec- tion unit. The clamp-design in the Allrounder 1020 H
IMAGE: ARBURG 18 INJECTION WORLD | July/August 2020
Packaging version with Gestica control system has a distance between tie bars of 1,020 mm. The new size 7000 injection unit offers a maximum shot weight of around 4,200 g (PS) and is available for the Allrounder 1020 H Packaging, as well as for the Allrounder 1120 H. It is ready for digitalisation, equipped as standard with Arburg’s four assistance packages –
4.set-up,
4.start-stop,
4.production and
4.monitoring, which get the injection moulding process up and running quickly and reliably. They provide the operator with comprehensive digital support, enabling work faster and receiving increased help from the machine. All Allrounders will in future feature basic connectivity, equipped with an Industrial Internet of Things (IIoT) gateway and can be easily networked via standard inter- faces with higher-level systems. At Arburg’s K2019 stand new PP material was processed in combination with 30% single-type PP recyclate to produce thin-walled cups of consistently high quality. Austrian cooperation partner Erema provided the PP recyclate and recycled some of the PP cups produced at the show. Using an 8+8-cavity stack mould from Stackteck, Canada, 16 round cups
www.injectionworld.com
IMAGE: ARBURG
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