TECHNOLOGY | HOT RUNNERS
contribution to this effort to develop and introduce digital watermarks into injection moulds, which will enable sorting systems to process a wide variety of plastics packaging more accurate- ly than before. “We are very proud to be a key player in the Digital Watermarks Initiative HolyGrail 2.0, which was initiated in the spring of 2020 by AIM – European Brands Associa- tion and the Alliance to End Plastic Waste,” said Arno Pfaff, Vice President, Business Development and Strategy, Molding Solutions.
Above: The MoldMIND III smart device was developed for all of the Barnes brands and third-party providers
“We have been active in this initiative since 2016 under the leadership of the Procter & Gamble Company and facilitated by the Ellen MacArthur Foundation.”
Barnes says customers in the automotive sector
Right: Husky has introduced the UltraShot Injection System
are also demanding more sustainable solutions. Hot runners company Synventive recently launched eGate Sync, a motion controller enabling the electrical movement of the valve gate. The new eGate Sync allows for a much faster plug-and-play installation on a hot runner, it says. Unlike hydraulic or pneumatic systems, eGate Sync improves the process, focusing on sustainability by leveraging electrical technology. This results in higher quality parts with greater efficiency and reliability. New from Priamus, the Barnes company involved in cavity pressure and temperature control, is FillControl. This balances inconsistencies in the moulding process automatically by reducing cavity-to-cavity variations. These auto-correc- tions are especially relevant when processing bio-based or recycled materials to control and balance viscosity variations. At the same time, this allows for implementations of regrind resins with a broader viscosity range. Barnes says a clear benefit to customers is the ability to minimise personal attendance for process adjustments, even with the complexity of high cavitation. The group is becoming more active in the area of smart machines. It says: “With an increased demand for production and machine informa- tion comes the need for industrial smart devices, which are the first step to capture operational data. With that, customers can make more informed decisions faster. Smart
40 INJECTION WORLD | November/December 2021
devices are the gateway to the information you need to take immediate action, improve productiv- ity, and start your journey for a digital transforma- tion.”
Barnes’ digital platform transmits data from the mould to a cloud infrastructure. It allows its users to dramatically reduce catastrophic events, optimise maintenance costs, and increase uptime and output. MoldMind III is the first smart device developed for all of the Barnes brands and third-party solutions. The group says MoldMind III will be a standard offering on all moulds starting from 1 January 2022. Not long after the end of the Fakuma show, Barnes opened its new Customer Technology Centre in Haslach, Germany, at the site of its Foboha business. All of the group’s businesses are represented at the centre which covers a variety of customer end markets including automotive, medical, packaging and electronics. The facility is equipped with an Engel Duo 2700 / 17060 injection moulding machine. Customers will have access to hot runner solutions through Synventive’s Dynamic Feed pressure control system and the Synflow pin control technology, moulding multiple parts of varying sizes in one cycle. The machine will also be equipped with a Gammaflux temperature controller and Priamus pressure sensors to demon- strate the process improvements offered through advanced controls technology. Husky Injection Molding Systems introduced
its UltraShot Injection System earlier this year, which it says delivers plastic in a way that increases part design flexibility, while reducing risk and improving part quality and speed of mould qualification. The system made its live debut at Fakuma 2021. The company says that key to the
UltraShot Injection Technology is that it produces pressure near the cavity with a precise, servo-controlled injection system. This provides control of cavity filling and balance for critical parts and challenging applications. Pressur- ising the resin near the cavities
reduces the influence of resin com- pressibility and shear, and thermal variations on balance and part quality. Eliminating these influences achieves balance and good part quality. Unlike conventional hot runners, balance and part quality do not degrade with higher cavitation tooling, says Husky. The discrete injection circuit design is scalable to 128 cavities, providing the
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IMAGE: MÄNNER
IMAGE: HUSKY
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