Open house report | news
system, located at Hengst’s plant at Nordwalde in Ger- many, was described in detail on page 18 of the June edition of Injection World magazine. The award for innovative
process integration went to German garden products group Gardena for a system for production of two-compo- nent hose connectors that has been in operation at the group’s plant at Gerstetten since the beginning of this year. Built around a 400-tonne Engel Victory Combi machine equipped with an Easix multi-axis robot, the 16-cavity system runs on a 16s cycle. The short cycle time is
achieved through the use of a rotary core system. After the first set of 16 thermoplastics preforms have been moulded the core is rotated to position them for a cooling cycle. The core is then rotated again for the third cycle, where the soft TPE component is overmould- ed. A fourth rotation of the core moves the finished parts to a demoulding station. Each set of cavities is
two fully-assembled systems every 45s or so. The four multi-axis robots
Hengst’s production
system for diesel engine oil modules won an HL Award for effective mould space utilisation
arranged in a linear fashion vertically in the mould, which places high demands on the clamping system in terms of alignment to ensure no variation in thickness between the top and bottom cavities. Engel says the fact that the system has produced no quality-related rejects since start-up is testimony to the effectiveness of the platen force distribution system employed in the Victory machine design.
Winner of the economical
automation category was Austrian automotive supplier Schneegans Freudenberg Silicon, which is using a 400 tonne Victory machine equipped with four integrated multi-axis robots at its plant at Losenstein to manufacture oil measure- ment modules using projectile injection technology (PIT). The company produces more than 3m modules a year using this highly automated manufactur- ing technology, which produces
share the tasks of inserting the projectiles that create the hollow core in the moulded tube, removing the moulded parts from the mould, detaching the overflow cavities that captured the displaced polymer, printing on the front of the funnels, fitting O-rings, assembling the oil sleeves and dipsticks, then performing the final leak testing and packag- ing of the finished modules. Engel says the tiebar-less
clamp allows the multi-axis robot supporting the injection moulding process to work close to the clamping unit and access the cavities without wasting time. Using a machine with tie bars would have required more complex removal processes and would have necessitated at least 600 tonnes of clamp capacity, the company said, and would have required more complex removal processes that would have extended the cycle time. ❙
www.engelglobal.com
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