Demag Plastics Group at Plastpol 2012

High performance model range El-Exis SP (Speed Performance)
The hybrid driven El-Exis SP convinced its users engaged in high speed production of thin-wall food packaging, drink container sealing devices, cartridges, plant pots and waste bins. In this machine range Sumitomo (SHI) Demag has focused its many years of experience in the packaging market and once again successfully broken into the demanding production of food and technical packaging components market with a rapid production machine. With El-Exis SP the users themselves can enter, without affecting process stability, the range limits for their packaging production. The machine concept thus opens up completely new areas of application for injection moulding which hitherto were reserved for thermoforming as a rapid and economical process. Even thin walled disposable containers can be produced economically with El-Exis SP using the injection moulding process.

Full-Cover-Labeling achieves complete surface cover
The hybrid driven high performance El-Exis SP product range proves at Plastpol 2012 its performance capabilities with a procedural innovation. Together with Marbach moulds & automation GmbH, Bad Urach, Demag Plastics Group SP. z.o.o. have on display on their Stand the production of thin-wall shells with so-called Full-Cover-Labeling.

The special feature of this new 'Inmould-Labeling' process is that the banderol label and the base label can be overlapped around a radius and thus a complete covering of the plastic surface is achieved with the label right up to the sealing edge. In this way, necessary barrier functions can be integrated successfully in the packaging using the label. For complete labelling Marbach has developed a procedure in which a so-called "Full Cover Label Placer“, places in the banderol and the base label are in a single stroke. Previously IML solutions required a fillet on the base of the container so that full surface covering with a label in the injection moulding process was not possible.

Machine, automation and control make the process highly efficient
The new 'Inmould-Labeling' development operates on a fast cycling machine El-Exis SP 200 (2000 kN).fitted with a double IML hot runner mould from Marbach. The compact manufacturing cell produces the 250g shells from PP (shot weight 14.2 g) in a cycle time of ca. 3 s. Also, the Marbach Full Cover Label Placer ensures highly efficient placing of banderols and and base labels in a lifter. The highly precise 'Werkzeugstopp-Position' of El-Exis SP ensures the exact positioning of the labels despite the high production speed.

Also, with this new exhibit the new control unit version NC5 plus brings its advantages to bear: In the context of the function activeEcon, for each individual shot for all machine movements a detailed energy usage analysis and optimisation step in carried out. By means of activeAdjust the machine dynamic across individual adjustable controller characteristics is fully maximised. With the extended active application Werkzeugschutz activeQ+ s, the valuable production mould is not only controlled and monitored on closing but also on opening.