10/14/2010

www.gupta-verlag.de/thermoplastic-elastomers

Arburg: World premiere for new Selogica features and large hybrid machine

Selogica AssistantBy creating a special, separate area on the exhibition stand, Arburg aims to underline the international pioneering position of its Selogica control system philosophy, which now enables not just machine sequences, but also entire production systems, the associated peripherals and six-axis robotic systems to be programmed and centrally controlled.As an interface between man and machine, the Selogica Assistant now offers menu-guided, supervised set-up, or "teaching", functions for the entire mould sequence. Machine operators are actively supported during set-up and are literally "led by the hand": It takes just five logical steps to create an entire cycle sequence.New Allrounder 920 HFollowing the addition of the large hydraulic Allrounders 920 S and Golden Edition, Arburg is now following up with a hybrid machine. The servo-electric toggle clamping unit has a clamping force of 5,000 kN. The exhibit is combined with a size 4600 hydraulic injection unit and adaptive hydraulic accumulator technology. The large Hidrive machine will demonstrate a technical application from the packaging sector with sophisticated mould features, such as collapsing cores and multiple slide demoulding. Projects and applicationsIn total the company will have ten exhibits, including numerous complex production cells.On a vertical Allrounder 375 V and a Kuka six-axis robotic system with Selogica user interface Arburg will demonstrate a fully-automatic encapsulation of cables.  The injection moulder can programme the robotic sequences himself, set-up and training efforts are greatly reduced and cycle times are effectively shortened. The other advantage of this application is that there is no need for the manual preparation and insertion of the cables. As a flexible component, the cable is inserted into several cavities at freely-selectable positions. The length of the cable loops can be determined without limits.Sophisticated assembly injection mouldingThe application technology highlight will be, according to Arburg, the production of a rotation angle encoder as three-component part with inserted magnetic sensors on an Allrounder 370 S with a clamping force of 700 and three size 70, 70 and 30 injection units. The part-design was developed by Oechsler in cooperation with the institute of polmer technology of the University of Erlangen. The injection mould, designed and built by Oechsler, demonstrates assembly injection moulding in action. A Multilift V robotic system with a longitudinal configuration is used to feed the magnetic sensors into the mould, remove the parts and perform an integral function check. The magnetisation of the injection moulded magnet in the mould is another very interesting technical feature of this application.Paternoster for high qualityTwo large two-component machines are used to demonstrate some special mould-related features. An electric Allrounder 720 A with a clamping force of 3,200 kN and size 800 and 290 injection units is fitted with a twelve-cavity mould from Zahoransky. This is employed in the production of the cores and handles for toothbrushes using so-called SCPS, or paternoster technology. The mould inserts are rolled through the mould vertically. The benefits here are the absolutely central application of force, which has a positive effect on the quality of the parts and the cycle time and the compact mould design achieved using this technology.

www.gupta-verlag.de/thermoplastic-elastomers