Fakuma exhibit: Two-component process combines LSR and thermoplastic

An ALLROUNDER MORE 2000 in the Comfort performance variant and with two electric injection units will produce a two-component multifunctional box made of thermoplastic and self-adhesive liquid silicone. The two components are injected directly via a cold or hot runner system, resulting in waste-free production. The associated LSR dosing unit is integrated via OPC UA and the Euromap interface 82.3 into the GESTICA controller. The cycle time is around 60 seconds. First to be produced is the PBT pre-moulded part, which is then converted in the 1+1-cavity mould so that the LSR component can finally be injected. The complex 3D contour of the component and precise positioning of the pre-moulded part in the second mould station place high demands on the gripper and robotic system. The 164-gram box is finally removed by a MULTILIFT V 30 linear robotic system and placed on a conveyor belt.

As a fluorescent marker has been added to the thermoplastic component, the box – which is not identifiable by the end consumer – is clearly marked. Even a fraction is enough to clearly identify it with a laser detector through its characteristic fluorescence. This technology from Arburg's partner Polysecure allows products to be clearly traced, distinguished from counterfeits and, if necessary, sorted by material.