QJet Systems QJ0265 Application systems
The QJet-System consist of a bag press (PUR-conveying), a piston pump melt unit (EVA conveying) and a book binding slot nozzle for the hot melt application. The PUR adhesive used for gluing the spine is fused gently in a bag press and fed through the heated hose of the nozzle. The gear pump mounted to the nozzle transports exactly the adhesive quantity calculated by the programmable logic controller (PLC). The starting and end point of the adhesive application for gluing the back as well as the starting and end point for gluing the edges at the nozzles is calculated to the millimetre by a route control. The two edges can be glued with a different adhesive (hot-melt adhesive), since the two systems operate independent of each other.

QJet Application system
The QJet-System consist of a drum melter (PUR-conveying), a gear pump melt unit (EVA conveying) and a book binding slot nozzle for the hot melt application. The gear pump delivers exactly the amount of adhesive which has been calculated by the Programmable Logic Controller (PLC). The start and end point of the adhesive application for the spine gluing is also the start and end point for the side gluing at the nozzles and is calculated by the linear path control with millimetre accuracy. Both side gluings can be made with another adhesive (pressure sensitive hot melt adhesive), since both systems are separated from each other.


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