Side guides / screw downs
Side guides are used to centre the metal strips upstream of the roll stands. In some cases, mechanical cam switches and/or absolute encoders are still used for position detection and control. Attachment to the available shaft end of the drive is a widespread solution. To improve control accuracy and as a consequence the quality of the material the customer desires a directly mounted, compact solution without downstream transfer box gearing (gear backlash). The same demands apply to adjusting the rolls for thickness control purposes.
The advantage of the modular system U-ONE® from Johannes Hübner Giessen is that just the universal basic device is mounted to the side-guide gearbox, while the functional modules are housed externally on the switchboard. A single fibre-optic cable is used to achieve the EMC-compliant connection, a solution that offers considerable savings with regard to cabling time and costs. The system is programmed via a central USB interface. The system is easily extended thanks to the series (side-by-side) plug-in function modules in conjunction with the low-cost of spare parts.