Automatic Reel Loading ARL / ARL-LT / ARL Gravure
ARL
Rigorous demands on reliability and the safety of personnel have led increasingly to the automation of the loading process. The concept of a motordriven transfer stage with a lifting device provides a solution for loading reelstands.
Process
The loading cycle commences with the removal of the cores. The core basket is run between the two reelstand arms. A signal activates the opening of the chucks and the core is intercepted by the core basket. The core basket returns to its park position and the new, fully prepared roll is moved from the wait position on to the transfer stage. The new roll is positioned centrally or in line with the running web. The automatic loading with transfer stage is a simplified variant which requires a synchronised movement of transfer stage and reelstand arm.
ARL-LT
Rigorous demands on reliability and the safety of personnel have led increasingly to the automation of the loading process. The concept of a motor-driven transfer stage with a lifting device provides a solution for loading all kinds of reelstands, also the removal of full, part-used and buttend rolls.
Process
The loading cycle commences with the removal of the cores. The core basket is run between the two reelstand arms. A signal activates the opening of the chucks and the core is intercepted by the core basket. The core basket returns to its park position and the new, fully prepared roll is moved from the wait position on to the transfer stage. The new roll is positioned centrally or in line with the running web. The transfer stage then moves the roll between the reelstand arms and lifts it to the height of the chucks. The core aperture is scanned by 2 light barriers. After centering the roll is displaced to the axis of the chucks and automatically loaded.
ARL Gravure
Modern rotogravure presses with rolls weighing up to 7 tons require extremely accurate and stable transfer stage with integrated lifting device.
The new, fully prepared roll arrives at the wait position directly in front of the reelstand. The automatic cycle for the loading is initiated by the splicing action. In a first step the core or past-used roll is taken directly from the reelstand arm by means of a Monorail core clamp. The new roll is positioned in the middle of the transfer stage. Then the platform travels to the pre-centering axis and lifts the roll. A photocell in the pre-centering device stops the lifting. Now the centering arm function commences. The centering cones are synchronously inserted into the core. Height deviations are corrected by the fine height adjustment. The fine height adjustment also permits the equalising of height differences left and right. The integrated slewing rail permits accurate lateral alignment of the roll. Once the roll is aligned, the position is blocked, the transfer stage runs to the load position and transfers the roll to the reelstand.
