Product category:
Printing Presses Ancillary Equipment
News Release from: APS Engineering | Subject: Web tensioning control
Edited by the Printingtalk Editorial
Team on 17 February 2003
Cutting waste with real-time
registration
A second digital system for real-time registration and shaftless web tensioning control has been installed and commissioned by APS Engineering on a 14-statio
A second digital system for real-time registration and shaftless web tensioning control has been installed and commissioned by APS Engineering on a 14-station off-line print finishing system for direct-mail specialist The Lettershop Group of Leeds The off-line finishing line adds individual text and names and addressing to previously printed jobs in a high-speed operation
This article was originally published on Printingtalk on 26 Oct 2005 at 8.00am (UK)
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The £2 million line also provides folding, slitting, two-station (mobile) glueing and trimming for complex multi-part mailers.
The process is more difficult than on-line, because the system has to cope with continuous registration errors - and the print quantities are much larger.
APS Engineering engineered a system that enables operators to restore registration and web tension in real time, either locally via individual manual stations, or remotely via a centralised touchscreen controller.
Equipped with 32-bit RISC processors and an on-board single axis position controller - which can be synchronised to speed or encoder tasks, the drive modules eliminate the requirement for costly PLCs or other standalone controllers.
The communicate with tension controllers and registration controllers via a fast RS232 duplex network.
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