Automated mill setup system

T & H Lemont, USA, is set to introduce a new mill setup automation system, available for retrofitting of any existing mill. The system will use patented absolute encoder technology to achieve repeatable, highly accurate setups.

A colour touch screen interface is used to select the mill setup from a menu of product specifications, based on previously stored setups. The operator enters an ID specific to the pipe or tube size. The screen shows nominal rim gaps in addition to actual rim gaps as entered from previous production data for that tubing size. The stands will automatically adjust to those locations at the touch of the screen, with each stand being represented on the touch-screen.

The operator can make minor adjustments, if required, from the touch-screen in 0.001" increments. Once the best setup is achieved, the data can be stored as the new product specification. The system is capable of storing 100+ unique mill setups.

The absolute encoders retain position information with �power off�, and never require a �zero-out� procedure. For example, if an adjustment is made manually while the system is shut down, at power on, the system will recognise the new position. In place of expensive servo motor drives, the system features standard AC vector drives to replace manual adjustment of the driven stands.

The system includes as standard an ethernet interface and web server for optional data acquisition. Benefits of the system include faster set-up, and reduced material waste due to setup errors during start-up. A complete mill adjustment can be accomplished automatically without the use of hand tools. Once one section of the mill has been retrofitted, the scalable system can be expanded at low incremental costs.

PUBLISHED: 06 Nov 08