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Drives meet labelling needs

A Lenze product story
Edited by the Engineeringtalk editorial team Oct 18, 2007

The complex motions of the composite can labeller together with high speeds require five axes of servo and two axes of inverters, all supplied by Lenze.

An innovation in rolled tubular containers has enabled C Perkin to win a valuable contract from Los Angeles for packaging tacos.

Its high-speed machinery is driven by inverter and servo drives from Lenze.

C Perkin specialises in cardboard tube forming machinery and has developed a finished can with both a paper base and a paper top.

The foil-lined ends are rolled into the end of the tube for load bearing strength and then heat-sealed.

The paper top is significantly lower in cost than plastic or metal caps and much more environmentally friendly.

A key element in the production is a machine called the composite can labeller (CCL), which applies labels to the tubes and cuts to the finished length.

A four mandrel turretting head is automatically loaded with lengths of tube, glued labels are applied and the tubes are cut to length.

The complex motions of the CCL together with high speeds require five axes of servo and two axes of inverters, all supplied by Lenze.

For the servo axes the Application version of the ECS drive was selected.

It has a powerful PLC built in, offering free programmability in the IEC 61131-3 compliant languages.

All the motion control in the drives was done using an on-board, cam software library which achieves easy definition of profile shapes through a configurator.

The panel for the CCL includes a low-cost laptop PC for remote monitoring with a Lenze Ethernet connection to all machines in the line.

High-speed motion control and automatic processes were required to meet the production target of 120 cans per minute.

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