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Modular automation for ink jet coding

Edited by the Engineeringtalk editorial team Nov 22, 2000

Not all coding applications can be met by an ink jet printer in isolation. More often than not, an automation system is required.

Not all coding applications can be met by an ink jet printer in isolation.

More often than not, an automation system is required to move the printhead(s) vertically and/or horizontally so that the code can be printed onto a particular face of the product or indeed onto a row of products.

Naturally, several of the ink jet printer manufacturers are able to provide this additional automation but not necessarily at the speed that many companies require; these systems are largely built to order.

An alternative which is proving increasingly popular is provided by R A Rodriguez.

It has taken the elements of its established Werner linear motion range to provide a dedicated programme of off-the-shelf modules.

These can be quickly assembled to create an automation system to control the movement of the printhead and its coding operation.

It can be provided as a complete installation or as a kit of parts for the customer to assemble for R A Rodriguez to commission.

The Werner system can be configured for a range of application requirements.

These include horizontal axis systems for location over or under a conveyor - for printing downwards or upwards respectively - vertical axis systems for height variation, two axis horizontal printing for palletising applications and two axis vertical printing.

Other format options are printing on four sides of a box and around a radius.

This Werner stepper motor-driven automation package is far better suited to inkjet coding applications than traditional pneumatic systems.

Constant speed and smooth movement are key benefits resulting in minimal ink disturbance.

This consistency throughout the stroke also ensures a higher order of positioning accuracy and print quality, at axis speeds of up to 3m/sec.

By comparison, friction is inherent in a pneumatic system which leads to non-uniform movement and unnecessary wear and tear.

As the Werner system is easily programmable via keypad, controlled acceleration and deceleration can be introduced, again ensuring better coding performance and promoting long service life.

The ability to store a directory of programmes allows the system to be speedily set-up for the coding requirements of other product types and sizes; an LCD display provides quick access to system diagnostics.

Equally suited to interfacing with new or existing ink jet printers, the Werner system can be created to meet the specific needs of a range of industrial sectors.

For example, stainless steel elements can be included for food and beverage applications.

Classes of clean room operation can also be met for sensitive pharmaceutical production and electronic assembly.

In addition to the sectors already mentioned, the automotive industry, furniture and steel production are prime markets for this intelligent and cost effective system.