Home > SICK’s ML20 markless sensors offer more flexibility and design freedom in packaging

SICK’s ML20 markless sensors offer more flexibility and design freedom in packaging

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The ML20 markless sensors from SICK deliver greater flexibility and design freedom in packaging applications.
SICK’s ML20 markless sensors are used as print mark sensors, eliminating any requirement for optical marking on the package. The ML20 offers advantages such as reduced set-up time while changing labels and formats as well as lower waste from avoiding unnecessary use of material.
The ML20 employs a novel method for contrast pattern detection, involving teaching-in a pattern sequence to the sensor. The pattern is detected during processing at a scanning speed of up to 7 m/s, resulting in the output of a switching signal.
Even in the case of complex designs, tolerances in the track course of the continuous material, and high machine speeds, the ML20 delivers convincing performance due to reproducibility of up to 0.6mm and extremely precise and stable detection of nearly any pattern.
Opening up new possibilities for packaging processes, the ML20 markless sensors help designers eliminate the need to integrate any optically distracting markings while designing packages and labels. Design engineers also appreciate the sensor’s high degree of ruggedness as well as ease of integration and commissioning.
For instance, the patterns to be recognised can be optionally taught-in, saved and retrieved using the sensor’s operating panel, the control cable or Ethernet. The economic efficiency of the ML20 can be observed from the stable and process-tolerant detection of even complex image patterns ensuring high availability and minimised downtimes. Set-up costs are also kept low with shorter set-up times when changing formats.
SICK’s ML20 markless sensors avoid unnecessary cutting loss and waste when changing label or film rolls since pattern detection is active immediately, allowing the material to be used soon after the beginning of the roll.
Additional savings are also enabled in various packaging procedures such as bottle labelling where it is possible to save material that used to be dedicated exclusively to the mark.

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