HYGIENIC DESIGN .
STAINLESS STEEL COMPONENTS WITH SIGNIFICANT ADDED VALUE :
MAXIMUM HYGIENE .
THE BIG GREEN BOOK
In a hygiene-sensitive manufacturing environment stainless steel components are true all-rounders : easy cleaning , no adhesion of dirt , germs or detergents , permanent cleanliness . They are also corrosion-resistant , durable , temperatureresistant , low-maintenance , hygienic and economical .
Find these products in our full range with more than 70,000 parts in THE BIG GREEN BOOK 2022 info @ norelem . co . uk ∙ www . norelem . co . uk
Aerosol Can Inspection
Identify Direct was asked by a major aerosol manufacturer to develop an on-line system to visually inspect laser-etched engraving on the bottom of aerosol cans .
ISSUES :
• The bottom of the pressurised can is concave and of shiny aluminium .
• The writing and DataMatrix are laseretched rather than printed meaning very low contrast , making reading difficult .
• Inspection had to be 100 %.
• The writing was in an annulus around the base of the can , not straight across .
• The cans are moving along a production line and vary in position across the track .
SOLUTIONS :
• We successfully developed an in-house ‘ flat dome ’ which , together with a classic dome and a ring light , gave a consistently good image on all the cans .
• We developed software based on a ‘ polar unwrap ’ tool , using the central DataMatrix mark as a ‘ locator ’ to position the Polar Unwrap Region Of Interest correctly on each can , using a DALSA camera to capture the images .
The result is an effective on-line system that can read every can , check the quality and automatically reject bad cans or stop the line for cans that could not be reliably read .
Contact sales @ identifydirect . com for more information www . identifydirect . com
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