The Initial Situation
The filled and sealed packages run on a conveyor belt to the packaging point outside the clean room. Here, the different packages (bottle top, folding boxes or pans) are marked on 2 parts by the ink jet printer. If the products run too close to each other on the conveyor belt, it can happen that the product sensor identifies only one package and sends only one printing signal to the ink jet. A visual inspection by an employee remains uncertain.
A solution for quality and security
Inkjet printer/software/camera are already well-matched as a standard-combination: alphaJET + code-M camera + VeriSens
An on-site trial installation on the production line delivered positive results, since the technical team at Henry Lamotte Oils had already intuitively prepared the test setup in the best possible way.
The separation of the packages through differences in speed is not a problem for the labelling.
Camera test with added benefits
Now, the software code-M checks two points: one that multiple packages are not against each other and second that the printing text is fully available. In the next step, camera and code-M will also match the text content.
The average speed of the belt of 12 - 15 m/min. is no challenge for alphaJET for the product identification.
Camera is inspected with an ideal distance of 135 mm, measured from the centre of the print head till the centre of the camera lens.