Sensors ‘keep the lid on’ ketchup bottles
30 June 2022
Some of the most compelling examples of automation are in food packaging, where the extensive use of high-speed automation means that equipment performance and reliability are valued because line stoppages are both costly and time consuming.
Contrinex photoelectric fork and inductive sensors ‘keep the lid on’ and help get a bottle of ketchup to the customer’s table by ensuring that the ketchup is hermetically sealed and that the flip-top cap has been fitted.
Plastic bottles that have been filled with ketchup pass under a Contrinex inductive sensor positioned over the packaging line which confirms the presence of an aluminium-foil seal. Next, the fitment of a plastic flip-top cap is verified by a Contrinex photoelectric fork sensor before the bottle is released for labelling, packaging and despatch to customers.
The fork-sensor is switched between four operating modes according to the production batch, using IO-Link. Being a communication protocol, IO-Link feeds back information from the inductive and fork sensors, such as their preventative maintenance status, to the production line control system.
Read the full article in DPA's July issue
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