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Fowler Products: Capping and inspection system

A high-speed inspection/rejection capping system rates more than 900 bottles/min.

A high-speed inspection/rejection capping system rates more than 900 bottles/min.
A high-speed inspection/rejection capping system rates more than 900 bottles/min.

Fowler Products, powered by Pro Mach Inc., has introduced its highest speed inspection/rejection system for capping applications. The system can cap and inspect more than 900 bottles/min. This failsafe inspection/rejection system is designed for pharmaceutical and personal care companies seeking verification that every cap is properly applied.

In Fowler’s approach to inspection/rejection, bottles failing inspection are shunted to a reject lane before they leave the capping machine. This ensures that the bottle identified as a reject is in fact the bottle that is rejected. Furthermore, Fowler’s unique design gently diverts a rejected bottle off to a reject lane so that the bottle remains upright and does not spill its contents, contaminating the packaging line.

The failsafe Fowler system rejects bottles for improper torque, missing cap, high cap, and/or cocked cap. The system also rejects bottles if the under-cap liners are missing. Every bottle must pass these quality checks before it is allowed to leave the machine.

Electronic torque control, machine vision, and various other sensor technologies are used in the inspection portion of the system. With failsafe logic, even the sensor hardware is monitored for proper functionality. Using failsafe logic, all bottles are tagged as “faulty” entering the machine, and each inspection criteria must be satisfied as “good” before the system will allow a bottle to be discharged from the machine to the next downstream operation.

The breakthrough in speed is the result of using state-of-the-art linear motors for high-velocity, precise motion actuation of the multi-finger rejection portion of the system. The linear motor actuators smoothly guide the bottle to the rejection lane without holding up or otherwise interfering with the bottle next in line.

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