Seamer Target Setting
Regular seam checks only show the symptom and not the cause of leaking cans. Leaking cans not only cause product recall and lost revenue, but can damage consumer confidence in the product.
Even from our low-speed customers’ old breakdown logs, we estimate that for every £1 spent on target setting they could have saved over £170 in lost revenue during downtime alone.
By carrying out regular target sets as part of your PPM schedule, we can give you the confidence that a good commercial double seam is maintained, and you can pass these reports to existing and potential customers to show the quality of your processes. Additionally, target sets highlight other areas of potential machine failure so lead to preventative measures being taken.
when to target set:
As part of a regular maintenance or quality regime. The frequency would be determined by machine output and or running hours but normally a seamer requires a target set every three months. As part of our service contract offer, we will help you decide how often you need this work based on the utilisation of your can line.
After can diameter changes when the machine settings and parameters have changed significantly. There is normally no requirement to target set when the can height is changed i.e. 330ml to 500ml as the can end will remain the same and there would be no alterations to the tooling.
After machine overhauls or when servicing is carried out on components that directly affect the operation of the seaming process i.e. can lifter servicing or seaming lever or seaming shank refurbishment.
When tooling has been replaced due to wear or damage.
What is Involved in Target Setting
A set of filled cans are taken from the machine and a full seam tear down is carried out and results recorded. This determines whether there are machine areas and settings that require additional attention whilst carrying out the target set.
Where a tooling replacement or change is involved then the tooling chucks are planed to ensure that they are within tolerance in the horizontal plane.
Pin heights are checked and adjusted using micrometers and set against the pin height calculation being: open can height – (chuck lip depth + deflection).
Lifter base pressures checked and adjusted where necessary.
Infeed and discharge drop-off heights checked.
The can end feed system is checked and adjusted where necessary.
Gassing turret to make up point and main turret position is checked for synchronisation.
Condition of and settings of infeed and discharge guides checked.
Machine inspected for signs of oil or grease leaks.
Knock out pad and operation checked.
Seaming rolls and chucks checked for general condition and signs of wear and additionally lateral play.
Drive chains/belts condition checked and adjusted where necessary.
A full first operation check and adjustments to the tooling where necessary are carried out based on the results of the checks.
Once the first operation is set to specification then a full second operation check will be carried out and again adjustments made if necessary.
The seam check results are then recorded and a copy retained by ourselves and a copy issued to the customer along with a target set report. You can give these to your customers