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The case of the crooked cartons
Tommy called me with a problem.
“Our cartoning machine won’t stay in adjustment,” he confided. “Some days it is so bad that I have to keep a mechanic babysitting it. I need your help ASAP-get off your duff and get here!”
I moved quickly and soon had eyes on the machine. Tommy and I watched for just a few minutes. Sure enough, it jammed. It appeared that the carrier pockets had closed up slightly. We watched for a few minutes more and they went out the other way, opening up and causing a different type of jam.
I took a random sampling of carton blanks from the infeed and stacked them one on top of the other. The problem was obvious.
“Fiddlesticks on cartoners not staying adjusted” I roared over the plant noise.
I showed him the stack: “Here’s your problem. You are getting variation in the width of the carton blank. If you look at the manufacturer’s joint, you will see that it not only varies, it is often not square. No amount of cartoner adjustment will compensate for variable cartons.”
Tommy’s plant brought cartons in as flats and folded and glued them in-plant. The folder/gluer was worn with lots of play. It’s a problem I have seen before. The line may get maintenance attention but at the expense of ancillary equipment.
“Rebuild the folder/gluer so that it runs consistently and your cartoner problems will go away.” And that was my final answer.
Quality without maintenance is not possible.