Sensor needed to fit application.
Sensor needed to fit application.
(OP)
I need a sensor that can detect if a bag filled with commodity(fruit) is sealed.
The bags will be moving at a rate of about 100 per minute on a conveyor.
Does anyone have any suggestions?
Thanks
The bags will be moving at a rate of about 100 per minute on a conveyor.
Does anyone have any suggestions?
Thanks





RE: Sensor needed to fit application.
htt
RE: Sensor needed to fit application.
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RE: Sensor needed to fit application.
Jraef you hit the nail on the head with the "Does it hold air pressure".
If the bag has a hole in it the product would be damaged even if seal is ok.
The bag would be similar to a single serving bag of potato
chips.
The seal would have a different contrast.
RE: Sensor needed to fit application.
You might also consider a simple limit switch that presses on the bag as it goes down a conveyor and if the bag has a hole, the pressure from the switch deflates it a little and triggers a reject. You could do it with a hinged plate that the bags pass under and a roller limit switch behind it. If you want analog sensing of that, there are analog output inductive sensors that could give you a relative plate deflection that you could track in the PLC from a 0-10VDC signal.
"If I had eight hours to chop down a tree, I'd spend six sharpening my axe." -- Abraham Lincoln
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RE: Sensor needed to fit application.
Mark Hutton
RE: Sensor needed to fit application.
I do need to add a sensor to count the bags(only good product). I did not mention that in my original post.
If I can eliminate a sensor to test for bad bag that makes my life easier. I love the idea of the bad package dropping in a open channel.
If this is not acceptable to the powers that be, I like the idea of the hinge-limit switch combination.
This site amazes me the willingness of professionals to offer guidance to people they don't know in need of assistance.
Thanks again.
RE: Sensor needed to fit application.
We need a 12 step program I guess.
"If I had eight hours to chop down a tree, I'd spend six sharpening my axe." -- Abraham Lincoln
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RE: Sensor needed to fit application.
I would be concerned that the clever chute method might crunch some chips at the required speed.
A non-contact method would be a pinpoint proximity sensor that looks at a location that has an air jet impinging on it. Correct bags would not depress as far as leaky bags.
Keith Cress
kcress - http://www.flaminsystems.com