Thread: Need some ideas
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28-01-2011 #1
The by-product of my new machining service is clean rubber, I can sell this on to a number of customers for a number of uses, but its going to be long strings ( its being turned off tyres ) its worth more granulated, I need to design and build a machine to chop it up into small chippings. Any ideas?
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28-01-2011 #2
How about a garden shredder that you use for branches and tree cuttings etc ?
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28-01-2011 #3
Garden shredders aren't really cut out for anything more than twigs!
As you'll know, the problem with rubber is blades need to be sharp, and tolerances kept tight.
I'm struggling to think of a method that doesn't involve large amounts of horsepower or pressure :-/
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28-01-2011 #4
interlocking wheels with notches seems to be the most widely used method of shreading anything from paper to hard drives... a really simple concept, probably a pain to impliment
as its rubber strands your chopping i would have thought you would need contact between your interlocking wheels to "sissor" the rubber so at a guess id say that means hardend wheels or maybe belleville washers/ springs to keep tension on the cutting surfaces
to get consistent sizes of grain you will need a way of returning the rubber into the hopper untill its small enough to drop through whatever size grate/mesh etc
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29-01-2011 #5
This is very hard, the scissor idea needs to be there, ive also got to be carefull that it doesnt rao itself up
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29-01-2011 #6
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29-01-2011 #7
Im trying too lol! The strips could be up to 5m long at a guess, all similar lengths, with a cross section of around 4mm. Should be up to 100kg per week maybe more
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29-01-2011 #8
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29-01-2011 #9
I was thinking along those lines too, it would however need some kind of constant presure to ffed it in though.
You making an offer phil ??
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29-01-2011 #10
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