[chbot] Walnut Conveyors

[Guy Hooker]

Hi Robin, I worked on Apple and Kiwifruit singulators a few decades ago.:
Below: a good description from Lynx fruit graders..    Essentially we used
uphill V shape conveyors.   They needed quite a bit of tuning but then
worked well for years, no matter what the fruit size was.   We were aiming
for about 40 apples per second in eight lanes.  It was quite exciting when
it failed.
Guy

*2. Singulator.*

*The singulator comprises “v” shaped rubber rollers on an incline to
achieve a high level of singulation (80% average) through the unique design
of the roller, and the rotation of the rollers which is controlled by the
Lynx operating system. This rotates the fruit as it moves up the incline
section in either the forward or reverse direction depending on the product
type and size.*

On Sat, May 2, 2015 at 11:00 PM, <chchrobotics-request at lists.linuxnut.co.nz>
wrote:

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>    1. Re: TCS3200 anyone? (Andy Gardner)
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> ----------------------------------------------------------------------
>
> Message: 1
> Date: Sat, 2 May 2015 20:37:23 +1200
> From: Andy Gardner <ceo at andygardner.com>
> To: Christchurch Robotics <chchrobotics at lists.linuxnut.co.nz>
> Subject: Re: [chbot] TCS3200 anyone?
> Message-ID: <DBE98A4E-B39C-4CA2-AC96-85EA6499687C at andygardner.com>
> Content-Type: text/plain; charset=us-ascii
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>
> Here you go, Robin...
>
> https://www.youtube.com/watch?v=mvtLk4i6TmY
>
>
> On 9/04/2015, at 10:09 PM, Robin Gilks wrote:
>
> >
> >>
> >> I'm picturing a narrow, segmented conveyor belt with a small walnut
> sized
> >> cup on each segment.
> >>
> >> The cups run past the detector, and then a bit further on a compressed
> air
> >> jet is triggered when a dud goes past, blowing it out of it's cup
> sideways
> >> off the conveyor belt into a catch tank. The good ones just drop off the
> >> end of the conveyor straight into the shipping container.
> >
> > I'm thinking more like a channel sorter but with only 1 or 2 channels
> > http://en.wikipedia.org/wiki/Optical_sorting#Channel_Sorters
> > provided I can get the angle such that the nuts aren't going too fast
> past
> > the detector.
> >
> > Rather than providing a compressor, I'm thinking more solenoid driven
> flap
> > that steers nuts to one of 2-3 destinations.
> >
> > Still the problem of getting a steady flow of nuts onto a conveyor or
> > channel shute without them bridging over the outlet of a hopper.
> >
> > I feel a cardboard model coming on...
> >
> > --
> > Robin Gilks
> >
> >
> >
> >
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> End of Chchrobotics Digest, Vol 92, Issue 1
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-- 
*Guy Hooker*
guy.hooker at gmail.com
Cell +64 21 427 258
Home +64 3 354 5552
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