Best semi automatic feeder and strip feeder ???

[Mikael Bohman]

Many designs has been proposed, but which one is working without problems?

My first design did not work with the openCV.

I would like one that is semi-auto, where the head can do the feeding operation without electrical components in the feeder , and one design that I can place stips in, without taping strips to a board.

The parts for the feeder should be 3d printed or CNC milled.

[Cri S]

Can you supply some images from a strip , images from the same stripe
at different positions and of different strips, if you have
transparent and black too.

> --
> You received this message because you are subscribed to the Google Groups
> "OpenPnP" group.
> To unsubscribe from this group and stop receiving emails from it, send an
> email to openpnp+u...@googlegroups.com.
> To post to this group, send email to ope...@googlegroups.com.
> To view this discussion on the web visit
> https://groups.google.com/d/msgid/openpnp/65ec71fb-ed8f-41a9-a723-96b0207c6598%40googlegroups.com.
> For more options, visit https://groups.google.com/d/optout.
>

[Cri S]

Important, including empty pockets.

[Mike Menci]

hello Mikael, 

Than you might be looking for something like this - see pictures enclosed - 

PnP head (or lever near head) pushes the lever on feeder and opening for feeding opens on feeder for pick up 

Mike

[ma...@makr.zone]

you might be looking for something like this - see pictures enclosed

Wow! I looked for something like that. Lot's of questions, though, sorry :)

1. What is the brand?
2. Where to buy?
3. Does it really work (cover tape etc.)?
4. How many parts skipped at the beginning?
   
5. Do you actually use it with OpenPNP?
   

Thanks,

_Mark

[Marek T.]

Construction looks similiar to old Yamaha/Phhilips (csm60 machine) feeders that I use. To use with openpnp you need modify automatic feeder code to fire actuator after when the head is stopped at feeder position instead of today firing it on the way when head is moving from somewhere to feeder.

[M. Mencinger]

Correct Marek!  

On Thu, May 31, 2018 at 11:00 AM, Marek T. <marek.tw...@gmail.com> wrote:

Construction looks similiar to old Yamaha/Phhilips (csm60 machine) feeders that I use. To use with openpnp you need modify automatic feeder code to fire actuator after when the head is stopped at feeder position instead of today firing it on the way when head is moving from somewhere to feeder.

--
You received this message because you are subscribed to a topic in the Google Groups "OpenPnP" group.
To unsubscribe from this topic, visit https://groups.google.com/d/topic/openpnp/CmyPu97fa2I/unsubscribe.
To unsubscribe from this group and all its topics, send an email to openpnp+unsubscribe@googlegroups.com.

To post to this group, send email to ope...@googlegroups.com.

To view this discussion on the web visit https://groups.google.com/d/msgid/openpnp/03c9f692-6f11-4264-b6c3-929c559b2212%40googlegroups.com.

For more options, visit https://groups.google.com/d/optout.

--

M. Mencinger

“To invent, you need a good imagination and a pile of junk.” 
― Thomas A. Edison

 Perfection (in design) is achieved not when there is nothing more to add, but rather when there is nothing more to take away.
Antoine de Saint-Exupéry
**************************************************************************************************************

This e-mail may be confidential and it may also be legally privileged. If you are not the addressee you may not copy, forward, disclose or use any part of it. If you have received this message in error, please delete it and all copies from your system and notify the sender immediately by return e-mail. Internet communications cannot be guaranteed to be timely, secure, error or virus-free. The sender does not accept liability for any errors or omissions. 

 SAVE THE NATURE - SAVE PAPER - THINK BEFORE YOU PRINT!

[Marek T.]

I've put the code instructed by Cri to the Jason's wish list but it was not code making actual feeder code universal but changing it into new working form. So was not merged by him (despite he told that do this in some free time... Apparently there was not free time :-).) To be honest, I've never pressed on him to much with this as anyway need recompile openPNP with other files when new updates. No matter.

With this feeders type: one click is 4mm, two clicks - 8mm etc.

[Mike Menci]

I think that Z motors used in Open PnP forum here do not have sufficient Torque to trigger the spring on this feeder ...
I’m planing different aproach for feeding with no software or code needed...
mike

[Marek T.]

Probably you are right. There is really relatively strong torque required for these feeders.
I have pneumatic heads height controlling so have no problem with it, there is really quite high torque.

[Mikael Bohman]

What about this solution?  SMD Taxi @ 1:00

[Mike Menci]

Hello 

this is not so reliable - but it works see sketch enclosed

Mike

[Cri S]

It works without problems if you add a shutter. Otherwise the head is responsable to limit the release speed. Both system works.

[Marius Liebenberg]

I like these feeders very much. Do you any more info on the construction of these?

[ma...@makr.zone]

I think that Z motors used in Open PnP forum here do not have sufficient Torque to trigger the spring on this feeder ...
I’m planing different aproach for feeding with no software or code needed...
mike

Could it be done with a lever? The Liteplacer has a large Z range of 40mm+ (more if you go below table). It would not be fast, but you could probably multiply torque quite a bit. Also the lead screw Z drive is not that weak.

https://www.liteplacer.com/the-machine/assembly-instructions/gantry-step-8-finished-gantry-assembly/

Are these the right ones?

https://www.ebay.ch/itm/SMT-Feeder-8mm-CSM46-CSM60-PA269000-Philips-Yamaha-Assembleon/263557490863?hash=item3d5d4028af:g:W8AAAOSwGbharuXj

And is the black knob to be pressed? How far down?

Thanks,

_Mark

 

[Marek T.]

Hi Mark,

There is few different type of the feeders for these Philipses and the one you show is just one of them. 

You can buy them often very cheap. I have paid €3000 for 200 feeders together with machine :-).

Yes black knob is needed to be pressed, moreless 10-12mm.

In original solution this is pressed with pneumatic "presser" and it takes 0.5sec including lowering, vacuum building and rising the part. So the only feeder operation takes maybe some 100ms.

No idea how to measure the torque but it is really strong (there is few springs in this feeder). Lead screw for sure will do this but slow.

[Mike Menci]

Maruis, 

Try this web - you will find some photos and translate it with google to your language 

http://www.cnc-club.com/forum/viewtopic.php?f=34&t=3037&sid=8bc0babd3b2dbb6a98e12373dccba889&start=300

There are some Rusian speaking English guys in this forum they might help you out to find more...

A spring holding tape in sketch enclosed...

This is all I could find

Mike

[Marius Liebenberg]

Mike

Thanks a lot for the link. It helped a lot. I think I have the design now, It is very simple and looks like very effective. I will draw it up over the next couple of days and try it out once I sourced the spring material.

[Mike Menci]

Take apart an old measuring tape and use that spiral spring - flatten it and bend as needed !
https://www.google.si/search?safe=active&rlz=1CDGOYI_enID614ID615&hl=en-US&tbm=isch&q=spring+flat+in+measurement+meter&spell=1&sa=X&ved=0ahUKEwil8ofJk7fbAhWJalAKHdpPDvcQBQhKKAA&biw=375&bih=591&dpr=3#imgrc=1pexCi8KJLttLM:

Mike

[TheCunningFellow]

That is similar to the Alex 3D printed ones?

https://www.youtube.com/watch?v=IDiFrP3rNAg&t=10s

[Marius Liebenberg]

I did the design and sent away for laser cutting. I will be using little springs in place of the rubber bands.