Electronics Forum | Tue Jun 10 15:47:18 EDT 2014 | hegemon
Possibly the components have been re-taped in that particular reel, with only electrical function in mind? Hard to see a nozzle causing a flip, and I am thinking if your feeders are vibrating bad enough to flip the components in the tape, that you
Electronics Forum | Wed Jun 11 11:40:12 EDT 2014 | rgduval
As has been mentioned, it's likely that the component is moving in the tape, and flipping over. It is not likely that the pick/place operation is causing this. What I haven't seen mentioned is that there is an acceptability criteria in IPC for inve
Electronics Forum | Wed Aug 03 10:01:39 EDT 2005 | GS
Hi Crishan, sorry, "pbm" is a short way to say problem. In the past ('89), we had same magnetic pbm also with metal nozlles on Dynaper MPS-2500. Some time, we found also chips received from supllier already magnetized. Solution was to put the r
Electronics Forum | Tue Aug 02 11:58:44 EDT 2005 | GS
Are the pick up nozzles metal made (ironmagnetic material)? Some time magnetic residual on metal nozzles can generate pbm like that when chips terminations have nickel and when SOt or similar packages have terminal A42 alloy made. Time ago got pbm l
Electronics Forum | Mon Aug 01 17:54:02 EDT 2005 | Stefan
If you are using vib. feeders than the component may be flipped length wise by the following components. Components should be landing with the leads on the right side but upside down. If you are using tape feeders the component may be flipped sideway
Electronics Forum | Tue Aug 02 11:17:27 EDT 2005 | Stefan
Tape feeders usually have a fixed pick position regardless of the package size. Is the component body off center in the tape pocket? I hope you can enter an offset in the feeder set up file. Also, perforation holes can deform, if the reel is too hea
Electronics Forum | Mon Aug 01 18:33:21 EDT 2005 | crishan
Hi All, We are not using a Vib. bowl feeder, or stick feeder, these parts are on a reel. The pick & place machine we are using is a Panasonic brand YV100X, its a single head with 8 nozzles. What we are finding is that the component package size is
Electronics Forum | Tue Aug 02 22:44:42 EDT 2005 | crishan
Thanks for the comments everyone. I did not think of checking the nozzles material, I will check this out. GS, What is PBM, is this some sort of ironiser. Also to clarify, we believe the that the pocket size for the component is too big allowing th
Electronics Forum | Thu Jul 28 08:02:09 EDT 2005 | stepheniii
Check the pick postion in the feeder. If the nozzle is picking at the edge of the component, it could flip it. BTW what kind of machine are you using? Stephen Olan
Electronics Forum | Tue Aug 02 04:52:16 EDT 2005 | aj
Crishan, You must be seeing an incredible amount of Attrition on this component if this is the case. You should most definitely be able to put in a Pick-up offset either at the machine or in the part data. aj
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