Devices stick to Nozzle

Devices stick to Nozzle

Symptoms

When the nozzle goes down to place a device into a socket or other location, the device remains on the nozzle.

As the nozzle returns to the Z home position, the device will then fall out of the nozzle.

This issue can occur when changing jobs from large devices, which rely on gravity to assist them coming off the nozzle and small devices which need to be blown out of the nozzle.

On occasion, this can happen quickly and look like a placement issue.

Checks

  1. Check the main air input regulator, it should be in the region of 80psi.
  2. Check the puff off the regulator, located behind the air regulator panel on the back of the system.
  3. Operate the I/O settings for vacuum and switch it on and off, with your finger over the nozzle.  Can you feel the vacuum drop off quickly when switched of, or is a slow release of pressure?  If it is slow, then there is insufficient or no puff off.
  4. Remove the puff offline to the MAC Valve, this is a thin clear pip on the head assembly.  Switch on the vacuum, can you feel air blowing out of this pipe?  
    If yes, then puff off air is present.  Replace this airline and move to step 5
    if no, there could be a leak or a kink in the pip in the echain.  Check the output from the puff off the regulator.
  5. Remove the thin clear pipe from the MAC Valve, which has the T Piece and connects to the blue inline filter (if fitted!!).  Switch the vacuum on and off, can you feel the puff off?  
    If not, then the MAC Valve is faulty, check and replace.
    If yes, then replace the pipe and move to step 6.
  6. Remove the clear pipe which attaches to the Z Spline.  Switch Vacuum on and off, can you feel it on the pipe?
    If no, then the blue inline filter may be blocked, try removing it and test again.
    If yes, then there could be a leak on the spline, check and adjust.
    I
    • Related Articles

    • BPM APS Nozzle Chart

    • Losing Devices on 3X Laser

      Are you experiencing problems, where programmed devices are being dropped inside the laser marker on a 3X system or BPWin, is reporting that no device was found on one of the laser nozzle positions? If so, here are some suggestions to check and ...
    • Camera to Nozzle Coplanar Alignment

      Summary  Step-by-step guide on how to check and adjust the Camera to Nozzle Coplanar Alignment on 3x00 and 4x00 APS Details For the BPM Microsystems handlers to correctly and accurately measure and align devices for accurate placement, the nozzle ...
    • Nozzle Runout

      This test should be used to ensure that the Pick-and-Place nozzle is installed properly and that the CyberOptics Laser Align Camera will accurately measure a device during placement. A large runout can cause the CyberOptics Laser Align Camera to ...
    • Why are devices being placed at an angle when using an Automated Programming System(APS)?

      Summary Procedure to evaluate and troubleshoot why devices are placed at an angle. Details The angular placement can be any angle, 5 degree , 30 degree, 45 degree, 90 degree, etc. This angular placement can be seen in the sockets, tray, laser nozzles ...