Hangzhou NeoDen Technology Co.,Ltd.
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3.5.1.3 Formulate the measures to reduce/avoid big problem
The most easily appeared problem during work are placement wrong components and
placement misaligned. Supply below measures for ref.
①
It needs to check whether the components package is matched with related feeder. If not,
please correct them.
②
As to tape reel feeder, when ran out of one reel, operator must check whether newly changed
tape reel is correct or not.
③
After import the SMD file or edit chip list manually, please recheck each components No.,
nozzle rotation angle and placement position to make sure correct.
④
Operator must check the first finished PCB of each file. If any problem, please find
solutions such as revise program to solve it.
⑤
To check the placement position misaligned or not, component loss problem in regular work.
Find reason in time and solve it.
⑥
Set pre-welding detection station (manual or AOI)
In sum, P&P machine's running speed and placement accuracy still has limit. Peoples work is
important to run machine on its proper role. So, it’s necessary to comply with effective
measures to keep machine normal work, its placement quality and efficiency.
3.5.2 Maintenance
Arrange regular inspection and maintenance system.
3.5.2.1 Daily Inspection
Items
Items check
before
power on
①
Temperature& Moisture: Temperature 20℃
～
26℃, humidity
45~70%
②
Indoor environment: Air clean without aggregate air.
③
No clutters within the placement area and keep rails clean.
④
No spots on cameras and keep lens clean.
⑤
No obstacles around the head nozzles
⑥
Checking if nozzles are dirty, distorted; If so, please clean or
change the nozzle.
⑦
Checking if feeders are correctly installed in stacks and confirm
no clutters on stack.
⑧
Checking the connection of air connector and air hose
⑨
Checking air pressure.
Items check
after power
on
①
Checking if the monitor display normally after system start up.
②
Checking if emergency button can work normally or not.
③
Checking if placement head can move back to the origin.
④
Checking if there’s abnormal noise while placement head move.
⑤
Checking all nozzles vacuum pressure.
⑥
Checking if PCB moving on rails smoothly or not; Sensor
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