Common problems when surface mount components

Generally, SMT includes surface mount technology, surface mount devices, surface mount components, SMT management
Common problems when surface mount components
1, nozzle deformation, plug, damage, lack of vacuum pressure, air leakage, resulting in suction unsuccessful, take material incorrect,or throwing material because of a wrong identification.
Solution: check the equipment daily, test the NOZZLE center, clean the nozzle, maintenance equipment regularly.
2, the spring tension is not enough, the nozzle and HOLD does not coordinate, up and down not smooth;
Solution: Inspect and replace vulnerable parts..
3, HOLD / SHAFT or PISTON deformation, nozzle bending, nozzle wear shortening causing low performance of material taking;
Solution: Inspect and replace vulnerable parts..
4, Material taking is not in the center of the material, or at a wrong height(generally encountered after the parts under the pressure 0.05MM) resulting in offset, take material is not correct, there is a deviation, identification with the corresponding data parameters do not match And the identified system as an invalid material to abandon;
Solution: Inspect and replace vulnerable parts., correct machine to origin.
5, the vacuum valve, vacuum filter core dirty, Foreign body clogged vacuum tube, channel is not smooth, when taking materials,vacuum is not enough for equipment running speed
Solution: require technicians to clean the nozzle every day.
6, the machine Machine positioning is not level, big shock.Machine with FEEDER resonance caused poor feeding
Solution:Check the equipment level fixed support nut
7, screw, bearing wear loose caused by the operation of vibration, stroke changes and poor data collection;
Solution: Do not use air gun blowing machine inside to prevent dust, debris, components attached to the screw.Inspection and replacement of vulnerable parts.
8, the motor bearing wear, the reader and the amplifier aging caused by the machine origin changes, the operation of data is not accurate and poor data collection;
Solution:Inspect and replace vulnerable parts., calibration machine origin.
9, vision, laser lens, nozzle reflective paper is not clean, there are debris interference caused by poor camera recognition;
Solution: Test NOZZLE center, cleaning the nozzle, according to plan regular maintenance equipment.
10, Identify the light source selection improper, the lamp aging luminous intensity, gray does not cause poor handling;
Solution: test the brightness of the camera and lamp brightness, inspection and replacement of vulnerable parts.
11, reflective prism aging coke, wear scratches caused poor handling;
Solution: Inspect and replace vulnerable parts..
12, the lack of pressure, vacuum leakage caused by lack of pressure and can not afford to take or after the patch on the way to drop;
Solution: Inspect and replace vulnerable parts..
13, the feeder deformation caused by squeezing each other to change the feeding position and poor recovery;
Solution: according to the provisions of the required operation.
14, the feeder gland deformation, spring tension is not enough to cause the tape is not stuck in the feeder on the ratchet gear, do not roll with the throwing
Solution: Inspect and replace vulnerable parts..
15, the camera loose, aging caused by poor identification of throwing materials;
Solution: Inspect and replace vulnerable parts.
16, the feeder ratchet gear, drive the claws, positioning claw wear, electrical bad, poor feeding machine feed material feed is not expected to take the poor or poor and throwing material; check and replace the vulnerable
17, the machine supply platform wear and tear caused FEEDER after the installation of loose and poor data collection;
Solution: Inspect and replace vulnerable parts..
18, some other special need to slow down the placement of parts without slowing and placement, will also cause the suction rate of the ground. Counter
Solution: feeder feeding slowdown, X / Y / H axis deceleration or adjustment of each action with timing control.