How to deal with printing offset caused by SMT solder paste?

   With the development of society, many industries have undergone significant changes. There are more and more smart products and some changes in machines, which is a very good thing for many enterprises. Moreover, soldering in the electronics industry is also inevitable now, such as in many factoriesSMTPrinting machines are well-known to all. They are easy to operate and have many advantages. They are very popular in this industry. Therefore, quality control of solder paste printing is also one of the key points in electronic processing. If it occursSMTHow should one deal with the printing offset caused by solder paste? Now, JJY solder Paste Manufacturer will tell you:

SMTSolder pastePrinting offset is generally caused by the following six reasons:

1Poor recognition of positioning points causes solder paste printing offset. It is necessary to debug the vision system of the fully automatic solder paste printing machine or rewrite the coordinates of the positioning points.

2Coordinate offset causes solder paste printing offset. The coordinates need to be adjusted properly.

3The loose fixation of the steel mesh causes the solder paste printing to shift. It is necessary to check the fixation of the steel mesh.

4The camera touched.PCBIf the solder paste printing is offset, the camera cover letter needs to be locked in the system.

5When identifying the positioning points, snowflakes cause the solder paste printing to shift. It is necessary to tidy up and secure the signal lines, check whether the connection lines of the visual system processing box are loose, and replace the camera lens

6,PCBThe instability during the stoppage causes the solder paste printing to shift, and it needs to be inspectedPCBCheck whether the positioning fixture, tray fixture and vacuum can be held stablyPCB.

Then how should it be dealt with:

1ObserveMARKThe identification of points: Will the identification center be thereMARKPoint center

2Observe the width of the conveyor belt. The width of the track should not be too wide; otherwisePCBIt cannot be clamped tightly.

3Observe whether the laser steel mesh is fixed well and try pushing it manually.

4TopPINorBACKUP PINCheck if the system is installed properly. If this happens, the top can be removedPINRemove all of them and reinstall them.

5,PCBWhether the thickness setting is appropriate or not needs to be checked first.

6Check whether the clamping device of the steel mesh correction system is normal (this needs to be confirmed in the self-diagnosis);

7Replacenextmove cardThe connection line with the control box,Check if the connection is loose.

8Swap the control box with another one. Sometimes there is a problem with the slots on the back panel of the control box.

9Check and correct whether the bearings in front of the motor are worn or faulty.

10If there is an abnormality with the system software or hard disk, reinstall the system or replace the motor.

The above is some knowledge content introduced for everyone. You can take a look. This is helpful for users in this field to avoid mistakes as much as possible and prevent product quality problems. If you still have any questions and want to know more about soldering, please continue to follow the online message of JJY Solder Paste Factory to interact with us.