PIN Analysis of Spring-type Guide Needle Card

　　1. After disassembling the defective sample 2, it is found that there is colloid on the needle shaft

　　2. Observe the spring and needle, no abnormality.

　　Summarize:

　　1. The reason for the shrinkage of the needle and the stuck pin of the defective sample 1 is that the nozzle is blocked by solid glue, which causes the needle shaft to be unable to be pressed normally.

　　2. The reason why the bad sample 2 is stuck is that the nozzle is blocked by the colloid, resulting in the stuck pin.

　　3. There is no process environment with glue in our production riveting process.

　　Suggestion: The client analyzes the process of the spring-type guide needle, and pays attention to the control of the process with glue to prevent the glue from contacting the PogoPin.

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