Plastic mold thimble often do Youfei edge position
There is a problem with the tolerance between the thimble and the top pin. The gap is too large, or the thimble is worn off. Check the actual condition of the mold carefully and decide to take action.
Thimble front wear, then change the thimble directly, if the thimble hole in front of the wear and tear, it should be from the new hole with thimble
The thimble clearance is too large
Either the thimble wears off, or the thimble hole becomes thicker,Measures can be taken, such as replacing a slightly thicker thimble
