Considering the radial force, what's the point if the thimble is slightly shorter?
There are so many reasons. Without affecting the product situation, you can increase the thimble release, the slope is not thimble hole is not good, and so on, I do not know your specific situation of the mold. Don't say that later. Don't ask for details. Look, you're a layman
It is impossible to solve the problem of grinding short thimble. The main reason for breaking the thimble is that the ejector head is out of balance (the center of the ejector pin and the center plate are dislocated and cause larger radial forces)Terms of settlement：1: the use of good quality thimble.2: the side plate hole from the new seal hole (also direct repair) to avoid thimble radial stress.
Mold design and processing, should consider this problem, the weak thimble gatto, force the place with a thimble.The die material is hard and the thimble runs smoothly.Maintenance. Consider the effect of die thermal expansion and leave enough clearance. The die assembly is not zero to zero
