i am trying to find a way to make a molding system of this part
please say your idea
depends upon the material, size and and and ....need more info from you.
I would just 3d print it.... as it sits right now.
material is PA60
and it is step file of part
i'm not sure what you're asking
are you asking is it moldable?
or are you asking for someone to model the mold for you?
if the latter, usually your chosen mold provider would do that for you
i know it is moldable but i cant find how can i do
i just have problem with sphere section
i can made a insert for that section and i enter to the mold but after injection i cant extract it from mold
i design a sphere insert for creat sphere section that it like a ball
i enter it to the cavity but after injection plastic, hinder the ball extract from core and cavity..
Hi guys, U can use slider ,,,,,,,,, I mean 4 slider ( one slider each quadrant)
Here is a typical section from an industry standard "Conrad Cage". There are typically ejector pins between each ball pocket. With your design you will need ejection from both sides of the tool. Also, you will need to change your swing point on the outside of the ears to get them to pull. If you really want to find out how these molds are built, buy a bearing with a plastic cage an look closely (10X-30X microscope) at the locations of the inserts lines. When I build one of these I calculate different shrinkages for I.D. O.D. P.D. Ball pocket, and Snap. 60% glass filled nylon will be a challenge, Have Fun!
thank you for answers
i have a idea
i want mount balls on the slider and after injection i pull it out from plastic part with a little force
does Plasticity of the PA60 allow ball to exit that?
does not PA60 or plastic part break or deform?
i make a image like this and at this image i want to pull the ball back
I suspect that you will experience some deformation without relieving the area around the ball core, enough that the ball may not be retained. It may be difficult to view in the picture that I attached but the web between the ball pockets is below or on the centerline of the ball pocket to allow the ears to flex and snap off. Here is a section view of a Conrad Cage mold which shows ball core pins, part, and ejector pins.
hi mr Alan Bumbaugh
your answer was very useful
it helped me to design my mold
from far i kiss your hand
where can i find like these mold design for reinforce my experience ?
how can i find some mold mechanism for practice ?
do u have any reference?
Start by picking up every plastic part you can find and ask yourself these questions;
Where are the ejector pins, gates, parting lines, is the cavity in a solid block, are there inserts (witness lines) how was this hole / feature created, did they use slides (hydraulic or mechanical), lifters, collapsing cores, unscrewing mechanism, floating plates, sequential opening?
Most parts will gladly tell you how they were made, some you will need to question with the help of a 10X - 30X microscope.
Use other resources such as mold component suppliers catalogues, DME, Hasco, Progressive, Cumsa are a few, their literature has valuable information.
Keep in mind that some one is going to have to machine the mold you design.
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