Estou a estudar a injeção desta peça. É possível fazer a extração da mesma num molde simples de duas placas? A peça é simétrica. É possível colocar extratores também na placa de injeção?
Obrigado
[translated with Google]
I am studying the injection of this part. Is it possible to extract it in a simple two-plate mold? The part is symmetrical. Is it possible to place extractors on the injection plate as well?
Thank you
Hello @tiago_oliv ,
Are you asking about ejection within Moldflow Adviser? Neither Moldflow Adviser or Insight would model ejection pins.
Mason
Hello @tiago_oliv ,
You should be able to eject the part. You could simulate a Design Adviser analysis within Moldflow Adviser to check for draft and undercuts.
Again, Moldflow Adviser will not be able to simulate the ejection of the part.
Mason
Hi,
I think you need to separate things here.
Modeling mold block A and B is to help automatic runner generation for simulation in Moldflow Adviser.
In this case as the model is in the picture, and for simulation it should be fine.
This is a simplification of a real mold design for mold filling simulation.
A real mold is properly build up of more components.
This is not available to model in Moldflow Adviser.
You need to do this in CAD.
Then, for a real mold you have some options.
You could increase draft on part to make sure it will stick to moving half, and ensure part could be ejected.
This means moving the parting plane closer to one side, instead of being in the middle of part.
This would be the common solution, I would say.
It is possible to have ejectors on fixed side, but technical solutions needed for the mechanical movement.
If parting plane is as in picture you need drafts on part from parting plane, in both directions.
As parting in middle, you cannot tell on which side it will stick to.
On fixed half you could have ejectors with a spring load that pushes part to moving half when mold opens.
There are also solutions which has a mechanical device that make an ejection movement.
This increases mold cost.
Another solution if parting plane is in middle is to make small undercuts on part on moving side to ensure the part will stick to ejection side. That could also be a trial and error procedure when running the mold for the first time.
I think you should design the part to ensure sticking to ejection side or introduce a mechanical system on fixed half.
The later solution increases mold cost.
Hope this helps somewhat.
Regards,
Berndt
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