third plate mold

[beppe296551]

Hello guys, I would like to know, a third plate mold that function has and when it is preferable to use it? and with which polymers it is preferable to use it? My is simple professional curiosity.

 

[Mocca]

hi. its use is not a matter of preferences. is used when it is necessary to "heat" subsquadri even before performing the mould opening between matrix and punch.
we waved

 

[IPdesign]

I add to the right mocca opzine.

in case a particular print should be obtained with multiple injection points without the use of hot chamber, the casting channel passes between the matrice plate and the head plate.
an automatic mechanism at the opening provides to create the expulsion of the pultipoint casting.
this option allows on rather critical details about fillings to add later other injection points without overturning the concept of the mold. (which can be stacked with a hot room.
can be used with almost all thermoplastics .

 

[beppe296551]

thanks many guys for the answers.:finger:

 

[Mocca]

I add to the right mocca opzine.

in case a particular print should be obtained with multiple injection points without the use of hot chamber, the casting channel passes between the matrice plate and the head plate.
an automatic mechanism at the opening provides to create the expulsion of the pultipoint casting.
this option allows on rather critical details about fillings to add later other injection points without overturning the concept of the mold. (which can be stacked with a hot room.
can be used with almost all thermoplastics .

Interesting thing. I never had to deal with this type of injection; Can you get me better even with a scanned sketch? I'd be grateful considering my curiosity.
We said hello.

 

[IPdesign]

dammi in mp una old email

 

[Jari]

I add a further use, although the other interventions have already said practically everything.
In fact, I think of the case in which to "force" the extraction of a small sq (clip or similar...) but in order to allow the plastic to elasticate it is necessary to remove half (heat by third plate) steel parts that would prevent such elastic deformation.

but this is only an example, it is also not said that you have to use the third plate.

greetings

 

[matitarotta]

I add a further use, although the other interventions have already said practically everything.
In fact, I think of the case in which to "force" the extraction of a small sq (clip or similar...) but in order to allow the plastic to elasticate it is necessary to remove half (heat by third plate) steel parts that would prevent such elastic deformation.

but this is only an example, it is also not said that you have to use the third plate.

greetings

I add just to punctuate even if you have already said everything, even the case where I find myself having some males in part fixed. by means of the movement of a third plate in l.f. I extract the manufact from the aforementioned males:finger:

 

[stang64]

for moulding of toothed wheels (wiring), if the injection point in a toothed wheel is located in the area of the gearing it is understood that it cannot be technically an ideal product to its function, the injection with the use of the third plate allows to get in cavity with the material in a more suitable area, surely far from the teeth of the gear.

greetings

 

[PBono]

is used when it is necessary to "heat" subsquadri even before performing the mould opening between matrix and punch.

hi to all, I agree with mocca and add that I often use the third plate to make it arretrate, before the opening mold, dowels or thorns that tie a lot to the piece and maybe they would make it stay on the injection side.
I accuse myself of the discussion to ask you what you usually use to move the third plate, given the reduced size of our molds I often use draggers, simple and economic but perhaps not too reliable.
What do you think?

 

[IPdesign]

where the error is allowed, I too dragged.
where instead it serves the certainty of the positioning I go of hasco z174 , those also allow to remain the 3à plate in a safe and blocked position