"larsen-tools" wrote in message news:4Y41d.259534$sh.89399@fed1read06...
If one were to extend the length of the top clamping plate,

What "top clamping plate" ? Most plastic injection moulding machines
are horizontal.
What's a "clamping plate"? Do you mean the platen?


say 1" on each
end, and extend the ejector plate the same, and bolt a flat bar to each end
of the "A" plate - extended down to the ejector plate when the mold is
closed........

A) one could eliminate the return pins and bushings

B) w/o return pins, free up space for water lines &/or inserts

C) use round or square interlocks for plate alignment

Why isn't that a good idea?????

If it works, it's a good idea (I did something similar).
It may hinder ejection and access if the flat bars are in the way when
the mould is open, they may stop mouldings from falling out unless you
use a robot.
It might increase the length of the cycle if the mould has to open
further to make more rooms for the mouldings to fall out.

M.K.