implmex
Diamond
- Joined
- Jun 23, 2002
- Location
- Vancouver BC Canada
Good morning all Moldmakers:
I have a mold build going on right now and I have a technical question for all you experienced designers and builders.
I need to run two slides for two different parts in one mold.
The slides are NOT directly opposite each other but are offset by 2 inches to make the mold shorter.
I always preload the slides and locks by at least 0.002"; more for bigger molds.
With the slides offset, the preload will want to twist the Hotside relative to the Coldside.
I'm going to put 4 strip type taperlocks around the periphery of the parting surface to resist this twisting force.
The question:
Should I preload the taperlocks that are at the opposite ends of each slide stroke too?
If I do it I'd obviously do it by shifting the HS lock relative to the CS lock.
One instinct says YES, the other says NO.
I know the taperlocks that are oriented parallel to the slides need no preload...but what about those damned end taperlocks??
Also this mold has a sprung floating HS plate and the slide locks are bolted to the top plate so I need to taperlock those two plates together too.
(I need to hold the mold closed while the slides start to pull or I'll distort the parts as the cores pop free)
Do I preload those as well?
Here is a picture with both HS plates hidden, to help you visualize it.
All comments will be happily accepted.
Cheers
Marcus
Implant Mechanix • Design & Innovation > HOME
Vancouver Wire EDM -- Wire EDM Machining
I have a mold build going on right now and I have a technical question for all you experienced designers and builders.
I need to run two slides for two different parts in one mold.
The slides are NOT directly opposite each other but are offset by 2 inches to make the mold shorter.
I always preload the slides and locks by at least 0.002"; more for bigger molds.
With the slides offset, the preload will want to twist the Hotside relative to the Coldside.
I'm going to put 4 strip type taperlocks around the periphery of the parting surface to resist this twisting force.
The question:
Should I preload the taperlocks that are at the opposite ends of each slide stroke too?
If I do it I'd obviously do it by shifting the HS lock relative to the CS lock.
One instinct says YES, the other says NO.
I know the taperlocks that are oriented parallel to the slides need no preload...but what about those damned end taperlocks??
Also this mold has a sprung floating HS plate and the slide locks are bolted to the top plate so I need to taperlock those two plates together too.
(I need to hold the mold closed while the slides start to pull or I'll distort the parts as the cores pop free)
Do I preload those as well?
Here is a picture with both HS plates hidden, to help you visualize it.
All comments will be happily accepted.
Cheers
Marcus
Implant Mechanix • Design & Innovation > HOME
Vancouver Wire EDM -- Wire EDM Machining