Quote:
Originally Posted by brianaong
We want to be able to control how much air is released from the cylinders because the arms, in theory, should adjust to the width of both of the bins and all sides of the totes.
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I'm sorry, I over analyzed this. The default pneumatics system will do this, if you want it to self adjust to the width of the container or tote this will happen with a single or a double solenoid setup.
Basically there will be pressure applied to one side or the other of the pneumatics (one of the solenoids will be open) the other solenoid is exhausting it's pressure to allow for a pressure differential in the system, this is what allows for extension or retraction of the piston. There will always be one side of the pneumatics in the "Exhaust" state, when your actuator comes into contact with something it will exert force until equilibrium is reached, there is no need to do anything with the exhausted air. Just set up your pneumatics like you see on test boards, robots, etc. and this system will work for you.