Pneumatic valve for cartesian robot

AI Thread Summary
Jake Platt is developing a high-speed X/Y Cartesian robot designed to vacuum defective parts from a moving conveyor, utilizing a venturi vacuum. He seeks to eliminate the need for a Z-axis by toggling the vacuum on and off with a suitable pneumatic valve, but is struggling to find a valve that accommodates larger hose diameters, specifically those comparable to ping-pong balls. A suggestion was made to consider creating small holes upstream in the hose to disrupt the vacuum instead of using a valve. This alternative approach could simplify the design while maintaining the vacuum's effectiveness. The discussion highlights the challenge of sourcing appropriate pneumatic components for specialized applications in robotics.
Jake Platt
Messages
23
Reaction score
0
Hello,

I am trying to build a high-speed X/Y cartesian robot which vacuums up defected parts from a moving conveyor. The end effector of the robot has a venturi vacuum integrated. Because the vacuum is constant, I need a Z-axis to go up/down for the end effector to get the defects otherwise it sucks up everthing. This is very slow. I would rather keep the height constant of the end effector and instead toggle the vacuum on/off using a valve of some kind so I can eliminate the z axis. I can't seem to find what I'm looking for because valves I've found are for small diameters (10mm). I need a valve for hoses about the size of ping-pong balls. Can anyone suggest a source for a pneumatic valve in the size range and that can cycle in very high speeds?

Thank you,
Jake Platt
 
Engineering news on Phys.org
Jake Platt said:
Hello,

I am trying to build a high-speed X/Y cartesian robot which vacuums up defected parts from a moving conveyor. The end effector of the robot has a venturi vacuum integrated. Because the vacuum is constant, I need a Z-axis to go up/down for the end effector to get the defects otherwise it sucks up everthing. This is very slow. I would rather keep the height constant of the end effector and instead toggle the vacuum on/off using a valve of some kind so I can eliminate the z axis. I can't seem to find what I'm looking for because valves I've found are for small diameters (10mm). I need a valve for hoses about the size of ping-pong balls. Can anyone suggest a source for a pneumatic valve in the size range and that can cycle in very high speeds?

Thank you,
Jake Platt

Interesting. Can you instead just open several small holes in the hose some distance upstream to spoil the vacuum at the end?
 
I misunderstood your point for 2 months. I was re-reading old posts and now i finally get your point. Clever! It never dawned on me to the leave the vacuum intact and just cancel the pressure.
 

Thread 'Race car suspension Class'

Posted June 2024 - 15 years after starting this class. I have learned a whole lot. To get to the short course on making your stock car, late model, hobby stock E-mod handle, look at the index below. Read all posts on Roll Center, Jacking effect and Why does car drive straight to the wall when I gas it? Also read You really have two race cars. This will cover 90% of problems you have. Simply put, the car pushes going in and is loose coming out. You do not have enuff downforce on the right...
View full post »

Thread 'Cantilever help'

I'm trying to decide what size and type of galvanized steel I need for 2 cantilever extensions. The cantilever is 5 ft. The space between the two cantilever arms is a 17 ft Gap the center 7 ft of the 17 ft Gap we'll need to Bear approximately 17,000 lb spread evenly from the front of the cantilever to the back of the cantilever over 5 ft. I will put support beams across these cantilever arms to support the load evenly
View full post »
Thread 'What's the most likely cause for this carbon seal crack?'

Thread 'What's the most likely cause for this carbon seal crack?'

We have a molded carbon graphite seal that is used in an inline axial piston, variable displacement hydraulic pump. One of our customers reported that, when using the “A” parts in the past, they only needed to replace them due to normal wear. However, after switching to our parts, the replacement cycle seems to be much shorter due to “broken” or “cracked” failures. This issue was identified after hydraulic fluid leakage was observed. According to their records, the same problem has occurred...
View full post »

Similar threads

Cherenkov Radiation for lighting
Replies
1
Views
6K

Hot Threads

Recent Insights

Back
Top