How should this cylinder be understood?
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How should this cylinder be understood? Is it single-acting or double-acting? How is a two-position three-way solenoid valve controlled in a double-acting system? This probably can’t be achieved. If it’s a single-acting type, why are the connections made at two separate positions, one on top and one at the bottom of the cylinder?
The key concept lies in solenoid valves, which use instrument air supplied through an intermediate hole to flow toward one side of the cylinder when the solenoid valve is activated (either powered on or off), thereby pushing the cylinder to the other end. At the same time, the compressed gas on the other side of the cylinder is discharged into the atmosphere through a conduit to the solenoid valve. Conversely, when the solenoid valve is energized/de-energized, it pushes the valve core inside the solenoid valve to the other side, changing the internal air path; air from one side of the cylinder is released into the atmosphere while instrument air is introduced on the other side, causing the cylinder to move and thereby driving the valve to operate. Solenoid valves can be found on Baidu Images, along with video animations.
Why can’t I see the image? If you can see it, I’ll help analyze it for you
I can’t see your photo, so I’m not entirely sure. I’ll send you an image for reference; in reality, it’s a double-acting locator, but the solenoid valve is also two-position three-way! At its core, it is still a double-acting actuator; its operation is no different from that of a regular double-acting actuator. The only difference is that when the solenoid loses power, it can return to its safe position thanks to the spring inside the actuator! I think yours is similar to this; if it’s different, please send a photo so I can take a look!