Gas line connection of the booster cylinder, working principle diagram of the booster cylinder

Gas-liquid booster cylinder gas circuit connection diagram


The driving source of the gas-liquid boosting cylinder is compressed air, which needs a solenoid valve to control it. Here is an introduction to how the boosting cylinder is connected to the gas line.


First, let’s look at the picture below. There are 4 air ports on the booster cylinder, so two solenoid valves are used. The solenoid valve used in the picture is a combination of a five-port two-position and a five-port three-position solenoid valve. This combination can be adjusted Mold, inch movement.





The picture below is the gas circuit connection diagram of the gas-liquid booster cylinder. We mark the four gas ports as P1, P2, P3, and P4 respectively. As shown in the figure, P1 and P4 are in a group, P2 and P3 are in a group, P1 and P4 are connected to a five-port three-position solenoid valve, this combination controls the preload stroke, P1 is connected to port A, and P4 is connected to port B. P2 and P3 are connected to five-port two-position solenoid valves to control boosting.





After understanding the drawing, the gas circuit connection of the booster cylinder is very simple. The sequence of actions is P4 for air intake, P1 for exhaust, the piston in the pre-pressure section moves down, and then the solenoid valve P3 is switched for intake and P2 for exhaust, and the booster piston moves down for boosting. , then the P2 intake P3 exhaust boost piston returns, the P1 intake P4 exhaust pre-pressure piston returns, and the whole action is completed. The other two five-port two-position solenoid valves can also be used, but they do not have the function of inching the mold.


Note: Be sure to pay attention to the correspondence between the booster cylinder port and the solenoid valve socket. If they are connected incorrectly, the booster cylinder will not work properly.






Booster cylinder gas line connection










Booster cylinder action program:


1. The C port and A port of the booster cylinder are ventilated, and the front axle is in a rising state;


2. Port B is ventilated and port A is exhausted. The compressed air acts on the surface of the hydraulic oil in the oil storage tank. The hydraulic oil drives the piston in the pre-pressure chamber to move and makes the mold at the end of the piston rod in the pre-pressure chamber touch the workpiece;


3. Air is inlet at port D and exhausted at port C. The compressed air acts on the supercharging piston to displace the hydraulic oil in the pre-pressure chamber, causing the hydraulic oil to expand, thereby maintaining high pressure for the mold at the shaft end of the pre-pressure piston rod. Press molding work.


4. After the supercharging is completed, air is taken in through port C and exhausted through port D. The supercharging piston rises;after the supercharging piston is in place, port A air intake, port B exhaust pre-pressure piston returns, and the hydraulic oil returns to the oil storage tank. At this time, an action cycle is completed!


Note: When returning after the boosting is completed, the boosting (C port) and pre-pressure (A port) can be powered off and returned at the same time;this can save action time (the pre-pressure piston must not be returned first when returning) .






Working principle diagram of booster cylinder







The supercharged cylinder means that high-pressure output can be achieved with a smaller air source pressure through an external air source. The supercharged cylinder is also called a supercharged cylinder or a gas-liquid supercharged cylinder.


The supercharging process of the supercharged cylinder: The supercharged cylinder is not purely pneumatically controlled. It refers to pushing the oil pressure surface through the air source pressure to achieve the purpose of supercharging. Regardless of whether the pressure maintaining circuit is formed and the pressure drops under any circumstances, the supercharging cylinder will automatically start to increase the leakage pressure while maintaining a constant circuit pressure! The supercharging principle of the supercharging cylinder is similar to that of the supercharging cylinder. When the air driving pressure it outputs increases or the pressure drops, the supercharging cylinder will automatically start and stop automatically after the pressure reaches a balance. This mode uses The single-pore non-balanced gas distribution valve realizes automatic and repeated operation of the pump.