What is the purpose of the top cylinder of the four-column hydraulic press?

What is the purpose of the top cylinder of the four-column hydraulic press?

The first step in the working process of the four-column hydraulic press is to eject the workpiece. The specific realization is that when the main cylinder stops moving, press the eject button, the corresponding 3 electromagnets are energized, and 2 of the cartridge valves are opened. The two hydraulic oils enter the lower chamber of the ejector cylinder through the valve cartridge valve, and the oil in the upper chamber flows back to the oil tank through the valve, and the workpiece is ejected. The second step is to return the ejector cylinder. Press the return button first, the electromagnet is de-energized, the other electromagnets are energized, the cartridge valve is opened, the hydraulic oil enters the upper chamber of the ejector cylinder through the valve, and the oil in the lower chamber It flows back to the fuel tank through the valve and ejects the cylinder back. When these steps are completed, the next step begins, and then a circulatory system is formed to maintain the continuous movement of the four-column hydraulic press. This article is from the official website of the manufacturer WORLD Press Machine www.pressmachine-world.com, please indicate the source for reprinting!

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