Why is a buffer device added to the hydraulic cylinder of a 200-ton hydraulic press, and what are its functions?
When the hydraulic cylinder of a 200-ton hydraulic press operates at continuous high speed, the inertia of the piston rod is significant, resulting in a large momentum. As the piston and piston rod move to the end of the hydraulic cylinder, the end cap experiences mechanical impact, generating a substantial amount of shock and noise. This can affect the forming precision of the equipment and even lead to destructive accidents. To address this issue, a buffer device is added to the end of the hydraulic cylinder.
Functions of the buffer device:
1.Prevent Impact on Cylinder End: The buffer device prevents the cylinder end from being impacted at the end of the stroke, reducing noise generation and ensuring the accuracy of piston movement, thereby improving the service life of equipment components.
2.Noise Reduction: The working principle of the hydraulic cylinder buffer device involves forcing a portion of the oil between the sealed piston and the cylinder cap to pass through small holes or thin gaps, creating significant resistance. This gradual reduction in the movement of components acts as a brake, preventing collision and impact between the piston and the cylinder cap, thus reducing noise.
3.Enhance Performance: The buffer device improves the performance of the hydraulic cylinder in the 200-ton hydraulic press, simultaneously extending the equipment's overall service life.
The buffer device is a crucial addition to hydraulic press hydraulic cylinders. During equipment inspection, it can be checked by observing the operation of the equipment. If the equipment operates quietly and smoothly during the compression, material laying, and demolding processes, it indicates that a buffer device is installed. Conversely, if noise is generated during these operations, it suggests that the equipment lacks a buffer device.