Introduction to the characteristics of hydraulic blanking machine

The main basis to judge the function of hydraulic blanking machine is: punching force and punching speed. The machine with large punching force but low punching speed or high punching speed but small punching force can not finish the punching task smoothly.

For the mechanical drive blanking machine, the punching speed is generally high, about 250 times / min; The average punching speed is 200 mm / s. The blanking speed of hydraulic blanking machine is generally greater than 75mm / s.

The difference between the mechanical drive and the hydraulic drive is mainly determined by the different characteristics of the two drives: the mechanical drive is rigid, while the hydraulic drive is flexible.

When the punching head acts on the processed object through the cutter die, the pressure in the acting cylinder does not reach the rated pressure, and the pressure will increase with the increase of contact time (cutting into the working object), until the electromagnetic directional valve receives the signal, the directional valve changes direction, and the punching head starts to reset; At this time, the pressure in the cylinder may not reach the set rated pressure due to the time limit of the pressure oil entering the cylinder; In other words, the punching has been completed before the system pressure reaches the design value.