The function of spring in the drive mechanism of press

In the transmission mechanism of the press, when the clutch and the brake are mechanically rigid interlocked, as long as the cylinder is set on the clutch, the air pressure acts on the piston of the cylinder to make the clutch friction pair fit, and the brake friction pair which makes the spring brake air pressure separate and does not brake. In this way, the brake friction pair should be separated first when the cylinder is in air intake, and then the clutch friction shall be made The pair fit is finished.

The clutch friction pair separation and brake friction pair fitting are realized by the clutch return spring and brake spring respectively. Therefore, when the cylinder is exhaust, the brake spring and the return spring separate the clutch friction pair, and then make the brake friction pair fit start to brake.

The process of air inlet and exhaust of cylinder should go through the electrical lag stage of electrical control elements; the equal volume inlet and exhaust stage, variable volume inlet and exhaust stage (piston movement stage), equal volume inlet and exhaust stage and extended intake and exhaust section, which is rigid interlock to the machinery.

When clutch is required to be combined, the coil of electromagnetic air distribution valve is powered up, and the clutch cylinder is intake. Its piston moves the movable friction disc of the brake through mechanical interlock rod to move and disconnect the brake friction pair first, and the brake does not brake, and then the clutch friction pair is combined. The electromagnetic air distribution valve is de energized, the cylinder exhaust and the air pressure decreases. The brake spring moves the brake disc, and the clutch piston moves simultaneously. The friction pair is separated, and then the brake friction pair is combined after the further movement of the cylinder piston, and the brake friction pair can be combined to start the braking function.

More news about spring“ www.qzspring.com ”