The function and operating of pittsburgh lock former machine
When the two rollers are fed too much or enter the metal block, the piston rod of the hydraulic cylinder is overloaded, the hydraulic pump stops, the accumulator buffers the pressure change, the relief valve opens and returns, and the piston rod shifts. The gap between the press rolls is increased so that the hard objects pass through the press rolls, the system pressure returns to normal, and the press roll can be protected from damage.
The feeding part is mainly to realize the quantitative feeding to protect the material evenly into the roller room. The screw feeding device is driven by an electromagnetic speed-regulating motor, which is forced by the belt pulley and the worm decelerator to press into the main feeding port. Due to the constant torque characteristics of the electromagnetic speed regulating motor, when the feeding amount of the screw feeding machine is equal to the amount of material required by the main machine, a constant feeding pressure can be maintained so that the pellet quality is stable. If the amount of feed is too large, the feeder will be electrically overloaded. If the amount of feed is too small, it will not be a ball. Therefore, skilled operation is an important condition for the pressure ball to work normally.
The transmission part, the main drive system for the motor, triangle belt, reducer, open gear, roll. The main engine is powered by an electromagnetic speed control motor, and is transmitted to the drive shaft through a pin-shaft coupling via a pulley and a cylindrical gear reducer. The active shaft and the driven shaft run synchronously through open gears. The hydraulic bearing is installed behind the passive bearing seat. The hydraulic protection device is a hydraulic pump to drive the high pressure oil into the hydraulic cylinder to make the piston produce axial displacement. The front joint of the piston rod is topped on the bearing seat to meet the production pressure requirements.