11 kinds of faults and elimination of screen printing machine in printing process
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The first type of failure phenomenon: Immediate action when the foot switch is not stepped on in semi-automatic mode.
Most of the causes of such failures are caused by damage to the foot switch or short circuit caused by the water in the foot switch socket, and the other is a problem with the manual start button switch. The repair method is to replace the new switch, socket, push button switch or disassemble the repair related damage parts.
The second type of failure phenomenon: when the semi-automatic work is performed, the pedal switch slides down, and then rises after being released.
This phenomenon is generally caused by damage or disconnection of the proximity switch on the left side of the cross slide. The solution is to replace the proximity switch or connect the switch.
The third type of failure phenomenon: when the semi-automatic work is performed, the foot slide switch is lowered, and the printing seat does not move after being moved to the left.
The cause of this failure is that the proximity switch on the left side of the cross slide is not sensed or has a problem. The solution is to adjust the proximity switch of the left proximity switch or the replacement proximity switch; and the micro switch in the foot switch does not move, which may cause this fault. The solution is to adjust, repair or replace the new microswitch with the microswitch in the foot switch.
The fourth type of fault phenomenon: stepping on the foot switch during semi-automatic operation, the slider moves to the left and then rises but does not move to the right. This phenomenon occurs when the proximity switch on the upper left side of the vertical slide is not sensed or the proximity switch has a problem. The solution is to adjust the proximity proximity switch to sense or better the proximity switch.
The fifth type of fault phenomenon: the action is slow and the action is slow and half beat. Such a fault is to control the solenoid valve to block foreign matter or the solenoid valve is faulty. The solution is to remove the solenoid valve to clean or replace the solenoid valve.
The sixth fault phenomenon: manual, semi-automatic all do not operate, the power light is on. The cause of such failure is that the low-voltage side fuse is blown, no air source is entered, and all the solenoid valves are faulty. The solution is to change the low-voltage side fuse to check whether the pressure reaches 4-7kg/cm. The solenoid valve has all the faults, and most of them are disconnected.
The seventh failure phenomenon: automatic, semi-self-start does not fall. Such a fault occurs when the proximity switch on the right side of the cross slide is faulty or not sensed, the selection switch is faulty, and the single-action switch interlocking point is damaged. The solution is to adjust the proximity switch to sense or replace the right proximity switch, replace or repair the selector switch and the single-action switch.
The eighth fault phenomenon: automatic failure to start, such fault is the micro-switch of the upper and lower cylinders normally closed, the contact can not be turned on or the timer is damaged, the solution is to repair the micro switch, or replace the timer.
The ninth failure phenomenon: the work surface does not inhale, the cause of such failure is that the suction motor is burnt.
The contactor that controls the operation of the motor is damaged, the suction motor is rotated, but the suction solenoid valve is faulty, the suction selector switch is faulty, and the solution is repaired or replaced.
The tenth fault phenomenon: the work surface does not inhale, because the suction control solenoid valve is broken or the internal block is damaged. The solution is to replace the repair.
The eleventh fault phenomenon: the rising speed of the vertical sliding seat is slow, because the vertical sliding bearing has no oil or the cylinder piston is worn, and the magnetic collision causes the axial center to bend. The solution is to replenish the oil, replace the piston password, and adjust the shaft center.