Paper cutter common failure analysis and solution
Date:2019-05-29 Source: Dapeng Machinery Size:Larger  Normal  Samll

The first fault phenomenon of the paper cutting machine is that it acts immediately without stepping on the foot switch during semi-active operation.

The reason for this type of phenomenon is mostly due to damage to the foot switch or short circuit caused by water entering the foot switch socket. Another reason is that there is a problem with the manual start button switch. The correction method is to replace the switch, socket, button switch with a new one, or disassemble and repair the associated damaged parts.

The second fault phenomenon of the paper cutting machine is that during semi-active operation, the sliding seat of the foot switch is lowered, and then rises again after being unfolded.

This appearance is usually caused by damage or disconnection of the wiring to the proximity switch on the left side of the sliding seat. The solution is to replace the proximity switch or connect the switch wiring.

The third fault phenomenon of the paper cutting machine is that during semi-active operation, stepping on the foot switch lowers the vertical sliding seat, and the printing seat does not move after moving left.

&The reason for this condition to occur is that the switch on the left side of the sliding seat is not sensed or there is a question. The solution is to adjust the sensing point of the left proximity switch or replace the good proximity switch; There is also a problem where the micro switch inside the foot switch is stuck and does not operate, which can also cause this problem. The solution is to adjust, correct, or replace the microswitch inside the foot switch with a new microswitch.

&The fourth fault phenomenon of the paper cutting machine: stepping on the foot switch during semi-active operation, the sliding seat lowers and moves left, but then rises but does not move right.

&The occurrence of this phenomenon is that the upper left proximity switch of the vertical sliding seat is not sensed or there is a problem with the proximity switch. The solution is to adjust the upper proximity switch sensing or a very good proximity switch.

&The fifth fault phenomenon of the paper cutting machine is that after the action switch, the rising action slows down by half a beat.

&This type of problem is caused by foreign objects blocking the control solenoid valve or faulty solenoid valve. The solution is to remove the solenoid valve and organize it or replace it with a new one.

&The sixth fault phenomenon of the paper cutting machine is that both manual and semi-active modes do not operate, and the power light is on.

&The reason for this type of problem is that the low-voltage side fuse is blown, there is no air source entering, and all the solenoid valves are faulty. The solution is to replace the low-voltage side fuse and check if the pressure has reached 4-7kg/cm. The problem with all the solenoid valves is minimal, most likely due to a broken connection.

&The seventh fault phenomenon of the paper cutting machine: active and semi-automatic starting without lowering.

&This type of problem occurs when the switch on the right side of the sliding seat is faulty or not sensed, the selection switch is faulty, or the single action switch interlock point is damaged. The solution is to adjust the proximity switch sensing or replace the right proximity switch, replace or modify the selection switch and single action switch.

&The eighth fault phenomenon of the paper cutting machine: active failure to start. This type of problem is that the micro switches of the upper and lower cylinders are often closed, the contacts cannot be connected, or the timer is damaged. The solution is to correct the micro switches or replace the timer.

&The ninth fault phenomenon of the paper cutting machine: the worktable does not inhale air, and this type of problem is caused by the burning of the suction motor.

&The contactor that controls the operation of the motor is damaged, the suction motor changes, but there is a problem with the control of the suction solenoid valve or the suction selection switch. The solution is to correct or replace it.

&The tenth fault phenomenon of the paper cutting machine is that the work table is not breathing air.

&The reason is that the solenoid valve controlled by the suction pump is damaged or the internal block is damaged. The solution is to replace it